Fisher CSB700 Pressure Reducing Regulators Installation Guide

Installation Guide
D103483X014

English - May 2018

CSB700 Series

Introduction

This installation guide provides instructions for installation,
startup, and adjustment. To receive a copy of the instruction
manual, contact your local Sales Office or view a copy
at www.fisher.com. For further information refer to:
CSB700 Series Commercial / Industrial Pressure Reducing
Regulators Instruction Manual, D103483X012.

P.E.D. Categories

This product may be used as a pressure accessory with
pressure equipment in the following Pressure Equipment
Directive. For information on the current PED revision see
Bulletin: D103053X012. Pressure regulator does not require
any supplementary upstream safety accessory for protection
against overpressure compared with its design pressure
PS, when upstream reducing station is sized for a maximum
downstream incidental MIPd <= 1.1 PS.

TYPE DESCRIPTION

CSB700, CSB700F,

CSB720,

CSB720F and

CSB750

CSB704, CSB704F,

CSB724F CSB724

and CSB754

Reference Standards

Slam-shut Module

European EN

Base regulator I

Regulator with

PED

CATEGORY

IV

EN334 and

EN14382

FLUID GROUP

Groups 1 and 2 according

to PED 2014/68/EU,
1st and 2nd family gas
according to EN 437 or

other gases (compressed

air, nitrogen). The gas

must be non-corrosive,

clean (ltration on inlet side

necessary) and dry.

Specifications

Available Configurations

See Table 1

Regulator Type

Differential Strength (DS)

Accuracy Class

Up to AC5 (depending on Outlet Pressure)

Lockup Class

Up to SG10 (depending on Outlet Pressure)

Failure Mode per EN334

Fail Open (FO)

Integral Strength (IS) Pressure Ratings

See Table 2

Differential Strength (DS) Pressure Ratings

See Table 3

Body Sizes, Materials, End Connections and
Pressure Ratings

(1)

See Table 4

Operating Pressure Range

(1)

Regulator: See Table 5
Slam-Shut Module: See Tables 7a, 7b, 7c and 7d

(1)

(1)

Maximum Outlet Pressure

(1)

Emergency Casing:

Type CSB700/CSB700F/CSB720/CSB720F:

4.0 bar / 58.0 psig
Type CSB750: 5.0 bar / 72.5 psig

To Avoid Internal Metallic Parts Damage:

Type CSB700/CSB700F/CSB720/CSB720F:

0.34 bar / 5.0 psig over set pressure
Type CSB750: 1.5 bar / 21.8 psig over set pressure —
not to exceed maximum emergency outlet

Operating Casing:

Type CSB700/CSB720: 1.1 bar / 16.2 psig
Type CSB750: 5.0 bar / 72.5 psig

Outlet Pressure Ranges

(1)

9.0 mbar to 4.0 bar / 0.13 to 58.0 psig
See Table 5

Orifice Size:

35 mm / 1-3/8 in.

Pressure Registration

External

Temperature Capabilities

(1)(2)(3)

According to PED Standards:

-20 to 66°C / -4 to 151°F

Non-PED:

-30 to 66°C / -22 to 151°F

Spring Case Vent Connection

1 NPT: Types CSB700 and CSB720
1/2 NPT: Type CSB750

Type VSX8 Slam-Shut Device Maximum Inlet
Pressure (P

umax

(1)

)

:

Differential Strength (DS): 16 bar / 232 psig
Integral Strength (IS): 6.0 bar / 87 psig

Approximate Weights

with Threaded body

Type CSB700/CSB720: 13 kg / 29 lbs
Type CSB750 : 14 kg / 31 lbs
Type CSB704/CSB724: 14 kg / 31 lbs
Type CSB754 : 15 kg / 33 lbs

with Flanged body

Add 5.2 kg / 11 lbs to weights listed

Designed, Tested and Evaluated Consistent With:

ANSI B16, ASME BPVC Sec. VIII Div. I, ASTM B117
(Corrosion Resistance), EN334 and EN14382

Directive ATEX Information

See Table 6
For information about ATEX, refer to CSB700 Series
(D103483X012) and VSX4/VSX8 Series
(D103127X012) Instruction Manuals.

1. The pressure/temperature limits in this Installation Guide or any applicable standard limitation should not be exceeded.

2. Standard token relief set values listed in Table 6 are based on -20 to 60°C / -4 to 140°F.

3. Product has passed Emerson Process Management Regulator Technologies, Inc. (Emerson) testing for lockup, relief start-to-discharge and reseal down to -40°.

CSB700 Series

TYPE NUMBER

C S B 7

0 Low Pressure Applications (Outlet Pressure: 9 to 110 mbar / 3.6 in. w.c. to 1.60 psig)

2 Medium Pressure Applications (Outlet Pressure: 61 to 780 mbar / 0.9 to 11.3 psig)

5 High Pressure Applications (Outlet Pressure: 0.7 to 4 bar / 10.2 to 58 psig)

0 Without Overpressure Protection Module

0F

4 With Type VSX8 Slam-shut Module

4F

E External

Table 1. Available Congurations

OPTION

PRESSURE CONSTRUCTION

OVERPRESSURE PROTECTION

Without Overpressure Protection Module (Outlet Pressure: 9 to 110 mbar / 3.6 in. w.c. to 1.60 psig and 270 to 325 mbar /

3.9 to 4.7 psig only)

With Type VSX8 Slam-shut Module

3.9 to 4.7 psig only)

(2)

(2

(1)

(1)

(Outlet Pressure: 9 to 110 mbar / 3.6 in. w.c. to 1.60 psig and 270 to 325 mbar /

PRESSURE REGISTRATION

RELIEF

N None

T Token Internal Relief

Example: Type number CSB724ET: Type CSB700 regulator constructed for medium pressure applications, with Type VSX8 Slam-shut Module, with

External pressure registration and with Token relief.

1. Reference Instruction Manual D103127X012 for information regarding the Type VSX8 Slam-shut Module.

2. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.

3. Token relief not available for outlet pressure above 500 mbar / 8 psig.

(3)

(2)

(2)

(2)

(1)

MAXIMUM OPERATING INLET PRESSURE

P

UMAX

TYPE

Table 2. Integral Strength (IS) Pressure Ratings

MAXIMUM ALLOWABLE PRESSURE /

MAXIMUM EMERGENCY INLET PRESSURE

bar psig bar psig

P

S

CSB700 and CSB704

CSB700F and CSB704F

CSB720 and CSB724

4.0 58.0 4.0 58.0

CSB720F and CSB724F

CSB750 and CSB754 5.0 72.5 5.0 72.5

1. Applicable only to applications where the inlet rating cannot exceed the outlet rating.

2. For the Integral Strength (IS version), the maximum value of P

and P

should be similar to the PSD used for the Differential Strength (DS) version.

s

umax

Table 3. Differential Strength (DS) Pressure Ratings and Flow and Sizing Coefcients

SPECIFIC MAXIMUM

ALLOWABLE PRESSURE /

TYPE

CSB700 and

CSB704

CSB700F and

CSB704F

CSB720F and

CSB724F

CSB720 and

CSB724

CSB750 and

CSB754

MAXIMUM EMERGENCY

OUTLET PRESSURE

P

SD

bar psig bar psig bar psig mm In. C

4.0 58.0

5.0 72.5 20.0 290 16 232

1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.

MAXIMUM ALLOWABLE PRESSURE /

MAXIMUM EMERGENCY INLET

PRESSURE

P

S

OPERATING INLET

12.0 174

20.0 290 16 232

MAXIMUM

PRESSURE

P

UMAX

10 145

6 87

ORIFICE SIZE

WIDE-OPEN FLOW

COEFFICIENT

C

g

v

35 1-3/8 1080 27.7 39 0.96 0.89 0.66

(2)

IEC SIZING

COEFFICIENT

C1XTFDF

L

2

CSB700 Series

Table 4. Body Sizes, Material, End Connections and Cold Working Pressure Ratings

BODY MATERIAL

Ductile Iron

WCC Steel

BODY SIZE

DN NPS mm In. bar psig

40 1-1/2
50 2
40 1-1/2
50 2
50 2
50 2 254 10.0
50 2 267 10.5
50 2
50 2 200 7.87
50 2 254 10.0
40 1-1/2 PN 16 Slip-On 222 8.74
40 1-1/2
50 2
40 1-1/2
50 2
50 2 CL150 RF
50 2 PN 10/16
50 2 PN 10/16 191 7.52

END CONNECTION

NPT

Rp

CL125 FF/CL150 FF

PN 10/16

NPT

Rp

Table 5. CSB700 Series Primary Regulator Outlet Pressure Ranges

TYPE

CSB700, CSB704,

CSB700F and CSB704F

CSB720 and CSB724

CSB720F and CSB724F 270 to 325 3.9 to 4.7 ERAA11747A0 Black with White Stripe 6.5 0.256 235 9.25

CSB750 and CSB754

OPERATING PRESSURE RANGES, W

mbar psig mm In. mm In.

9 to 14 3.6 to 5.6 in. w.c. GE30336X012 Silver 3.00 0.118 224 8.82

13 to 24 5.2 to 9.6 in. w.c. ERSA01138A0 Red 3.50 0.138 264 10.4

22 to 39 8.8 to 15.7 in. w.c. GE30338X012 Black Stripe 4.32 0.170 172 6.78

32 to 50 12.8 to 20.1 in. w.c. GE30339X012 Purple 4.34 0.171 187 7.35

42 to 70 16.9 to 28.1 in. w.c. GE30340X012 White Stripe 4.62 0.182 188 7.40

61 to 110 0.9 to 1.6 ERSA03656A0 Dark Green 4.88 0.192 224 8.82

61 to 110 0.9 to 1.6 ERSA03656A0 Dark Green 4.88 0.192 224 8.82

105 to 220 1.5 to 3.2 ERSA03657A0 Blue 5.94 0.234 217 8.53

210 to 380 3.1 to 5.5 GG06247X012 Black 8.00 0.315 206 8.13

320 to 570 4.6 to 8.3 ERSA01582A0 Red with White Stripe 8.71 0.343 177 6.97

510 to 780 7.4 to 11.3 ERSA05055A0 Blue with White Stripe 10 0.394 181 7.13

0.7 to 1.19 bar 10.2 to 17.3 GE30345X012 Purple Stripe 9.00 0.354 225 8.87

1.05 to 2.7 bar 15.2 to 39.2 GE30346X012 Brown 11.0 0.433 226 8.88

2.3 to 3.25 bar 33.4 to 47.1 ERSA01125A0 Grey with Red Stripe 12.6 0.496 225 8.87

3.1 to 4 bar 45 to 58 ERSA01126A0 Grey with Orange Stripe 13.7 0.539 226 8.89

d

PART NUMBER

FACE-TO-FACE DIMENSION BODY PRESSURE RATING

155 6.10

191 7.52

191 7.52

155 6.10

254 20.0

SPRING

COLOR

SPRING WIRE

DIAMETER

17.2 250

16.0 232

20.0 290

16.0 232

SPRING FREE LENGTH

TYPE CLASSIFICATION ATEX ASSEMBLIES ATEX LABELLING

CSB704, CSB704F,CSB724,
CSB724, CSB724F, CSB754

version with VSX8

CSB704, CSB704F, CSB724,

CSB724, CSB724F and CSB754

with limit switch

Table 6. Directive ATEX Information

Non-electrical equipment Not falling under the ATEX Directive 2014/34/EU No

Non-electric equipment equipped with an

electrical device falling under the scope of the

ATEX Directive 2014/34/EU

Constitutes an assembly according to the

ATEX Directive 2014/34/EU

2 G T

3

CSB700 Series

REGULATOR SLAM SHUT DEVICE

Type

Typical

Setpoint

Spring
Range

psig psig psig min max psig psig psig

5.2 to

9.6 in. w.c.

8.8 to

15.7 in. w.c.

12.8 to

20.0 in. w.c.

24 in. w.c. to

1.6 psig

1.5 to 3.2

CSB704F

CSB724F

7 in. w.c.

11 in. w.c.

14 in. w.c.

1

2
3 3.8 125 140 0.6 5
5 3.1 to 5.5 6.2 125 140 0.7 3.2 to 11.0 7

10 7.4 to 11.3 5.8 to 13.3

5.2 to

9.6 in. w.c.

8.8 to

15.7 in. w.c.

12.8 to

20.0 in. w.c.
24 in. w.c. to

1.6 psig

1.5 to 3.2

CSB704

CSB724

7 in. w.c.

11 in. w.c.

14 in. w.c.

1

2
3 3.8 125 140 0.6 5

5 3.1 to 5.5 6.2 125 140 0.7 3.2 to 11.0 7
10 7.4 to 11.3 5.8 to 13.3
15 10.2 to 17.3

CSB754

20

15.2 to 39.2 13.1 to 43.5

30 35
40 33.4 to 47.1 23.2 to 72.5

- Gray areas indicate that token relief is not available above 8 psig setpoint.

1. Max OPSO setpoint truncated to reect maximum outlet pressure for spring range.

Type
(Maximum
Operating

Inlet)

VSX8L

(125 psi)

VSX8L

(232 psi)

VSX8H

(232 psi)

Token

Relief Set

Relief Range Shown as a %

12 in. w.c. 170 215 3.2 in. w.c. 12 to 24 in. w.c. 22 in. w.c.

17 in. w.c. 150 160 4 in. w.c. 16 in. w.c. to 1.6 psig 25 in. w.c.

21 in. w.c. 150 160 4 in. w.c. 24 in. w.c. to 2.8 psig 1.1

1.4 140 150 6.4 in. w.c. 1.4 to 4.1 2

2.6 130 140 0.6

12 in. w.c. 170 215 3.2 in. w.c. 12 to 24 in. w.c. 22 in. w.c.

17 in. w.c. 150 160 4 in. w.c. 16 in. w.c. to 1.6 psig 25 in. w.c.

21 in. w.c. 150 160 4 in. w.c. 24 in. w.c. to 2.8 psig 1.1

1.4 140 150 6.4 in. w.c. 1.4 to 4.1 2

2.6 130 140 0.6

Table 7b. European Overpressure Shut-off OPSO Only Ranges

Table 7a. North American Overpressure Shut-off OPSO Only Ranges

REGULATOR SLAM SHUT DEVICE

Type

Typical

Setpoint

Spring
Range

mbar mbar mbar min max mbar mbar mbar

10 9 to 14

15 13 to 24 26 170 215 6

CSB704F

20
21 36 170 215 4
27
30 45 150 160 10 60

13 to 24

22 to 39

35 22 to 39 53 150 160 10 40 to 110 70
50
60 84 140 158 16 105

42 to 70

75 61 to 110 98 130 140 20 60 to 193 130
10 9 to 14
15 13 to 24 26 170 215 10 50

CSB704

20
21 36 170 215 10 55
27
30 45 150 160 10 60

13 to 24

22 to 39

35 22 to 39 53 150 160 10 40 to 110 70
50
60 84 140 158 16 105

42 to 70

75 61 to 110 98 130 140 20 60 to 193 130
100 61 to 110
120
150 195 130 140 40 250

105 to 220

160 105 to 220 208 130 140 40 95 to 280 265

CSB724

200 105 to 220 250 125 140 50 138 to 500 330
300 210 to 380 375 125 140 50 138 to 500 450
500 320 to 570 625 125 140 60 221 to 760 700
600
750 400 to 1100

510 to 780

CSB724F 300 270 to 325

1000 700 to 1190

CSB754

1200
1500 1900
2000 1050 to 2700 1600 to 4000

1050 to 2700 900 to 3000

3000 2300 to 3250
4000 3100 to 4000 4400

- Gray areas indicate that token relief is not available above 500 mbar setpoint.

1. Max OPSO setpoint truncated to reect maximum outlet pressure for spring range.

4

Type

(Maximum

Operating

Inlet)

VSX8L

(8.6 bar)

VSX8L

(16 bar)

VSX8L

(16 bar)

VSX8L

(8.6 bar)

VSX8H

(16 bar)

Token

Relief Set

Relief Range Shown as a %

17 170 215 8

34 170 215 6

41 150 160 5

70 140 158 16

17 170 215 8

34 170 215 10

41 150 160 10

70 140 158 16

130 130 140 20 60 to 193 170
156 130 140 40

of Regulator Setpoint

of Regulator Setpoint

Required Difference Between

Token Relief and OPSO

Required Difference Between

Token Relief and OPSO

Over Pressure Shut-off

(OPSO) Set Range

2.0 to 7.3

(1)

2.0 to 7.3

(1)

13.1 to 39.1

Over Pressure Shut-off

(OPSO) Set Range

(1)

(1)

30 to 60 32

30 to 60 40

30 to 60

60 to 193

30 to 60

30 to 60

30 to 60

60 to 193

95 to 280

(1)

400 to 915

(1)

138 to 500 450

400 to 1450 1320

(1)

1600 to 5000

(1)

Factory Set

OPSO

3.5

12

3.5

12
19
25

45

Factory Set

OPSO

46

90

40

55

55

90

205

840

1050

1600

2400
3400

CSB700 Series

REGULATOR SLAM SHUT DEVICE

Typical

Setpoint

Type

psig psig psig min max psig psig psig psig psig psig

7 in. w.c. 5.2 to 9.6 in. w.c.

CSB704F

CSB724

CSB704

CSB724

CSB754

11 in. w.c. 8.8 to 15.7 in. w.c. 17 in. w.c. 150 160 4 in. w.c. 6 in. w.c.

14 in. w.c. 12.8 to 20.0 in. w.c. 21 in. wc 150 160 4 in. w.c.

1 24.0 in. w.c. to 1.6 psig 1.4 140 150 6.4 in. w.c.
2
3 3.8 125 140 0.6 1.5 to 7.3 2.6 to 5.6 2 4.6 to 7.6 5
5 3.1 to 5.5 6.2 125 140 0.7 1.5 to 7.3 3.5 to 8.2 3 5.6 to 8.6 7

10 7.4 to 11.3 1.5 to 7.3 3.5 to 8.2 5 8.5 to 13.2 12

7 in. w.c. 5.2 to 9.6 in. w.c.

11 in. w.c. 8.8 to 15.7 in. w.c. 17 in. w.c. 150 160 4 in. w.c. 6 in. w.c.

14 in. w.c. 12.8 to 20.0 in. w.c. 21 in. w.c. 150 160 4 in. w.c.

1 24.0 in. w.c. to 1.6 psig 1.4 140 150 6.4 in. w.c.
2
3 3.8 125 140 0.6

5 3.1 to 5.5 6.2 125 140 0.7 3 5.6 to 8.6 7
10 7.4 to 11.3 3.5 to 8.2 5 8.5 to 13.2 12
15 10.2 to 17.3 1.5 to 10.9 6.7 to 13.5 7 13.7 to 20.5 19
20
30
40 33.4 to 55.1 20 38.1 to 53.4 45

- Gray areas indicate that token relief is not available above 8 psig setpoint.

Spring Range

1.5 to 3.2

1.5 to 3.2

15.2 to 39.2

Type

(Maximum

Operating

Inlet)

VSX8L

(125 psi)

VSX8L

(232 psi)

VSX8H

(232 psi)

Relief Set

12 in. w.c. 170 215 3.2 in. w.c.

12 in. w.c. 170 215 3.2 in. w.c.

Token

2.6 130 140 0.6 1 2.2 to 4.2 3.5

2.6 130 140 0.6 1 2.2 to 4.2 3.5

Relief Range Shown

as a % of Regulator

Setpoint

Required

Difference

Between

Token

Relief and

OPSO

UPSO OPSO Factory Set

Set Range

3 to 12 in. w.c. 16 to 29 in. w.c.

4 in. w.c. to

1.1 psig

10 in. w.c. to

2.3 psig

3 to 12 in. w.c. 18 to 30 in. w.c.

4 in. w.c. to

1.1 psig

10 in. w.c. to

2.3 psig

1.5 to 7.3

7.3 to 29.0

Shut-off (OPSO)
Set Range Over

UPSO Setpoint

20 in. w.c. to

1.8 psig

1.2 to 3.2

25 in. w.c. to

1.9 psig

1.2 to 3.2

2.6 to 5.6

15.2 to 22.8 10 25.2 to 32.8 25

18.1 to 33.4

UPSO

3 in. w.c.

9 in. w.c.

14 in. w.c. 1.7 to 3.7 2

3 in. w.c.

9 in. w.c. 1.2 to 2.2 1.1

14 in. w.c. 1.7 to 3.7 2

Adjusted

19 in. w.c.
to 1.2 psig

22 in. w.c.
to 1.3 psig

21 in. w.c.
to 1.2 psig
24 in. w.c.
to 1.3 psig

2 4.6 to 7.6 5

15 33.1 to 48.4 35

OPSO
Range

1 to

2.1 psig

OPSO

22 in. w.c.

25 in. w.c.

1.1

22 in. w.c.

25 in. w.c.

Table 7d. European Overpressure and Underpressure Shut-off UPSO/OPSO Ranges

Table 7c. North American Overpressure and Underpressure Shut-off UPSO/OPSO Ranges

REGULATOR SLAM SHUT DEVICE

Typical

Type

CSB704F

CSB704

CSB724

CSB724F 300 270 to 325 VSX8L (8.6 bar) 100 to 500 179 to 386 200 379 to 586 400

CSB754 GrDF 1 bar

CSB754

1. Max OPSO setpoint truncated to reect maximum outlet pressure for spring range.

Setpoint

mbar mbar mbar min max mbar mbar mbar mbar mbar mbar

15 13 to 24
20 13 to 24 34 170 215 6 7 to 11 30 to 44 10 40 to 54 40
21 13 to 24 36 170 215 4 7 to 11 30 to 44 10 40 to 54 40
27 22 to 39 41 150 160 5 7 to 15 32 to 44 14 46 to 58 46
30 22 to 39 45 150 160 10 7 to 30 40 to 72 15 55 to 87 60
35 22 to 39 53 150 160 10 7 to 30 40 to 72 18 58 to 90 70
50
60 84 140 158 16 48 to 74 30 78 to 104 100
75 61 to 110 98 130 140 20 25 to 160 83 to 221 38 121 to 259 130
15 13 to 24
20 13 to 24 34 170 215 6 7 to 30 40 to 55 10 50 to 65 55
21 13 to 24 36 170 215 4 7 to 30 40 to 55 10 50 to 65 55
27
30 45 150 160 10 7 to 30 45 to 76 15 60 to 91 60
35 53 150 160 10 7 to 30 45 to 76 18 63 to 94 70
50
60 84 140 158 16 50 to 80 30 80 to 110 100

75
100 130 130 140 20 50 133 to 271 170
120
150 195 130 140 40 75 158 to 296 250
160 208 130 140 40 25 to 160 83 to 221 80 163 to 301 265
200 250 125 140 50
300 210 to 380 375 125 140 50 179 to 386 150 329 to 536 450
500 320 to 570 625 125 140 60 241 to 565 250 491 to 815 700
600
750 100 to 750 460 to 932 375 835 to 1120

1 bar

1.2 bar

1.5 bar 750 1800 to 2320 1900
2 bar

3 bar

- Gray areas indicate that token relief is not available above 500 mbar setpoint.

4 bar 3.1 to 4 bar 500 to 2800 2100 to 3750 2000 4100 to 5000

Spring
Range

42 to 70

22 to 39

42 to 70

61 to 110

105 to 220

510 to 780

0.7 to

1.19 bar

0.7 to

1.19 bar

1.05 to

2.7 bar

2.3 to

3.25 bar

Type

(Maximum

Operating

Inlet)

VSX8L (8.6 bar)

VSX8L (16 bar)

VSX8L (16 bar)

VSX8H (16 bar)

Token

Relief Set

Relief Range Shown

as a % of Regulator

Setpoint

26 170 215 6 7 to 11 30 to 44 8 38 to 52 40

70 140 158 16

26 170 215 6 7 to 30 40 to 55 8 48 to 63 50

41 150 160 5 7 to 30 40 to 55 14 54 to 69 55

70 140 158 16

98 130 140 20

156 130 140 40 60 143 to 281 205

Required

Difference

Between Token

Relief and

OPSO

UPSO OPSO Factory Set

Set Range

10 to 75

10 to 75

25 to 160 83 to 221

100 to 500

100 to 500 241 to 565 300 541 to 865 840

100 to 500 460 to 932 750 1210 to 1682 1210

100 to 500 460 to 932 500 960 to 1432 1320

500 to 2000

Shut-off (OPSO)
Set Range Over

UPSO Setpoint

48 to 74 25 73 to 99 90

50 to 80 25 75 to 105 90

114 to 261 100 214 to 361 330

1050 to 1570

1250 to 2300

UPSO

Adjusted

OPSO Range

38 121 to 259 130

600 1650 to 2170 1650

1000 2250 to 3300 2400

1500 2750 to 3800 3400

OPSO

(1)

1050

(1)

4400

Example: If a non-standard setpoint is needed, see the following example for the proper use of Tables 7a, 7b, 7c and 7d. In this
example, the non-standard regulator setpoint is 140 mbar / 2.0 psig. The minimum factory token relief set pressure is 130% of the
non-standard setpoint. The resulting token relief set pressure is 183 mbar / 2.6 psig. The minimum factory OPSO and UPSO set
pressures are 165% and 50% of the non-standard setpoint, respectively. The resulting minimum settings are: OPSO = 231 mbar /

3.4 psig and UPSO = 70 mbar / 1.0 psig.

5

CSB700 Series

Installation

WARNING

!

Only qualified personnel shall install or
service a regulator. Regulators should
be installed, operated and maintained
in accordance with international and
applicable codes and regulations and
Emerson instructions.

If the regulator vents fluid or a leak develops
in the system, it indicates that service
is required. Failure to take the regulator
out of service immediately may create a
hazardous condition.

Personal injury, equipment damage or
leakage due to escaping gas or bursting of
pressure containing parts may result if this
regulator is overpressured or is installed
where service conditions could exceed the
limits given in the Specifications section or
where conditions exceed any ratings of the
adjacent piping or piping connections.

To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices (as required by the appropriate code,
regulation or standard) to prevent service
conditions from exceeding limits.

Additionally, physical damage to the
regulator could result in personal injury and
property damage due to escaping fluid. To
avoid such injury and damage, install the
regulator in a safe location.

Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been damaged
or has collected foreign material during shipping. For NPT
bodies, apply pipe compound to the external pipe threads.
For flanged bodies, use suitable line gaskets and approved
piping and bolting practices. Install the regulator in any
position desired, unless otherwise specified, but be sure flow
through the body is in the direction indicated by the arrow on
the body.

Note

It is important that the regulator be installed
so that the vent hole in the spring case
is unobstructed at all times. For outdoor
installations, the regulator should be located
away from vehicular traffic and positioned
so that water, ice and other foreign materials
cannot enter the spring case through the
vent. Avoid placing the regulator beneath
eaves or downspouts and be sure it is above
the probable snow level.

Downstream Control Line Installation

WARNING

!

Failure to install a downstream control line
could result in a hazardous condition. Install
downstream control line(s) to the slam-shut
device when construction uses external
pressure registration. The regulator and
slam-shut device will not control pressure
or shut off if a downstream control line is
not installed on those constructions where
external pressure registration is required.

CSB700 Series regulators with an “ET” or “EN” in the type
number use external pressure registration. To communicate
the downstream pressure to the regulator, connect a
downstream control line tubing to the 3/4 NPT control line
tapping in the lower diaphragm casing and connect the other
end of the tubing downstream of the regulator outlet with a
minimum distance of 6 times the outlet pipe diameter.

For all types with external control lines, use tubing with an
inner diameter of 16 mm / 0.63 in. or larger.

Downstream Control Line Installation with
Slam-Shut Device

Refer to Figure 1. When installing the Types CSB704ET,
CSB704FET, CSB704FEN CSB704EN, CSB724ET,
CSB724EN, CSB724FEN and CSB754EN regulators,
connect downstream control line tubing to the lower casing
of the regulator and run the tubing downstream of the
regulator outlet with a minimum distance of 6 times the outlet
pipe diameter. Connect a second, separate downstream
control line tubing to the lower casing of the slam-shut and
run the tubing downstream of the regulator outlet a minimum
distance of 6 times the outlet pipe diameter.

For all types with external control lines, use tubing with an
inner diameter of 16 mm / 0.63 in. or larger for the primary
regulator and 6.4 mm / 0.25 in. or larger for the slam-shut.

Installation with External Overpressure Protection

If the regulator is used in conjunction with a Type 289H
relief valve, it should be installed as shown in Figure 6.
The outside end of the vent line should be protected
with a rainproof assembly. The Type 289H is typically
set 25 mbar / 10 in. w.c. higher than the outlet pressure
setting of the regulator, up to 75 mbar / 30 in. w.c. outlet
pressure. For pressure greater than this, set the Type 289H

0.05 bar / 0.73 psi higher than the outlet pressure setting
of the regulator. Refer to the 289 Series Instruction Manual
(D100280X012) for more information.

6

INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE

PRIMARY REGULATOR

CSB700 Series

UPSTREAM BLOCK
VALV E

SLAM SHUT

M1063

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

Figure 1. Type CSB704 Downstream Control Line Installation

Vent Line Installation

CSB700 Series regulators have a 1 NPT screened vent
opening in the spring case. If necessary to vent escaping
gas away from the regulator, install a remote vent line in
the spring case tapping. Vent piping should be as short
and direct as possible with a minimum number of bends
and elbows. The remote vent line should have the largest
practical diameter. Vent piping on regulators with token relief
must be large enough to vent all relief valve discharge to
atmosphere without excessive backpressure and resulting
excessive pressure in the regulator.

For types with optional token relief, this low capacity relief
is located in the spring case of the primary regulator. If
necessary to vent escaping gas away, install a remote vent
line in the spring case tapping of the primary regulator as
described above. Periodically check all vent openings to be
sure that they are not plugged or obstructed.

For Types CSB700/CSB700F/CSB720/CSB720F, outlet
pressure higher than 0.34 bar / 5.0 psig above the setpoint
may damage internal metallic parts. For Type CSB750,
outlet pressure higher than 1.5 bar / 21.8 psig above the
setpoint may damage internal metallic parts.

Overpressure Protection

The recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure exceeds the
maximum operating outlet pressure rating. Overpressure
protection should also be provided if the regulator inlet
pressure is greater than the safe working pressure of the
downstream equipment.

MINIMUM OF 6 X
OUTLET PIPING
DIAMETER

DOWNSTREAM
BLOCK VALVE

Regulator operation below the maximum pressure limitations
does not preclude the possibility of damage from external
sources or debris in the line. The regulator should be
inspected for damage after any overpressure condition.

Startup

The regulator is factory set at approximately the midpoint
of the spring range or the pressure requested, so an initial
adjustment may be required to give the desired results.
With proper installation completed and relief valves properly
adjusted, slowly open the upstream and downstream
shutoff valves.

Adjustment

Note

For types that include the slam-shut module,
refer to the instruction manual for Type VSX8
slam-shut for adjustment and maintenance
of the slam-shut.

To change the outlet pressure, loosen the hex nut and turn
the adjusting screw clockwise to increase outlet pressure or
counterclockwise to decrease it. Monitor the outlet pressure
with a test gauge during the adjustment. Tighten the hex nut
to maintain the desired setting.

Taking Out of Service (Shutdown)

WARNING

!

To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.

7

CSB700 Series

Parts List

Key Description

1 Spring Case, Aluminum
4 Stabilizer Guide, Stainless steel
5 Stabilizer, Lustran® 648
6 Spring, Stainless steel
7 Retainer Ring, Zinc-plated Carbon steel
8 Stabilizer Screw, Zinc-plated steel (3 required)
9 Lower Casing, Aluminum
10 Lever, BP steel
11 Stem, BP, Aluminum
13 Lever Pin, Carbon steel
14 Lever Screw, Plated-Carbon steel (2 required)
15 Bolt, Steel (8 required)
16 Nut, Steel (6 required for low and medium pressure, 8 required for

high pressure)
17 Union Ring, Aluminum
18 Snap Ring, Zinc-plated steel
19* O-ring, Nitrile (NBR)
20 Stem Guide, Aluminum
21* O-ring, Nitrile (NBR)
22 Pipe plug (not shown), 3/4 NPT, Carbon steel

25 Orice, Aluminum
26 Orice, Aluminum (with slam-shut module)

27* O-ring, Nitrile (NBR) (with slam-shut module)
36* Balanced Port Assembly
36A Stem, Stainless steel
36B Spring Retainer, Zinc-plated steel
36C Spring, Stainless steel
36D Screw, Steel
36E Diaphragm, Nitrile (NBR) and Polyester Fabric
36F Housing
36G Cap, Brass
36H Diaphragm Retainer, Zinc-plated steel
36J Disk, Nitrile (NBR)
36K Disk Retainer
36L* O-ring, Nitrile (NBR)
36M* O-ring, Nitrile (NBR)
36N* O-ring, Nitrile (NBR)
36P* O-ring, Nitrile (NBR)
36Q* O-ring, Nitrile (NBR)
36R Screw, Zinc-plated steel (4 required)
36S Retainer Plate
36V Stabilizer
36W Retaining Ring
36X Connector
36Z Stabilizer Spring
38 Spring, Music Wire
40 Relief Valve Seat Nut, Zinc-plated steel
41 Token Relief Spring, Music Wire
42 Spring Retainer, Zinc-plated steel (with token relief)
43 Spring Seat, Zinc-plated steel
44 Stem, Zinc-plated steel (with token relief)

Key Description

45 Screw, Zinc-plated steel (without token relief)
46 Token Relief Nut, Steel
50 Pusher Post, Aluminum
51 Relief Valve Seat, Aluminum
52* Pusher Post O-ring, Nitrile (NBR)
53 Pin, Stainless steel
54 Roller Pin, Brass
55* Diaphragm Assembly
60* Closing Cap, Aluminum
61 Bonnet, Zinc-plated steel
62* O-ring, Nitrile (NBR)
63 Upper Spring Seat, Zinc-plated Carbon steel
64 Adjusting Bolt, Steel
65* Adjusting Screw, Aluminum
66 Ball, Stainless Steel
67 Hex Nut, Stainless steel
68 Retainer Ring, Steel
70 Body
71 Cap Screw, Steel (4 required)
72 Pipe Plug, 1/4 NPT
74* Blanking Plug, Aluminum (without slam-shut module)
75* O-ring, Nitrile (NBR)
76 Snap Ring Flange (2 required)
77* O-ring, Nitrile (NBR)
80 Screw, Steel (4 required)
82* O-ring, Nitrile (NBR)
90 Nameplate
91 Warning Label
93 Label
94 Overlay Label
95 Grommet, Nitrile (NBR)
96 Rubber Washer, Nitrile (NBR)
100 Lockwire
101 Hub, Zinc-Plated Steel (2 required)
102 Sip-On Flange (2 required)
103 O-ring, Nitrile (NBR) (2 required)
104 Spacer
105 Restriction Plate, Stainless steel
106 Diaphragm Stem O-ring, Nitrile (NBR)
111 Damper Assembly
111A Connector
111B Retainer Ring
111C Spring, Stainless steel
111D Spring Retainer, Zinc-plated steel
111E Plastics Ball
111F Knob, Acrylonitrile Butadiene Styrene (ABS)
112 Stem Cap
113* Sealing Washer
114 Elbow
115 Thrust Washer

*Recommended spare part.
Lustran® is a mark owned by INEOS ABS (USA) Limited.

8

1 NPT

CSB700 Series

3/4 G

Figure 2. CSB700 Series Regulator Vent Line Installation

PROTECT VENT PIPE

WITH RAIN CAP

CSB700 SERIES

REGULATOR

DN 50 / NPS 2 TYPE 289H

RELIEF VALVE

Note: Install with vent pointed vertically down. Otherwise
regulator must be installed under a separate protective cover.

Figure 3. CSB700 Series Regulator Installed with the Vent Pointed Downward and with a Type 289H Relief Valve for High Capacity Relief

9

CSB700 Series

111F

70

111G

17

TORQUE:

34 TO 47 N•m /

25 TO 35 FT-LBS

L2

80

TORQUE:

6 TO 8 N•m /

4 TO 6 FT-LBS

16

INITIAL TORQUE:

15

7 TO 9 N•m /

5 TO 7 FT-LBS

MINIMUM RELAXATION TORQUE:
5 N•m / 4 FT-LBS

TORQUE:

60

12 N•m / 9 FT-LBS MAX

L1

L1

38

46

TORQUE:

14 TO 18 N•m /

10 TO 13 FT-LBS

36

L1

25

82

71

20

42

41

L2

106

40

L2

L1

21

L1

65

L1

L2

62

DAMPER FOR TYPE CSB700F

100

TORQUE:

1.7 TO 3.4 N•m /

8

15 TO 30 IN-LBS

6

DETAIL N

95

111E

111D

111B

111F

111G

4

1

111A

111C

TORQUE:

111A

10 TO 13 N•m /

7 TO 10 FT-LBS

5

7

TORQUE:

1.7 TO 3.4 N•m /

15 TO 30 IN-LBS

96

19

74

GE2791_DM

APPLY LUBRICANT
L1 = ANTI-SEIZE LUBRICANT
L2 = EXTREME LOW-TEMPERATURE BEARING GREASE

1. Lubricants must be selected such that they meet the temperature requirements.

76

(1)

75

77

L2

L2

18

17

L2

L2

Figure 4. CSB700 Series Regulator Assembly

10

9

55

43

50

112

11

13

14

TORQUE:

3.5 TO 4 N•m /

31 TO 35 IN-LBS

54

10

53

L2

68

51

TORQUE:

44

6 TO 7 N•m /

50 TO 60 IN-LBS

52

L2

CSB700 Series

70

17

TORQUE:

34 TO 47 N•m /

25 TO 35 FT-LBS

L2

80

TORQUE:

6 TO 8 N•m /

4 TO 6 FT-LBS

16

15

INITIAL TORQUE:

7 TO 9 N•m /

5 TO 7 FT-LBS
MINIMUM RELAXATION TORQUE:

5 N•m / 4 FT-LBS

L1

TORQUE:

6 TO 7 N•m /

50 TO 60 IN-LBS

L1

25

82

36

71

TORQUE:

14 TO 18 N•m /

10 TO 13 FT-LBS

TORQUE:

12 N•m /

9 FT-LBS MAX

66

63

38

45

40

51

L1

61

64

67

113

L1

L2

62

100

114

TORQUE:

111A

10 TO 13 N•m /

7 TO 10 FT-LBS

111F

111G

111B

111D

111C

111E

1

7674 96

77

L2

GE2791_DM

APPLY LUBRICANT
L1 = ANTI-SEIZE LUBRICANT
L2 = EXTREME LOW-TEMPERATURE BEARING GREASE

1. Lubricants must be selected such that they meet the temperature requirements.

(1)

75

L2

19

L2

Figure 5. CSB750 Series Regulator Assembly

9

55

43

105

L252

112

1118

13

L2

TORQUE:

3.5 TO 4 N•m /

31 TO 35 IN-LBS

10

14

54

L2

53

68

50

11

CSB700 Series

SLAM-SHUT ASSEMBLY

ORIFICE AND SLAM-SHUT ASSEMBLY

GE32791_B

APPLY LUBRICANT
L2 = EXTREME LOW-TEMPERATURE BEARING GREASE

1. Lubricants must be selected such that they meet the temperature requirements.

(1)

80

L2

L2

27

L2

82

25 26

[e-mail]

Fisher.com

Emerson Automation Solutions

Americas

McKinney, Texas 75070 USA
T [phone]

[phone]

Europe
Bologna 40013, Italy
T [phone]

For further information on the current
PED revision see Bulletin: D103053X012
or scan the QR code.

Figure 6. CSB700 Series Slam-Shut Module

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D103483X014 © 2017, 2018 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 07/18.
The Emerson logo is a trademark and service mark of Emerson
Electric Co. All other marks are the property of their prospective owners.
Fisher™ is a mark owned by Fisher Controls International LLC, a
business of Emerson Automation Solutions.

The contents of this publication are presented for information purposes
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not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or
applicability. All sales are governed by our terms and conditions, which
are available on request. We reserve the right to modify or improve the

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Emerson Process Management Regulator Technologies, Inc. does not
assume responsibility for the selection, use or maintenance of any
product. Responsibility for proper selection, use and maintenance of any
Emerson Process Management Regulator Technologies, Inc. product
remains solely with the purchaser.

The distinctive swirl pattern cast into every actuator casing

uniquely identies the regulator as part of the Fisher™ brand

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