Emerson Y610A, Y611A, Y612A Instruction Manual

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Page 1

Instruction Manual Form 1477

May 2012

Y610A, Y611A, and Y612A Series

Y610A, Y611A, and Y612A Series Vacuum Service Equipment and Relief Valves

WARNING

Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion,

re and/or chemical contamination

causing property damage and personal injury or death.

Fisher valves must be installed, operated and maintained in accordance with federal, state, and local codes, rules and regulations, and Emerson Process Management Regulator Technologies, Inc. instructions.

If a leak develops or if the outlet continually vents gas, service to the unit may be required. Failure to correct trouble could result in a hazardous

condition. Only a qualied person must

install or service the unit.

vacuum breakers or relief

W1094_1

Figure 1. Type Y610A Vacuum Breaker

Introduction

Scope of the Manual

This manual describes and provides instructions and parts lists for Y610A, Y611A, and Y612A Series vacuum service equipment and relief valves. Instructions and parts lists for other equipment used with these regulators are found in separate manuals.

Product Description

The Y610A, Y611A, and Y612A Series devices are used in a wide variety of vacuum and relief service applications. The Y610A Series devices (Figure 1) are used as vacuum breakers, the Y611A Series devices are used as either vacuum breakers or relief valves, and the Y612A Series devices are used as vacuum regulators, and are described as follows:

www.fisherregulators.com

Type Y610A—Direct-operated vacuum breaker with upward pointing 1 NPT vent connection, and internal registration requiring no downstream control line.

Type Y610AP—Same as Type Y610A except with blocked throat, diaphragm case assembly tapped 1/2 NPT for control line connection, and O-ring stem seal.

Type Y611A—Direct-operated relief valve with upward pointing 1 NPT vent connection, and internal registration requiring no downstream control line.

Type Y611AP—Direct-operated vacuum breaker with blocked throat, 1 NPT screened side vent, diaphragm case assembly tapped 1/2 NPT for control line connection, and O-ring stem seal.

D103116X012

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Y610A, Y611A, and Y612A Series

Specications

The Specications section gives some general Y610A, Y611A, and Y612A Series ratings and other specications. Individual regulator data as it comes from the factory is stamped either on the closing cap or

on a nameplate (Figure 2).

Body Sizes (Inlet x Outlet) and End Connection Style

(2)

Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP: 1-1/2 or 2 NPT,

or NPS 2 / DN 50 CL125 FF or

CL250 RF anged

Pressure Information

(1)

Type Y610A or Y610AP Vacuum Breaker:

See Table 1 Type Y611A or Y611AP Relief Valve: See Table 2 Type Y612A or Y612AP Vacuum Regulator: See Table 3

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

2. DIN (or other) end connections threaded to various national or international thread standards can usually be supplied; consult your local Sales Ofce.

Temperature Capabilities

-20 to 150°F / -29 to 66°C

Pressure Registration

Type Y610A, Y611A, or Y612A: Internal Type Y610AP, Y611AP, or Y612AP: External

Approximate Weights

Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP

With 1-1/2 NPT Body: 25 pounds / 11 kg

With NPS 2 / DN 50 Body:

30 pounds / 14 kg

(1)

Type Y612A—Direct-operated vacuum regulator with

upward pointing 1 NPT vent connection, and internal registration requiring no downstream control line.

Type Y612AP—Same as Type Y612A except with blocked throat, diaphragm case assembly tapped 1/2 NPT for control line connection, and O-ring stem seal.

Installation

WARNING

Personal injury, property damage, equipment damage, or leakage due to escaping gas or bursting of pressurecontaining parts may result if this equipment is overpressured or is installed where service conditions could exceed the limits given in Tables 1 through 3, or where conditions exceed any ratings of the adjacent piping or piping connections. To avoid such injury or damage, provide pressurerelieving or pressure-limiting devices (as required by the appropriate code, regulation, or standard) to prevent service conditions from exceeding those limits.

11A5497_J

Figure 2. Nameplate

Additionally, physical damage to this equipment could cause personal injury or property damage due to escaping gas. To avoid such injury or damage, install the equipment in a safe and well ventilated location.

Equipment operation within ratings does not preclude the possibility of damage from debris in the lines or from external sources. This equipment should be inspected for damage periodically and after any overpressure condition.

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MAXIMUM

ALLOWABLE

TYPES

Y610A and

Y610AP

TYPES

Y611A and

Y611AP

1. Including buildup.

INLET (BODY)

PRESSURE

psig bar psig bar

13 0.90 15 1.0

Table 1. Types Y610A and Y610AP Vacuum Breaker Pressure Information

MAXIMUM

EMERGENCY

OUTLET

(CASING)

PRESSURE

(POSITIVE)

Table 2. Types Y611A and Y611AP Relief Valve Pressure Information

MAXIMUM

ALLOWABLE

INLET (CASING)

PRESSURE

psig bar psig bar

15 1.0

(1)

OPERATING

INLET (RELIEF)

PRESSURE TO

PREVENT PART

DAMAGE

5.1 0.35

5.2 0.36

5.3 0.37

5.5 0.38

6 0.41

6.5 0.45

7.5 0.52

SET PRESSURE

RANGE (VACUUM)

With Spring Case

Above Diaphragm

1 to 3 inches w.c. /

2 to 7 mbar

1.5 to 5 inches w.c. / 4 to 12 mbar

3 to 8 inches w.c. /

7 to 20 mbar

8 to 16 inches w.c. /

20 to 40 mbar

16 to 32 inches w.c. /

40 to 80 mbar

0.25 to 3 psig / 17 to 207 mbar

(1)

With Spring Case

Above Diaphragm

3 to 4 inches w.c. /

7 to 10 mbar

3.75 to 6 inches w.c. / 9 to 15 mbar

5 to 8 inches w.c. /

12 to 20 mbar

7 to 16 inches w.c. /

17 to 40 mbar

10 to 30 inches w.c. /

25 to 75 mbar

0.75 to 1.5 psig / 52 to 103 mbar

1 to 2.5 psig /

69 to 172 mbar

Y610A, Y611A, and Y612A Series

CHANGE IN OUTLET

(CONTROLLED)

PRESSURE

REQUIRED TO

FULLY OPEN

VACUUM BREAKER

0.043 3

0.078 5

0.143 1

0.181 12

0.378 26

1.944 134

BUILDUP OVER INLET

PRESSURE REQUIRED

TO FULLY OPEN

RELIEF VALVE

psig mbar

0.089 6

0.100 7

0.124 9

0.216 15

0.351 24

0.648 45

1.026 71

With Spring Case Below Diaphragm

0 to 2 inches w.c. /

0 to 5 mbar

0.50 to 4 inches w.c. / 1 to 10 mbar

2 to 7 inches w.c. /

5 to 17 mbar

7 to 15 inches w.c. /

17 to 37 mbar

15 to 31 inches w.c. /

37 to 77 mbar

0.25 to 3 psig / 17 to 207 mbar

INLET RELIEF

SET PRESSURE RANGE,

With Spring Case Below Diaphragm

2 to 3 inches w.c. /

5 to 7 mbar

2.75 to 5 inches w.c. /

6.9 to 12 mbar

4 to 7 inches w.c. /

10 to 17 mbar

6 to 15 inches w.c. /

15 to 37 mbar

9 to 29 inches w.c. /

22 to 72 mbar

0.75 to 1.5 psig / 52 to 103 mbar

1 to 2.5 psig /

69 to 172 mbar

MAXIMUM

ALLOWABLE

VACUUM

psig bar psig mbar

5.1 0.35

5.2 0.36

5.3 0.37

5.6 0.39

6.1 0.42

8.0 0.55

CONTROL

SPRING

COLOR CODE,

PART NUMBER

Brown Stripe,

1D892527022

Pink Stripe,

1D765427012

Purple Stripe,

0B019727052

Gray,

1B766627062

Unpainted,

1B883327022

Black,

1A630627022

CONTROL

SPRING

COLOR CODE,

PART NUMBER

Red,

1D892627022

Red,

1D892727012

Black,

1D892727012

White Stripe,

1D893227032

Green,

1D893327032

Blue,

1H975827032

Orange,

1H975927032

Note

If this equipment is shipped mounted on another unit, install that unit according to the appropriate instruction manual.

1. Only personnel qualied through training

and experience should install, operate, and maintain this equipment. For Y610A, Y611A, or Y612A Series equipment that is shipped separately, make sure that there is no damage to or foreign material in it. Also ensure that all tubing and piping have been blown free.

2. This equipment may be installed in any position

as long as the ow through the body is in the

direction indicated by the arrow cast on thebody. If continuous operation is required during inspection or maintenance, install a three-valve bypass around the equipment.

WARNING

This equipment may vent some gas to the atmosphere. In hazardous or

ammable gas service, vented gas

may accumulate and cause personal

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Y610A, Y611A, and Y612A Series

Table 3. Types Y612A and Y612AP Vacuum Regulator Pressure Information

MAXIMUM

ALLOWABLE

INLET

(CASING)

PRESSURE

psig bar psig bar

15 1.03

MAXIMUM

OPERATING

INLET

PRESSURE

TO PREVENT

PART

DAMAGE

5.1 0.35

5.2 0.36

5.3 0.37

5.6 0.39

6.1 0.42

8.0 0.55

SET PRESSURE

RANGE (VACUUM)

With Spring Case

Above Diaphragm

1 to 3 inches w.c. /

2.5 to 7 mbar

1.5 to 5 inches w.c. / 4 to 12 mbar

3 to 8 inches w.c. /

7 to 20 mbar

8 to 16 inches w.c. /

20 to 40 mbar

16 to 32 inches w.c. /

40 to 80 mbar

0.25 to 3 psig / 17 to 207 mbar

With Spring Case Below Diaphragm

0 to 2 inches w.c. /

0 to 5 mbar

0.50 to 4 inches w.c. /

1.2 to 10 mbar

2 to 7 inches w.c. /

5 to 17 mbar

7 to 15 inches w.c. /

17 to 37 mbar

15 to 31 inches w.c. /

37 to 77 mbar

0.25 to 3 psig /

17 to 207 mbar

MAXIMUM

ALLOWABLE

VACUUM

psig bar psig mbar psig mbar psig mbar

5.1 0.35

5.2 0.36

5.3 0.37

5.6 0.39

6.1 0.42

8.0 0.55

CONTROL

SPRING

COLOR

CODE,

PART

NUMBER

Brown Stripe,

1D892527022

Pink Stripe,

1D765427012

Purple Stripe,

0B019727052

Gray,

1B766627062

Unpainted,

1B883327022

Black,

1A630627022

CHANGE IN OUTLET (CONTROLLED)

PRESSURE REQUIRED TO FULLY OPEN

VACUUM REGULATOR

5/8-inch /

16 mm

Port Diameter

0.089 6.1 0.053 3.6 0.076 5.2

0.124 8.6 0.074 5.1 0.106 7.3

0.189 13 0.112 7.7 0.161 11

0.227 16 0.134 9.3 0.193 13

0.405 28 0.240 17 0.345 24

1.944 134 1.152 79 1.656 11 4

1-inch /

25 mm

Port Diameter

1-3/16-inch /

30 mm

Port Diameter

injury, death, or property damage due

to re or explosion. Vent equipment in

hazardous gas service to a remote, safe location away from air intakes or any hazardous area. The vent line or stack opening must be protected against condensation or clogging.

3. A Type Y610A or Y610AP vacuum breaker (Figure 3) is used in applications where an increase in vacuum must be limited. An increase in vacuum (decrease in absolute pressure) is transmitted to the lower side of the diaphragm, opening the disk assembly. This permits atmosphere, or an upstream vacuum that has higher absolute pressure than the downstream vacuum, to enter the system and restore the controlled vacuum to its original pressure setting. A Type Y610A direct-operated vacuum breaker is self-contained and requires no control line. A Type Y610AP vacuum breaker requires a control line from the 1/2 NPT tapping in the diaphragm case assembly (key 20, Figure 4) to a point downstream of the body (key 28, Figure 4).

4. A Type Y611AP vacuum breaker (Figure 3) also is used in applications where an increase in vacuum must be limited. An increase in vacuum (decrease in absolute pressure) is transmitted to the upper side of the diaphragm, opening the disk assembly. This permits atmosphere, or

an upstream vacuum that has higher absolute pressure than the downstream vacuum, to enter the system and restore the controlled vacuum to its original pressure setting. A Type Y611AP vacuum breaker requires a control line from the 1/2 NPT tapping in the spring case assembly (key 23, Figure 5) to a point downstream of the body (key 28, Figure 5).

5. A Type Y611A relief valve (Figure 3) is used to maintain a constant inlet pressure with the outlet

owing to atmosphere or to any system whose

pressure is lower than the pressure at the relief valve inlet. An increase in inlet pressure opens the disk assembly, relieving the excess pressure and restoring the inlet pressure to its original setting. A Type Y611A direct-operated relief valve is self-contained and requires no control line.

6. A Type Y612A or Y612AP vacuum regulator is used to maintain a constant vacuum at the regulator inlet. A decrease in this vacuum (increase in absolute pressure) beyond this value registers underneath the diaphragm and opens the disk. This permits a downstream vacuum of lower absolute pressure than the upstream vacuum to restore the upstream vacuum to its original pressure setting. A Type Y612A (Figure 6) direct-operated vacuum regulator is self-contained and requires no control line. A Type Y612AP vacuum regulator requires a control line from the 1/2 NPT tapping in the diaphragm case assembly to a point upstream of the body.

Page 5

Y610A, Y611A, and Y612A Series

Startup and Adjustment

All Y610A, Y611A, or Y612A Series equipment can be placed in operation by slowly introducing inlet vacuum or pressure. This equipment takes control when downstream vacuum or pressure is established.

This equipment is suitable for the pressure range stamped on the nameplate (key 48, Figure 4, 5, or 6), and listed in Tables 1 through 3. To adjust the pressure setting, remove the closing cap (key 3, Figure 4, 5, or 6), the adjusting screw clockwise to increase the pressure setting or counterclockwise to decrease the setting. Replace the cap after making this adjustment. If desired, the closing cap may be wired to the hole provided in the spring case to discourage tampering.

Shutdown

First close the nearest upstream shut-off valve and then close the nearest downstream shut-off valve to vent the equipment properly. Next, open the vent valve between the equipment and the downstream shut-off valve nearest to it. All pressure between these shut-off valves is released through the open vent valve.

Maintenance

Equipment parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection and replacement of parts depends on the severity of service conditions and upon applicable codes and government regulations.

WARNING

To avoid personal injury, property damage, or equipment damage caused by sudden release of pressure or explosion of accumulated gas, do not attempt any maintenance or disassembly

without rst isolating the regulator from

system pressure and relieving all internal pressure from the equipment.

Body Area

These procedures are for gaining access to the disk assembly, seat ring, and body gasket or diaphragm case O-ring. All pressure must be released from the diaphragm case before the following steps can be performed.

Type Y610A or Y610AP Vacuum Breaker

Key numbers are referenced in Figure 4.

1. To inspect or replace the seat O-ring (key 39) or

seat ring (key 27), loosen the diaphragm case cap screws (key 29), remove the union ring (key 20D), and separate the diaphragm case assembly (key 20) from the body (key 28).

2. Remove the diaphragm case O-ring (key 15) and

inspect the body (key 28).

3. Inspect and replace the seat ring (key 27)

if necessary. Lubricate the threads of the replacement seat ring with a good grade of pipe sealant and tighten using 29 to 37 foot-pounds /

39 to 50 N•m of torque.

4. If it is necessary to replace the seat O-ring (key 39), remove the disk assembly cap screw (key 44), seal washer (key 45), seat O-ring washer (key 32), and seat O-ring from the valve stem (key 13).

5. Install the seat O-ring (key 39), seat O-ring washer

(key 32), and seal washer (key 45) onto the seat O-ring holder (key 31), and secure with the disk assembly cap screw (key 44).

6. If necessary, install a replacement diaphragm

case O-ring (key 15) into the body (key 28).

7. Install the diaphragm case assembly (key 20)

on the body (key 28) and secure with the union ring (key 20D) and diaphragm case cap screws (key 29).

Type Y611A or Y611AP Vacuum Breaker or Relief Valve or Type Y612A or Y612AP Vacuum Regulator

Types Y611A and Y611AP key numbers are referenced in Figure 5 and Types Y612A and Y612AP key numbers are referenced in Figure 6.

1. To inspect and replace the disk assembly (key 25),

remove the body cap (key 38).

2. Unscrew the disk spacer (key 43) and remove

the disk assembly (key 25), disk assembly gasket (key 26), and disk spring (key 41) from the valve stem (key 40).

3. To inspect and replace the seat ring (key 27), loosen the diaphragm case cap screws (key 29), remove the union ring (key 20D), and separate the diaphragm case assembly (key 20) from the body (key 28).

4. Remove the diaphragm case O-ring (key 15) and

inspect the body (key 28).

Page 6

Y610A, Y611A, and Y612A Series

VACUUM

BEING

LIMITED

VACUUM

PUMP

ATMOSPHERE

ONLY

POSITIVE PRESSURE OR ATMOSPHERE, OR A LESSER VACUUM THAN THE VACUUM BEING LIMITED

AJ7856_A A2991_2

Y610A SERIES VACUUM BREAKER

INLET PRESSURE

BEING CONTROLLED

OR PROTECTED

Y610A SERIES VACUUM BREAKER

VACUUM

AJ7853_A A2992_2

Y612A SERIES VACUUM REGULATOR

BEING

LIMITED

Y611A SERIES VACUUM BREAKER

UNAVOIDABLE LEAKAGE

Y611A SERIES VACUUM BREAKER

VACUUM

PUMP

VACUUM

BEING

CONTROLLED

AJ7854_A A2993_2

ATMOSPHERE OR ANY PRESSURE LESS THAN P

Y611A SERIES RELIEF VALVE

AJ7865_A A2994_2

Figure 3. Installation Schematics

HIGHER VACUUM SOURCE

VACUUM PUMP

Y612A SERIES VACUUM REGULATOR

Page 7

Y610A, Y611A, and Y612A Series

5. Inspect and replace the seat ring (key 27) if necessary. Lubricate the threads of the replacement seat ring with a good grade of pipe sealant and tighten using 29 to 37 foot-pounds /

39 to 50 N•m of torque.

6. If necessary, install a replacement diaphragm case O-ring (key 15) into the body (key 28).

7. Install the diaphragm case assembly (key 20)

on the body (key 28) and secure with the union ring (key 20D) and diaphragm case cap screws (key 29).

8. Install the disk spring (key 41), disk assembly

gasket (key 26), and disk assembly (key 25) on the disk stem (key 40) and attach using the disk spacer (key 43).

9. Use a good quality thread sealer when replacing the body cap (key 38) assembly.

Diaphragm and Spring Case Area

These procedures are for gaining access to the control spring, diaphragm assembly, valve stem, and stem O-ring. All pressure must be released from the diaphragm case before these steps can be performed.

Type Y610A or Y610AP Vacuum Breaker

Key numbers are referenced in Figure 4.

1. Remove the closing cap (key 3) and turn the adjusting nut (key 18) counterclockwise until all compression is removed from the control spring (key 1).

2. Remove the spring case cap screws (key 21)

and hex nuts (key 22) and lift off the spring case assembly (key 23). If the only further maintenance is to change the control spring (key 1), skip to step 10.

3. Remove the diaphragm (key 5) and attached parts by tilting it so that the pusher post (key 8) slips off the lever assembly (key 9). To separate the diaphragm (key 5) from the attached parts, unscrew the diaphragm nut (key 37). If the only further maintenance is to replace the diaphragm parts or change the control spring (key 1), skip to step 8.

4. To replace the lever assembly (key 9), remove the machine screws (key 11) and lever pin (key 10).

5. To replace the valve stem (key 13) or stem seal O-ring (key 46) perform Type Y610A or Y610AP body area maintenance procedure step 4 and pull the valve stem out of the stem adaptor (key 60).

6. Grease the replacement stem seal O-ring (key 46) with a good grade of elastomer lubricant and install on the valve stem (key 13). Install the valve stem by pushing it into the stem adaptor (key 60) and perform Type Y610A or Y610AP body area maintenance procedure steps 5 and 6 if necessary.

7. Install the lever assembly (key 9) into the valve

stem (key 13) and secure the lever assembly (key 9) with the lever pin (key 10) and machine screws (key 11).

8. Install the small diaphragm plate gasket (key 7), diaphragm plate (key 24), and diaphragm (key 5) on the pusher post (key 8) and attach with the diaphragm nut (key 37). Tighten using 30 to

45 foot-pounds / 41 to 61 N•m of torque.

9. Install the pusher post (key 8) plus attached diaphragm parts onto the lever assembly (key 9).

10. Install the spring case assembly (key 23) and

control spring (key 1) on the diaphragm case assembly (key 20) so that the vent assembly (key 65, not shown) is correctly oriented, and secure them with the spring case cap screws (key 21) and

hex nuts (key 22) to nger tightness only.

11. Turn the adjusting nut (key 18) clockwise until

there is enough control spring (key 1) force to provide proper slack to the diaphragm (key 5) and attached parts. Using a crisscross pattern,

nish tightening the spring case cap screws

(key 21) and hex nuts (key 22) to 55 to

75 inch-pounds / 6.2 to 8.5 N•m of torque. Then nish turning the adjusting nut (key 18) to the

desired set pressure setting.

12. Install a replacement closing cap gasket (key 35)

if necessary, and then install the closing cap (key 3).

Type Y611A or Y611AP Vacuum Breaker or Relief Valve

Key numbers are referenced in Figure 5.

1. Remove the closing cap (key 3) and turn the

adjusting screw (key 2) counterclockwise until all compression is removed from the control spring (key 1).

2. Remove the spring case cap screws (key 21) and hex nuts (key 22) and lift off the spring case assembly (key 23). If the only further maintenance is to change the control spring (key 1), skip to step 10.

Page 8

Y610A, Y611A, and Y612A Series

3. Remove the diaphragm (key 5) and attached parts by tilting it so that the pusher post (key 8) slips off the lever assembly (key 9). To separate the diaphragm (key 5) from the attached parts, unscrew the diaphragm plate cap screw (key 64). If the only further maintenance is to replace the diaphragm parts or change the control spring (key 1), skip to step 8.

4. To replace the lever assembly (key 9), remove the machine screws (key 11) and lever pin (key 10).

5. To replace the valve stem (key 13) or stem seal O-ring (key 46) pull the valve stem out of the stem adaptor (key 60).

7. Install the lever assembly (key 9) into the valve

stem (key 13) and secure the lever assembly (key 9) with the lever pin (key 10) and machine screws (key 11).

8. Install the small diaphragm plate gasket (key 7), diaphragm plate (key 24), and diaphragm (key 5) on the pusher post (key 8) and attach with the diaphragm plate cap screw (key 64). Tighten using

30 to 45 foot-pounds / 41 to 61 N•m of torque.

9. Install the pusher post (key 8) plus attached diaphragm parts onto the lever assembly (key 9).

10. Install the spring case assembly (key 23) and

control spring (key 1) on the diaphragm case assembly (key 20) so that the vent assembly (key 65, not shown) is correctly oriented, and secure them with the spring case cap screws (key 21) and

hex nuts (key 22) to nger tightness only.

11. Turn the adjusting screw (key 2) clockwise until

there is enough control spring (key 1) force to provide proper slack to the diaphragm (key 5) and attached parts. Using a crisscross pattern, nish tightening the spring case cap screws (key 21) and hex nuts (key 22) to 55 to

75 inch-pounds / 6.2 to 8.5 N•m of torque. Then nish turning the adjusting screw (key 2) to the

desired set pressure setting.

12. Install a replacement closing cap gasket (key 35)

if necessary, and then install the closing cap (key 3).

Type Y612A or Y612AP Vacuum Regulator

Key numbers are referenced in Figure 6.

1. Remove the closing cap (key 3) and turn the adjusting nut (key 18) counterclockwise until all compression is removed from the control spring (key 1).

2. Remove the spring case cap screws (key 21)

and hex nuts (key 22) and lift off the spring case assembly (key 23). If the only further maintenance is to change the control spring (key 1), skip to step 10.

3. Remove the diaphragm (key 5) and attached

parts by tilting it so that the pusher post (key 8) slips off the lever assembly (key 9). To separate the diaphragm (key 5) from the attached parts, unscrew the diaphragm nut (key 37). If the only further maintenance is to replace the diaphragm parts or change the control spring (key 1), skip to step 8.

4. To replace the lever assembly (key 9), remove the

machine screws (key 11) and lever pin (key 10).

5. To replace the valve stem (key 13) or stem seal

O-ring (key 46) pull the valve stem out of the stem adaptor (key 60).

6. Grease the replacement stem seal O-ring

(key 46) with a good grade of elastomer lubricant and install on the valve stem (key 13). Install the valve stem by pushing it into the stem adaptor (key 60).

7. Install the lever assembly (key 9) into the valve stem (key 13) and secure the lever assembly (key 9) with the lever pin (key 10) and machine screws (key 11).

8. Install the small diaphragm plate gasket (key 7),

diaphragm plate (key 24), and diaphragm (key 5) on the pusher post (key 8) and attach with the diaphragm nut (key 37). Tighten using 30 to

45 foot-pounds / 41 to 61 N•m of torque.

9. Install the pusher post (key 8) plus attached

diaphragm parts onto the lever assembly (key 9).

10. Install the spring case assembly (key 23) and

control spring (key 1) on the diaphragm case assembly (key 20) so that the vent assembly (key 65, not shown) is correctly oriented, and secure them with the spring case cap screws (key 21) and

hex nuts (key 22) to nger tightness only.

Page 9

Y610A, Y611A, and Y612A Series

11. Turn the adjusting nut (key 18) clockwise until there is enough control spring (key 1) force to provide proper slack to the diaphragm (key 5) and attached parts. Using a crisscross pattern,

nish tightening the spring case cap screws

(key 21) and hex nuts (key 22) to 55 to

75 inch-pounds / 6.2 to 8.5 N•m of torque. Then nish turning the adjusting nut (key 18) to the

desired set pressure setting.

12. Install a replacement closing cap gasket (key 35) if necessary, and then install the closing cap (key 3).

Parts Ordering

When corresponding with the local Sales Ofce

about this regulator, include the type number and all other pertinent information stamped on the closing cap (key 3) or nameplate (key 48). Specify the eleven-character part number when ordering new parts from the following parts list.

Parts List (Figures 4 through 6)

Key Description Part Number

1 Control Spring, Steel See following table 2 Adjusting Screw Type Y611A or Y611AP, For aluminum 1L928608012 3 Closing Cap Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1L928308012 4 Control Spring Seat Type Y610A, Y610AP, Y612A, or Y612AP, Cast iron 1U226019012 5* Diaphragm, Aluminum Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1K649602052 7* Small Diaphragm Plate Gasket Type Y610A, Y610AP, Y611A, or Y611AP, Aluminum 1L143403022 8 Pusher Post Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1L143311992 9 Lever Assembly, Plated steel Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1H974028992 10 Lever Pin Stainless steel 1H972935032 11 Machine Screw (2 required) Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP, Plated steel 1B420428982 12 Control Spring Seat Steel See following table 13 Stem Assembly Type Y610A, Aluminum 1H9748000A2 Type Y610AP, Aluminum 1L1426000A2 Type Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1L2212000A2 15* Diaphragm Case O-ring, Nitrile (NBR) 1F358106992 18 Adjusting Nut (for Type Y610A, Y610AP, Y612A, or Y612AP only), Brass 1A201914012

*Recommended Spare Part

Key Description Part Number

20 Diaphragm Case Assembly Type Y610A, Y611A, or Y612A, Aluminum 1H9751X0012 Type Y610AP, Y611AP, or Y612AP, Aluminum 1H9751X0022 21 Spring Case Cap Screw, Plated steel Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP (12 required) 1B136324052 22 Hex Nut, Cadmium Plated steel Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP (12 required) 1A309324122 23 Spring Case Assembly Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP, Aluminum 4L142308032 24 Diaphragm Plate See following table 25* Disk Assembly (not used with Type Y610A or Y610AP) Type Y611A, Y611AP, Y612A, or Y612AP, Aluminum disk holder and Nitrile (NBR) disk 1H9739000A2 26* Disk Assembly Gasket (for Type Y611A, Y611AP, Y612A, or Y612AP only), Composition 1F826804022 27* Seat Ring Type Y610A or Y610AP, Aluminum 3/4-inch / 19 mm, port diameter 1H979509022 1-3/6-inch / 30 mm, port diameter 1L220809022 Type Y611A or Y611AP, Aluminum 1-3/6-inch / 30 mm, port diameter 1H980809022 Type Y612A or Y612AP, Aluminum 5/8-inch / 16 mm, port diameter 1H980509022 1-inch / 25 mm, port diameter 1H980709022 1-3/6-inch / 30 mm, port diameter 1H980809022 28 Body Type Y610A or Y610AP Cast iron 1-1/2 NPT 1J190319012 2 NPT 1H974919012

NPS 2 / DN 50, CL125 FF anged 2K184219012

Steel 1-1/2 NPT 1K787922012 2 NPT 1K791222012 Type Y611A, Y611AP, Y612A, or Y612AP Cast iron 1-1/2 NPT 1J190519012 2 NPT 1H974319012

NPS 2 / DN 50, CL125A FF anged 1K184319012

Steel 1-1/2 NPT 1K788022012 2 NPT 1K792222012 29 Diaphragm Case Cap Screw (for Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP only), Plated steel (2 required) 1H974724052 31 Seat O-ring Holder (for Type Y610A or Y610AP only), Aluminum 1L154909012 32 Seat O-ring Washer (for Type Y610A or Y610AP only), Aluminum 1V5121X0012 35* Closing Cap Gasket, Neoprene (CR) Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1N446206992 37 Diaphragm Nut (for Type Y610A, Y610AP, Y612A, or Y612AP only), Aluminum 1A499724122 38 Body Cap Assembly Type Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1R236109022 39* Seat O-ring (for Type Y610A or Y610AP only), Nitrile (NBR) 1F269206992 40 Valve Stem Type Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1H973509082 41 Back Disk Spring Type Y611A, Y611AP, Y612A, or Y612AP 1L303837022 43 Disk Spacer Type Y611A, Y611AP, Y612A, or Y612AP, Aluminum 1H973609012

Page 10

Y610A, Y611A, and Y612A Series

1 54 55

51A1731_A B2048

20D

3548 50 51

SECTION A-A

39 31

45 32

Figure 4. Type Y610AP Vacuum Breaker

SECTION A-A

51A1733_A

23D

20A

20D

PART NOT SHOWN: 20E AS - ANTI-SEIZE LS - LEAD SEAL SP - HOUGHTON STAPUT NO. 14

Figure 5. Type Y611A Relief Valve Assembly

Page 11

Y610A, Y611A, and Y612A Series

51A1737_A

20A

20D

23A

38 40 41 26 25 43

1 54 55

51503548

SECTION A-A

PART NOT SHOWN: 20E AS - ANTI-SEAL LS - LEAD SEAL

TYPES

Y610A and Y610AP

Y611A and Y611AP

Y612A and Y612AP

1. See Tables 1 through 3 for spring ranges.

Color Code Part Number Part Number Part Number Quantity Required Part Number

Brown Stripe

Pink Stripe

Purple Stripe

Gray

Unpainted

Black

Red

Red Black Stripe White Stripe

Green

Blue

Orange

Brown Stripe

Pink Stripe

Purple Stripe

Gray

Unpainted

Black

Figure 6. Type Y612A Vacuum Regulator

Key 1 Control Spring, Steel

Key 12 Control Spring Seat, Steel

Key 24 Diaphragm Plate, Steel

Key 64 Diaphragm Plate Cap Screw, Plated steel

(1)

KEY 1

1D892527022 1D765427012 0B019727052 1B766627062 1B883327022 1A630627022

1D892627022 1D892627022 1D892727012 1D893227032 1D893327032 1H975827032 1H975927032

1D892527022 1D765427012 0B019727052 1B766627062 1B883327022 1A630627022

KEY 12 KEY 24 KEY 64

1A869524092 1A869524092 1A869524092 1A869524092 1A626424092 1A626424092

- - - - - - - - - - -

1A869524092 1A869524092 1A869524092 1A869524092 1A626424092 1A626424092

0B006628982 0B006628982 0B006628982 0B006628982 0B006628982 1A347825022

0B006628982 0B006628982 0B006628982 0B006628982 0B006628982 1A347825022 1A347825022

0B006628982 0B006628982 0B006628982 0B006628982 0B006628982 1A347825022

2 2 2 2 2 2

2 2 2 2 2 2 2

2 2 2 2 2 2

- - - - - - - - - - -

1C473224052 1C473224052 1C473224052 1C473224052 1C473224052 1A667824052 1A667824052

- - - - - - - - - - -

Page 12

Y610A, Y611A, and Y612A Series

Parts List (Figures 4 through 6) (continued)

Key Description Part Number

44 Cap Screw (for Type Y610A or Y610AP only), Aluminum 1E760324052 45 Dyna-Seal Washer (for Type Y610A or Y610AP only), Aluminum 1F990428982 46* Stem Seal O-ring (for Type Y610AP, Y611AP, or Y612AP only), Nitrile (NBR) 1E216306992 50 Flapper Stem Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1H976335022 51 Lower Flapper Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1H976406992 52 Upper Flapper Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1H976506992 53 Flapper Seat (for Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP only), Stainless steel T13609T0012 54 Self Tapping Screw (3 required) Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1H976728982

*Recommended Spare Part

Key Description Part Number

55 Spring (2 required) Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1H976837022 56 Screen Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1E564843122 57 Snap Ring Type Y610A, Y610AP, Y611A, Y611AP, Y612A, or Y612AP 1E564937022 58 Retaining Ring Type Y610AP, Y611AP, or Y612AP 1L142838992 59 O-Ring Type Y610AP, Y611AP, or Y612AP 1L142906992 60 Stem Adaptor Type Y610AP, Y611AP, or Y612AP 1L143109012 64 Diaphragm Plate Cap Screw, Plated steel See table on page 11 65 Type Y602-1 Vent Assembly, Spring Case Up Type Y602-11 Spring Case Down Type Y602-2 66 Stem Type Y610A, Y610AP, Y612A, or Y612AP 1A626314012

Industrial Regulators

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