Ashcroft P Data sheet

Data Sheet

P-Series Explosion Proof Pressure Switches

FEATURES

 Precision SPDT snap-acting micro switch
 Setpoint adjustable from 15-100% of range
 Single or dual adjustable set points
 Fixed or adjustable deadband
 Wide selection of switch elements
 Fixed or adjustable deadband

TYPICAL USES

 Refineries
 Chemical and Petrochemical Plants
 Steel Mills
 Water and Sewage Treatment Plants
 Pumps, Compressors and Turbines
 Boilers and Burners
 Reverse Osmosis Systems and Filters

P-Series

Explosion-Proof Enclosure

P-Series

Explosion-Proof Enclosure
Differential Pressure Switch

SPECIFICATIONS

Set Repeatability
(Accuracy):

Switch Type: SPDT or 2 SPDT with independent setpoints

Setpoint: Single setpoint, fixed deadband

Deadband: Fixed or adjustable deadband
Enclosure Ratings: NEMA 7 & 9, IP66

Enclosure Material: Epoxy coated aluminum
Process Connection: ¼ NPT Female, ½ NPT Female,

Electrical Termination:

APPROVALS

Explosion Proof: UL, CSA

Standard: CRN

±1% of span (Additional setpoint shift of
±1% of range per 50°F from initial setpoint
set at 70°F typical)

Single setpoint, adjustable deadband
Dual independent setpoints, fixed deadband

¼ NPT Female and ½ NPT Male Combination

¾ NPT Female

CLASS I DIV 1 GROUPS B, C, & D
CLASS II DIV 1 GROUPS E, F, & G

KEY BENEFITS

• Epoxy-coated aluminum enclosures provide
added protection in harsh environments

• Dual chamber design provides safe setpoint
adjustment even with power connected

• Designed for use in wide range of applications

• Easily configurable to meet your application
requirements

• Hermetically sealed micro switches offer
improved reliability and safety (UL Class I Div II
approval)

WETTED COMPONENTS

Actuator Seal

Buna-N®, Teflon®, Viton®,

316L SS, or Monel

®

Pressure Switches

316L SS or Monel®

for psi ranges

Epoxy coated carbon

steel or 316L SS for

Process Connection:

Differential Switches

Nickel plated brass or

316L SS for psid ranges

Epoxy coated carbon

steel or 316L SS for

IW ranges

IWD ranges

All speci fications are subject to change without notice.

All sales subject to s tandard terms and conditions.

©2019 Ashcroft Inc. pseries_press_switch_ds1.0, Rev. A , 04/19

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Data Sheet

P-Series Explosion Proof Pressure Switches

ORDERING CODE Example: PPSN7 G S 25

Enclosure – Pressure Switch

PPSN7 - Single setpoint, fixed deadband, N7-NEMA 7 & 9, IP66,
explosion proof Div, 1 & 2

PPDN7 - Two independent adjustable setpoints, fixed deadband, N7-NEMA 7 & 9, IP66,

PPAN7 - Single setpoint, adjustable deadband, N7-NEMA 7 & 9, IP66, explosion proof Div, 1 & 2

Enclosure – Differential Pressure Switch

PDSN7 - Single setpoint, fixed deadband, N7-NEMA 7 & 9, IP66, explosion proof Div, 1 & 2

PDDN7 - Two independent adjustable setpoints, fixed deadband, N7-NEMA 7 & 9, IP66,

PDAN7 - Single setpoint, adjustable deadband, N7-NEMA 7 & 9, IP66,
explosion proof Div, 1 & 2

Switch Elements For Single Setpoint with Adjustable Deadband - UL/CSA Listed

H - General purpose, 10A - 125/250 Vac. 1⁄2 A, 125Vdc, 1⁄4 A, 250Vdc

J - Hermetically sealed, general pupose - 11A, - 125/250 Vac, 5A, 30Vdc

Single/Dual Switch Setpoint with Fixed Deadband - UL/CSA Listed

C/CC - Heavy duty ac, 22A - 125/250 Vac

E/EE - Manual reset acutates on decreasing pressure 15A, 125/250 Vac 6A, 130 Vdc (no hazardous approval)

F/FF - Sealed environment proof, 15A - 125/250 Vac. (estimated dc rating - 4A, 28Vdc, not UL listed)

G/GG - General purpose, 15A - 125/250/480 Vac, 1⁄2 A - 125 Vdc, 1⁄4 A - 250 Vdc (not listed at 480 Vac) G

H/HH - General purpose, 10A - 125/250 Vac 10A, Vdc

J/JJ - Hermetically sealed switch, general purpose, 11A, 125/250 Vac, 5A, 30 Vdc

K/KK - Narrow deadband, 15A - 125/250 Vac. (estimated dc rating, 0.4A, 120 Vdc, not UL listed)

L/LL - Hermetically sealed switch, gold contacts, 1A - 125 Vac

M/MM - Low level (gold) contacts, 1A - 125 Vac

P/PP - Hermetically sealed AC - 5A, 125/250 Vac. (estimated dc rating - 2.5A, 28Vdc, not UL listed)

S/SS - Heavy duty dc, 10A - 125 Vac or dc, 1⁄8 HP - 125 Vac or dc.

U/UU - Manual reset actuates on increasing pressure 15A, 125/250 Vac, 6A, 130Vdc (no hazardous approval)

Y/YY - High temperature 300°F (148°C) ambient, 15A, 125/250 Vac

W/WW - Ammonia service - 5A, 125/250 Vac, 6A, 30 Vdc

Actuator Seal

B - Buna-N®-20°F to 150°F 0°F to 150°F

V - Viton

T - Teflon®-20°F to 150°F 0°F to 150°F

S - 316L SS -20°F to 150°F 20°F to 300°F

P - Monel®-20°F to 150°F 20°F to 300°F

Process Connections

25- 1⁄4 NPT Female 25

06- 1⁄4 NPT Female and 1⁄2 NPT Male combination

07- 1⁄2 NPT Female

Options - Select from Table 4 on page 4 (If choosing an option(s) must include an “X’’) X _ _

6B - Cleaned for oxygen service 6B

Pressure Range (select from pressure range tables on page 3)

100# - 100 psi 100#

explosion proof Div, 1 & 2

explosion proof Div, 1 & 2

Temperature Limits

Material Ambient Process

®

-20°F to 150°F 20°F to 300°F

Not available in vacuum, & inches of water ranges or
pressures above 1,000 psi

Not available in vacuum, & inches of water ranges or
pressures above 1,000 psi

PPSN7

S

X6B

100#

All speci fications are subject to change without notice.

All sales subject to s tandard terms and conditions.

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Data Sheet

P-Series Explosion Proof Pressure Switches

TABLE 1 - PRESSURE/VACUUM RANGES Approximate Deadband Switch Element for Buna-N

See multiplier TABLE 3 for additional material multipliers

Switch Element

Vacuum

Nominal Ranges

Overpressure

Ratings

Proof

Minimum

psi

Burst psi

PPA PPS PPD

J, H G J, H K, F P GG JJ, HH KK, FF PP

®

Diaphragm

30IMV –760mmHg -100 kPa 250 400 7-26 3-5 3-6.5 1-2 1-2.5 3-5 4-6.5 1-2 1-2.5

Compound

30IMV/

Pressure

15#

–760mmHg/

1.0 kg/cm

2

-100 kPa
100 kPa

250 400

10-25

4-13

3-5
1-2

4-6

1-3.5

1-2

0.5-1

1-2.5

0.5-1.2

3-5
2-4

2.5-4.5

1.3

1-2

0.5-1

0.5-1.=2

30IW 750mmH2O 7.5 kPa 20 35 4-27 1.5-3.5 2-5 0.5-1 0.5-2 1.5-3.5 2-5 0.5-1 0.5-2

60IW 1,500mmH2O 15 kPa 20 35 5-54 1.5-3.5 2.5-5 0.5-1.3 1-2 1.5-3.5 2.5-5 0.5-1.3 1-2

100IW 2,500mmH2O 25 kPa 20 35 8.5-90 4-6 4-8.5 1-2 1-3 4-7 4-8.5 1-2 1-3

150IW 3,750mmH2O 37 kPa 20 35 18-135 5.0-11 10-18 1.5-3 2-6 8-14 10-18 1.5-3 2-6

15# 1.0 kg/cm2100 kPa 500 1,500 2.5-13 1-2 1-3 0.5-1 0.5-1.2 1-2 1-3 0.5-1 0.5-1.2

30# 2.0 kg/cm2200 kPa 500 1,500 3-26 1-2.5 2-4.5 0.5-1.5 0.5-1.5 1-2.5 2-4.5 0.5-1.5 0.5-1.5

60# 4.0 kg/cm2400 kPa 500 1,500 5-54 2-4 4-7 1-2 1-2.5 2-4 4-7 1-2 1-2.5

100# 7.0 kg/cm2700 kPa 1,000 3,000 10-90 5-7 5-10 1-2.5 2-4 5-7 5-10 1-2.5 2-4

200# 14 kg/cm21,400 kPa 1,000 3,000 20-180 10-15 10-18 1-4 5-8 10-20 15-35 3-6 5-8

400# 28 kg/cm22,800 kPa 2,400 3,000 45-360 16-30 16-45 4-8 5-15 16-30 16-45 4-8 5-15

600# 42 kg/cm24,200 kPa 2,400 3,000 75-540 16-50 20-75 5-15 6-25 16-50 20-75 5-15 6-25

1000# 70 kg/cm² 7,000 kPa 12,000 14,000 160-900 75-130 50-160 7-30 10-85 75-130 50-160 7-30 10-85

2000# 140 kg/cm² 14,000 kPa 12,000 14,000 350-1,800 150-200 150-350 20-50 25-110 15-200 150-350 20-50 25-110

3000# 210 kg/cm221,000 kPa 12,000 14,000 400-2,600 180-250 180-400 30-70 50-250 180-250 180-400 30-70 50-250

TABLE 2 - DIFFERENTIAL PRESSURE RANGES Approximate Deadband Switch Element for Buna-N

See multiplier TABLE 3 for additional material multipliers

Switch Element

Nominal Ranges

Differential Pressure

Overpressure

Ratings

Static

psi

Minimum
Proof psi

PDA PDS PDD

J, H G J, H K, F P GG JJ, HH KK, FF PP

®

Diaphragm

30IWD –760mmHg 5.4 21.6 5.5-27 3-5 4-6.5 0.5-1 0.5-2 3-5 4-6.5 0.5-1 0.5-2

60IWD 1,500mmH2O 5.4 21.6 5.5-54 3-5 4.5-6.5 0.5-1.3 1-2 3.5 4-6.5 0.6-1.3 1-2

100IWD 2,500mmH2O 5.4 21.6 8.5-90 4-6 4.0-8.5 1-2 1-3 4-7 4-8.5 1-2 1-3

150IWD 3,750mmH2O 5.4 21.6 18-135 5-11 10-18 1.5-3 2-6 8-12 10-18 1.5-3 2-6

30#D 1.0 kg/cm² 500 1,500 2.5-13 1-2 1-3 0.5-1 0.5-1.2 1-2 1-3 0.5-1 0.5-1.2

60#D 2.0 kg/cm

100#D 7.0 kg/cm

200#D 14 kg/cm

400#D 28 kg/cm

2

2

2

2

500 2,000 6.5-54 1-2.5 2-4.5 1-1.5 1-1.5 1-2.5 2-4.5 0.5-1.5 0.5-1.5

1,000 4,000 10-90 5-7 5-10 1-2.5 2-4 5-7 5-10 1-2.5 2-4

1,000 4,000 20-180 10-15 10-18 1-4 5-8 10-20 10-18 3-6 5-8

1,000 8,000 45-360 16-30 16-45 4-8 5-15 16-30 16-45 4-8 5-15

TABLE 3 - DEADBAND MULTIPLIER TABLE

Diaphragm Material Multiply Notes

®

Buna-N

®

Viton

®

Teflon

316 SS 1.7

®

Monel

1.0

1.4

1.7

1.7

Multiplier table for additional

diaphragm materials

1-2.5

All speci fications are subject to change without notice.

All sales subject to s tandard terms and conditions.

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Data Sheet

P-Series Explosion Proof Pressure Switches

TABLE 4 - OPTIONS

Pressure

Differential

Pressure

Code Description psi inH2O psid inH2O

Chained cover • • • •

CH

FP Fungus proofing • • • •

Factory adjusted setpoints (Supply static pressure

FS

for D/P switches)

Fire safe actuator

G9

High operating pressure for inH2O ranges

• • • •

•

40 psi Static (Pressure and D ⁄ P)

HX

100 psi Proof (Pressure)

• •

160 psi Proof (D ⁄ P)

JL ¾˝ to ½˝ Reducing bushing • • • •

K3 Terminal blocks • • • •

NH Tagging SS • • • •

PM ¾˝ Sealed conduit connection with 16˝ lead wires • • • •

TA

316 SS pressure connection for H2O ranges

UD 316 SS Pressure Connection for psid ranges •

C8 CSA approval • • • •

6B Cleaned for oxygen service • •

FM FM Approval • • • •

HS High static operating pressure for psi range D/P •

D2 Dual seal rating (must order with XC8 as well) • •

• •

All speci fications are subject to change without notice.

All sales subject to s tandard terms and conditions.

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4.70

4.70

[212]

4.70

[243]

PRESSURE

4.70

7.72

[205]

[196]

Data Sheet

P-Series Explosion Proof Pressure Switches

DIMENSIONS in [ ] are millimeters

For reference only, consult Ashcroft for specific dimensional drawings

PRESSURE SWITCH – PSI RANGES

5.00

8.08

[127]

Ø 0.31 X 4 HOLES

[8]

3.88
[99]

4.75

[121]

5.50

[140]

3/4 NPT
TYP

1.06
[27]

2.30
[58]

0.38
[10]

½ NPT MALE &
¼ NPT FEMALE

DIFFERENTIAL PRESSURE SWITCH –

PSI DIFFERENTIAL RANGES

5.00

[127]

¾ NPT
TYP

1.06
[27]

[119]

Ø 3.90

[99]

¼ NPT PORT

Ø 3.90

[99]

[119]

2.90
[74]

3.06
[78]

2.90
[74]

9.55

PRESSURE SWITCH –

INCHES OF WATER RANGES

5.00

[127]

Ø 0.31 X 4 HOLES

[8]

3.88
[99]

4.75

[121]

5.50

[140]

¾ NPT

TYP

1.06
[27]

2.30
[58]

0.38
[10]

Ø 3.90

[99]

Ø 5.12

[130]

5.32
[135]

[119]

DIFFERENTIAL PRESSURE SWITCH –

INCHES OF WATER RANGES

5.00

[127]

¾ NPT
TYP

1.06
[27]

Ø 3.90

[99]

[119]

2.90
[74]

8.36

[212]

3.06
[78]

¼ NPT PORT

2.90
[74]

2.30
[58]

0.38
[10]

¼ NPT

FEMALE

LOW
PRESSURE

PORT

¼ NPT

FEMALE

HIGH

PORT

Ø 0.31 X 4 HOLES

[8]

L

H

Ø 2.31

[59]

3.9

[99]

4.75

[121]

5.50

[140]

All speci fications are subject to change without notice.

All sales subject to s tandard terms and conditions.

©2019 Ashcroft Inc. pseries_press_switch_ds1.0, Rev. A , 04/19

1.55

[39]

3.06
[78]

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1.48
[38]

Ø 0.31

[8]

X 4 HOLES

3.88
[99]

4.75

[121]

5.50

[140]

2.30
[58]

0.38
[10]

¼ NPT
LOW
PRESSURE
PORT

Ø

[130]

5.12

5.32

[135]

3.06
[78]

¼ NPT
HIGH
PRESSURE
PORT

8.36

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