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S206-PG

Singer Valve 106-PG, A206-PG, 206-PG, S106-PG, S206-PG Installation, Operating And Maintenance Instruction

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MODEL 106/206-PG POWER OPERATED GLOBE VALVE
Sizes 1/2" to 8" (106-PG) 3" to 10" (206-PG)
DESCRIPTION:
This valve is the basic component used for most Singer Model 106/206 Automatic Valves. It is a hydraulically operated valve.
DESCRIPTION OF OPERATION:
The valve opens when the bonnet (area above the diaphragm) is connected to the downstream side of the valve AND a pressure drop of 5 psi (35 kPa) is available across the valve. The valve also opens when the bonnet is vented to atmosphere, regardless of pressure drop, provided that the line pressure is 5 psi (35 kPa) or more.
The valve closes when the inlet pressure is directed to the bonnet.
The valve can be made to modulate by varying the bonnet pressure between inlet pressure and outlet pressure. This is done by the pilot circuit.
In some cases the line media is unsuitable for use in the pilot system. In these circumstances external water pressure can be used in the pilot system. The external pressure must be equal to or higher than the line pressure.
If available pressure drop is less than 5 psi (35 kPa), spring lift and external water pressure must be used (consult factory).
Unless otherwise specified, the valve is assembled with components suitable for water service up to 180 C). For other service conditions, contact your Singer Valve representative.
STORAGE: This valve must be stored indoors, away from direct
sunlight. INSTALLATION: Use washers under nuts when bolting valve flanges
to pipe flanges to protect the Epoxy Coating.
Control valves must be installed in a horizontal pipe with the bonnet up. Smaller valves (6” and smaller) can be installed in a vertical pipe if the order states the orientation. Disassembly is difficult but not impossible in valves installed in vertical pipe.
A stable, non-failing source of pressure is necessary to operate a pilot operated control valve.
Installation, Operating and Maintenance Instructions
Operating fluid must be clean and free of air. Under high velocity conditions the pressure signal,
when the pick-up point is located on the main valve inlet, may be adversely affected. As an example, a relief valve will operate more effectively and control more accurately if the operating pressure and sensing pressure is connected to the header.
Ideally, six pipe diameters of straight pipe is required on the inlet of any control valve but
• Fully open Gate Valve can be installed on the inlet of a valve, provided it is used as an isolating valve and never used in partially open condition.
• A Butterfly Valve with stem horizontal can not installed in the inlet of a control valve unless operating pressure and sensing lines are connected upstream of the butterfly valve, in a location that gives true system pressure.
• A Butterfly Valve with stem vertical can be installed in the inlet of a control valve as long as velocity does not exceed 15 ft/sec. The butterfly valve can not be used for throttling. If problems develop at high flows, operating pressure and possible sensing can be connected upstream of the butterfly valve, in a location that gives true system pressure.
o
F (80o
IOM 224A Page 1 of 2 June 2007
• A control valve can be installed with no straight pipe on the inlet if the operating and sensing lines are connected to a location that gives true system pressure.
The connection point should be made at the pipe centerline to avoid air pick-up at the top of the pipe.
1. It is possible that diaphragms may take a set
after shipping and storage. It is highly recommended that Bonnet and Body Bolts or Nuts be tightened after installation but before pressurizing the valve. If a leak develops after pressurizing, de-pressurize the valve and tighten the bolts or nuts.
2. For most convenient operation and maintenance, line isolation valves should be installed.
3. A suitable bypass should be provided to allow for servicing of the valve without interrupting the flow.
Surrey, BC. Canada. V3W 3H9
12850-87th Avenue
Ph: 604-594-5404
Fx: 604-594-8845
be
Installation (Cont.):
4. Install pressure gauges upstream and/or downstream of valve as appropriate. This will facilitate ease of setting the pilot system.
5. A strainer with a suitable basket should be installed ahead of the valve to protect it from foreign material.
6. Sufficient space should be provided around the valve for disassembly.
7. Flush system of all foreign matter before installing the valve.
8. Check direction of flow (inlet of valve is marked OR an arrow on the side of body indicates flow direction) and install the valve accordingly.
VENT AIR FROM THE BONNET. After installation,
9. when the valve is pressurized, vent air from the bonnet:
a) Valves installed in horizontal piping with bonnet up
(NO LIMIT SWITCH): Sizes up to 2" where pilot connection is to the guide bushing at the center of the valve do not require venting (they vent automatically). Sizes up to 2" with position indicator: use bleed-cock on indicator. Sizes 2-1/2" and larger, loosen pipe plug at the center of the bonnet to bleed air. If equipped with position indicator, use bleed-cock on indicator.
b) Valves installed in horizontal piping with bonnet up
(WITH LIMIT SWITCH): Refer to Drawing A0707A. Use bleed screw (63) to vent air.
c) Valves installed in vertical pipe: The pilot connection
will be to the highest point on the bonnet if the orientation and flow direction were specified on the order. Some sizes vent automatically. Some sizes are provided with a small screw to facilitate bleeding (do not remove completely).
d) Valves that do not have the bleed screw and do not
bleed completely from existing connections must be bled by loosening the bonnet bolts.
SERVICE SUGGESTIONS:
POSSIBLE CAUSE / REMEDY FAILS TO OPEN
1. Insufficient inlet pressure. / Increase pressure
IOM 224A Page 2 of 2 June 2007
Surrey, BC. Canada. V3W 3H9
2. Pressure in the bonnet is not released:
• Isolating valves on pilot lines closed. - Open valves
12850-87th Avenue
Ph: 604-594-5404
Fx: 604-594-8845
www.singervalve.com
• Pilot components not functioning. - Refer to specific instructions on pilot components
• Foreign material in pilot system. - Clear obstruction
FAILS TO CLOSE Lack of pressure in the bonnet due to:
• Pilot components not functioning. - Refer to specific instructions on pilot components.
• Foreign material in pilot system.
• Ruptured diaphragm.
• Obstruction in the valve.
• Worn main valve disc.
PULSATIONS
• Air in the bonnet. - Vent air. Refer to "Installation (9)" above.
• Improper adjustment to pilot components. - Refer to specific instructions on pilot components.
• Valve oversized. A smaller valve in parallel may be required.
MAINTENANCE:
The SINGER Model 106/206-PG requires a minimum of maintenance. All parts are accessible for inspection and repair without removing the valve from the line.
1. Close upstream and downstream isolating gate valves.
2. Disconnect body and bonnet pilot lines.
3. Remove bonnet. If bonnet does not come free readily, it can be pried loose with a small pry-bar.
4. Remove main valve assembly for inspection. Do not remove seat ring unless inspection shows that it is damaged.
5. Replace worn or defective parts and reassemble.
NOTE REGARDING FREEZING:
This valve does not drain completely when inlet and outlet pipes are drained. Where freezing conditions are expected, one of the following must be performed:
• Drain valve and pilot system completely.
• Add suitable anti-freeze to valve and pilot system
(Non-potable water service only).
• Provide insulation and/or heating to keep the valve from freezing.
Material Specifications & Dimensions
Item
Part Name Material Item Part Name Material
1 Body Ductile Iron 2 Bonnet Ductile Iron 3 Seat Ring Stainless Steel 4 Stem Stainless Steel 5 Disc Retainer Brass on 3” & 4”
6 ** Resilient Disc EPDM or Buna-N
7 Inner Valve Cast Iron
8 ** Diaphragm EPDM or Buna-N
9 Clamp Plate Cast Iron 10 Stem Nut Brass 11 Spring Stainless Steel 12 Guide Bushing Brass 13 Stem Cap Ductile Iron
14 ** Seat Ring Seal Buna-N 15 ** Stem Cap Seal Buna-N
Bronze on 6”
Cast Iron on 8” and 10”
206-PG & A206-PG
3”
4”
6”
8”
10”
150F / PN16 150F / PN10, PN16,
PN25, PN40 300F
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
80mm
100mm
150mm
200mm
250mm
A D E C B E F
12”
305mm
15”
381mm
15.63”
397mm
20.12” 511”
21”
533mm
25”
635mm
26”
660mm
24.50”
622mm
25.88”
657mm
3” to 10” (80mm to 250mm) 206-PG
4” to 8” (100mm to 200mm) A206-PG
For Drawing A0712B
Globe Globe & Ang Angle
4”
102mm
4.60”
117mm
5”
127mm
5.50”
140mm
6.25”
159mm
6.75”
171mm
7.50”
191mm
8”
203mm
8.63”
219mm
16 Body Capscrew Stainless Steel 17 % Seat Ring Screw Stainless Steel 18 Stem Cap Capscrew Stainless Steel 19 Φ Bottom Guide Ductile Iron & Bronze 44 % Retaining Washer Stainless Steel
45 ** Diaphragm Seal Buna-N
46 Locating Pin Steel
49 ** Disc Retainer Seal Buna-N
50 Body Washer Stainless Steel 51 Stem Cap washer Stainless Steel
** Recommended spare parts (included in the Rebuild Kit) Φ Bottom guide includes bronze bearing bushing % Not required on size 3”, (One piece seat ring and guide, shown as item 3)
7.50”
191mm
9.62”
244mm
9.62”
244mm
10.50”
267mm
10.50”
267mm
14.12”
359mm
14.12”
359mm
18.63”
473mm
18.63”
473mm
8.19”
208mm
10”
254mm
10”
254mm
12.50”
318mm
12.50”
318mm
16”
406mm
16”
406mm
20”
508mm
20”
508mm
- - -
7.56”
192mm
7.88”
200mm
10.19”
259mm
10.63”
270mm
12.50”
318mm
13”
330mm
- - -
- - -
Surrey, BC. Canada. V3W 3H9
7.75”
197mm
7.75”
197mm
8.82”
224mm
8.82”
224mm
11.30”
287mm
11.30”
287mm
12850-87th Avenue
Ph: 604-594-5404
Fx: 604-594-8845
www.singervalve.com
5.94”
151mm
6.25”
159mm
6.19”
157mm
6.81”
173mm
9”
229mm
9.50”
241mm
Anti-Cavitation (-AC) trim equipped valves are NOT available in Reduced Port 206-PG Valves.
April 2006
MODEL S106/S206-PG POWER OPERATED GLOBE VALVE
Sizes 6” to 16" (S106-PG) 12” to 24" (S206-PG)
Installation, Operating and Maintenance Instructions
DESCRIPTION:
This valve is the basic component used for most Singer Automatic Valves. It is a hydraulically operated valve.
DESCRIPTION OF OPERATION:
The valve opens when the bonnet (area above the diaphragm) is connected to the downstream side of the valve AND a pressure drop of 5 psi (35 kPa) is available across the valve. The valve also opens when the bonnet is vented to atmosphere, regardless of pressure drop, provided that the line pressure is 5 psi (35 kPa) or more.
The valve closes when the inlet pressure is directed to the bonnet.
The valve can be made to modulate by varying the bonnet pressure between inlet pressure and outlet pressure. This is done by the pilot circuit.
In some cases the line media is unsuitable for use in the pilot system. In these circumstances external water pressure can be used in the pilot system. The external pressure must be equal to or higher than the line pressure.
Unless otherwise specified, the valve is assembled with components suitable for water service up to
o
180
F (80o C). For other service conditions, contact
your Singer Valve representative.
STORAGE: This valve must be stored indoors, away from
direct sunlight. INSTALLATION: Use washers under nuts when bolting valve
flanges to pipe flanges to protect the Epoxy Coating.
Control valves must be installed in a horizontal pipe with the bonnet up. Smaller valves (6” and smaller) can be installed in a vertical pipe if the order states the orientation. Disassembly is difficult but not impossible in valves installed in vertical pipe.
A stable, non-failing source of pressure is necessary to operate a pilot operated control valve.
IOM 224C Page 1 of 2 August 2007
Surrey, BC. Canada. V3W 3H9
Operating fluid must be clean and free of air.
12850-87th Avenue
Ph: 604-594-5404
Fx: 604-594-8845
Under high velocity conditions the pressure signal, when the pick-up point is located on the main valve inlet, may be adversely affected. As an example, a relief valve will operate more effectively and control more accurately if the operating pressure and sensing pressure is connected to the header.
Ideally, six pipe diameters of straight pipe is required on the inlet of any control valve but
• Fully open Gate Valve can be installed on the inlet of a valve, provided it is used as an isolating valve and never used in partially open condition.
• A Butterfly Valve with stem horizontal can not
be installed in the inlet of a control valve unless operating pressure and sensing lines are connected upstream of the butterfly valve, in a location that gives true system pressure.
• A Butterfly Valve with stem vertical can be installed in the inlet of a control valve as long as velocity does not exceed 15 ft/sec. The butterfly valve can not be used for throttling. If problems develop at high flows, operating pressure and possible sensing can be connected upstream of the butterfly valve, in a location that gives true system pressure.
• A control valve can be installed with no straight pipe on the inlet if the operating and sensing lines are connected to a location that gives true system pressure.
The connection point should be made at the pipe centerline to avoid air pick-up at the top of the pipe.
1. It is possible that diaphragms may take a set
after shipping and storage. It is highly recommended that Bonnet and Body Bolts or Nuts be tightened after installation but before pressurizing the valve. If a leak develops after pressurizing, de-pressurize the valve and tighten the bolts or nuts.
Revised April 28, 2010
Installation (Cont.):
2. For most convenient operation and maintenance, line isolation valves should be installed.
3. A suitable bypass should be provided to allow for servicing of the valve without interrupting the flow.
4. Install pressure gauges upstream and/or downstream of valve as appropriate. This will facilitate ease of setting the pilot system.
5. A strainer with a suitable basket should be installed ahead of the valve to protect it from foreign material.
6. Sufficient space should be provided around the valve for disassembly.
7. Flush system of all foreign matter before installing the valve.
8. Check direction of flow (inlet of valve is marked OR an arrow on the side of body indicates flow direction) and install the valve accordingly.
9. VENT AIR FROM THE BONNET After ins tallation, when the valve is pressurized, vent air from the bonnet:
• Valves with no Limit Switch: Loosen pipe plug at the centre of the bonnet to bleed air. If equipped with position indicator, use bleed-cock on indicator.
• Valves with Limit Switch: Refer to Drawing A0707A. Use bleed screw (63) to vent air.
POSSIBLE CAUSE / REMEDY FAILS TO OPEN
1. Insufficient inlet pressure. / Increase pressure
2. Pressure in the bonnet is not released:
• Isolating valves on pilot lines closed. - Open valves
• Pilot components not functioning. - Refer to specific instructions on pilot components
• Foreign material in pilot system. - Clear obstruction
SERVICE SUGGESTIONS:
IOM 224C Page 2 of 2 August 2007
Surrey, BC. Canada. V3W 3H9
12850-87th Avenue
www.singervalve.com
FAILS TO CLOSE Lack of pressure in the bonnet due to:
• Pilot components not functioning. - Refer to specific instructions on pilot components.
• Foreign material in pilot system. - Clear obstructions.
• Ruptured diaphragm. - Replace worn parts.
• Obstruction in the valve. - Remove obstructions.
• Worn main valve disc. - Replace disc.
PULSATIONS
• Air in the bonnet. - Vent air. Refer to "Installation (9)" above.
• Improper adjustment to pilot components. - Refer to specific instructions on pilot components.
• Valve oversized. A smaller valve in parallel may be required.
MAINTENANCE:
The SINGER Model S106/S206-PG requires a minimum of maintenance. All parts are accessible for inspection and repair without removing the valve from the line.
1. Close upstream and downstream isolating gate valves.
2. Disconnect body and bonnet pilot lines.
3. Remove bonnet. If bonnet does not come free readily, it can be pried loose with a small pry-bar.
4. Remove inner valve assembly for inspection. Do not remove seat ring unless inspection shows that it is damaged. Be very careful not to damage
the epoxy coating when removing and installing the inner valve assembly.
5. Replace worn or defective parts and reassemble.
NOTE REGARDING FREEZING:
This valve does not drain completely when inlet and outlet pipes are drained. Where freezing conditions are expected, one of the following must be performed:
• Drain valve and pilot system completely.
• Add suitable anti-freeze to valve and pilot system
(Non-potable water service only).
• Provide insulation and/or heating to keep the valve from freezing.
Ph: 604-594-5404
Fx: 604-594-8845
Revised April 28, 2010
Material Specifications & Dimensions
10” to 16” (250mm to 400mm) S106-PG & SA106-PG
12” to 24” (300mm to 600mm) S206-PG
For Drawing A0867C
Item
Part Name Material Item Part Name Material
1. Body Ductile Iron
2. Bonnet Ductile Iron
3. Spring Casing Ductile Iron
6. Bottom Guide Ductile Iron & Stainless Steel
7. Seat Ring Stainless Steel
8. Seat Ring Washers Stainless Steel
9. Stem Stainless Steel
10. Disc Retainer Ductile Iron
11.** Resilient Disc EPDM or Buna-N
12. Inner Valve Ductile Iron
13. Piston Ductile Iron
14. Clamp Plate Ductile Iron
15.** Diaphragm EPDM or Buna-N
16. Stem Nut Stainless Steel
17. Spring Stainless Steel
18. Bonnet Locating Pins Steel
19. Bleed Valve Stainless Steel
20.** Seat Ring Seal Buna-N
21.** Spring Casing Seal Buna-N
22.** Stem Seals Buna-N
23. Bonnet Bolts Stainless Steel
24. Bonnet Washers Stainless Steel
25. Spring Casing Locating Pins Steel
26. Spring Casing Screw Stainless Steel
27. Spring Casing Washers Stainless Steel
28. Seat Ring Screw Stainless Steel
29. Eye Bolt Steel
31. Clamp Plate Screw Stainless Steel
32. Inner Valve Screw Stainless Steel ** Recommended spare parts (included in the Rebuild Kit)
S106-PG & SA106-PG
10”
12”
14”
16”
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
250mm
300mm
350mm
400mm
A D E C B E F
29.75”
756mm
31.12”
790mm
34”
864mm
35.50”
902mm
31”
787mm
32.50”
826mm
41.38”
1051mm
43.50”
1105mm
Globe Globe & Ang Angle
8.56”
217mm
9.56”
243mm
9.50”
241mm
10.25”
260mm
10.50”
267mm
11.50”
292mm
11.75”
298mm
12.75”
324mm
23.31”
592mm
23.31”
592mm
26.75”
679mm
26.75”
679mm
26.80”
681mm
26.80”
681mm
31.40”
798mm
31.40”
798mm
22.13”
562mm
22.13”
562mm
26”
660mm
26”
660mm
26”
660mm
26”
660mm
32”
813mm
32”
813mm
11.50”
292mm
12.19”
310mm
13.75”
349mm
14.50”
368mm
- - -
- - -
18”
457mm
18.81”
478mm
S206-PG
12”
300mm
16”
400mm
18”
450mm
20”
500mm
24”
600mm
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
150F / PN10, PN16
300F / PN25, PN40
A D E C B E F
27.50”
699mm
29”
737mm
36”
914mm
37.63”
956mm
42”
1067mm
43.63”
1108mm
45”
1143mm
46.38”
1178mm
50.50”
1283mm
52.25”
1327mm
Globe Globe & Ang Angle
9.50”
241mm
10.50”
267mm
11.75”
298mm
12.75”
324mm
12.50”
318mm
14”
356mm
13.75”
349mm
15.25”
387mm
16”
406mm
18”
457mm
23.35”
593mm
23.35”
593mm
26.75”
679mm
26.75”
679mm
31.38”
797mm
31.38”
797mm
31.38”
797mm
31.38”
797mm
31.38”
797mm
31.38”
797mm
22.12”
562mm
22.12”
562mm
26”
660mm
26”
660mm
30.31”
770mm
30.31”
770mm
30.50”
775mm
30.50”
775mm
36”
914mm
36”
914mm
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
Surrey, BC. Canada. V3W 3H9
20”
508mm
20”
508mm
23.75”
603mm
23.75”
603mm
28.50”
724mm
28.50”
724mm
12850-87th Avenue
Ph: 604-594-5404
Fx: 604-594-8845
www.singervalve.com
12.50”
318mm
13.19”
335mm
12.50”
318mm
13.25”
337mm
15.69”
399mm
16.50”
419mm
For Anti-Cavitation (-AC) trim equipped valves please see PG-AC spec sheet January 2006
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