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Best Water hammer pre-stop surge valve S550X Company - SHSUOTE Valve  compared with similar products on the market, it has incomparable outstanding advantages in terms of performance, quality, appearance, etc., and enjoys a good reputation in the market.SHSUOTE Valve summarizes the defects of past products, and continuously improves them. The specifications of Best Water hammer pre-stop surge valve S550X Company - SHSUOTE Valve can be customized according to your needs.




          




SCRL-60 Pilot Control
Direct-acting, spring loaded, diaphragm type relief pilot capable of opening and closing within very close pressure limits.

SCRA Pilot Control
Automatically reduces a higher inlet pressure to a lower outlet pressure. Direct acting, spring loaded , diaphragm type - hydraulic or pneumatic operation.




  • Adjustment Ranges

  • High Pressure Pilot (SCRL-60)

  •     0 to 75 pis

  •     20 to 200 psi*

  •     100 to 300 psi

  •     250 to 600 psi

  • Low Pressure Pilot (SCRA)

  •     2 to 30 psi

  •     15 t0 75 psi

  •     30 to 300 psi*

  • *Supplied unless otherwise specified

  • Other ranges available, please consult factory


  • Temperature range

  •     Water: to 180°F


  • Materials

  • Standard Pilot System Materials

  •     Pilot Control: Low Lead Bronze

  •                  Trim: Stainless Steel 303

  •             Rubber: Buna-N® Syntheitc Rubber

  • Optional Pilot System Materials

  •     Pilot systems are available with optional

  •     Aluminum, Stainless Steel or Monel materials.

When Ordering, Specify:
  • 1. Catalog No. 52-01

  • 2. Valve Size

  • 3. Pattern-Globe or Angle

  • 4. Pressure Glass

  • 5. Threaded or Flanged

  • 6. Trim Material

  • 7. Adjustment Range

  • 8. Desired Options

  • 9. When Vertically Installed


DESCRIPTION

The sCR Apressure Reducing control automatically reduces a higher inlet pressure to a lower outlet pressure. It is a direct acting, spring loaded, diaphragm type valve that operates hydraulically or pneumatically and is designed to sense pressure from a remote point. It may be used as a self-contained valve or as a pilot control for a SHSUOTE Co. main valve. It will hold a constant downstream pressure at the remote sensing point within very close pressure limits.


OPERATION

The SCRA Pressure Reducing Control is normally held open by the force of the compression spring above the diaphragm; delivery pressure acts on the underside of the diaphragm. Flow through the valve responds to changes in pressure at the sensing point.


INSTALLATION

The SCRA Pressure Reducing Control may be installed in any position. There is one inlet port and two outlets, for either straight or angle installation. The second outlet port can be used for a gauge connection. A flow arrow is marked on the body casting.


ADJUSTMENT PROCEDURE

The SCRA Pressure Reducing Control can be adjusted to provide a delivery pressure range as specified on the name plate.

Pressure adjustment is made by turning the adjustment screw to vary the spring pressure on the diaphragm. The greater the compression on the spring the higher the pressure setting.

1 .Turn the adjustment screw in (clockwise) to increase delivery pressure.

2 .Turn the adjustment screw out (counter-clockwise) to decrease the delivery pressure .when pressure adjustment is completed, tighten jam nut on adjustment screw and replace protective cap.

Flow rates are not critical during pressure setting. The approximate minimum flow rates given in the table are for the main valve on which the SCRA is installed.


Valve Size1 1/4"-3"4"-8"10"-16"
Minimum Flow GPM15-3050-200300-650


MAINTENANCE

Disassembly 

To disassemble follow the sequence of the  item numbers assigned to

parts in the sectional illustration.

Reassembly

Reassembly  is the reverse of disassembly. Caution must be taken to

avoid having the yoke  (17) drag  on the inlet nozzle of the body (18).

Followthis procedure:

1. Place yoke (17) in body and screw the disc retainer assembly (16) until it bottoms.

2. Install gasket (14) and spring (19) for 2-30 psi range onto plug (13) and screw into body. Disc retainer must enter guide hole in plug as it is assembled. Screw the plug in by hand. Use wrench to tighten only.

3. Place gasket (25) and powertrol body (21) on yoke extension (17)  .Refer to sectional view for proper reassembly of (21) onto body (18).

4. Place lower diaphragm washer (24) ,"o" ring (22) ,diaphragm (12), upper diaphragm washer (11) , and belleville washer (20) on yoke extension (17) . Screw on diaphragm nut (10) finger tight.

5. Place two machine screws (4) through (21) (25) and screw into body (18). Do not include the diaphragm (12) in this operation.

This holds parts aligned for next step,and allows the diaphragm to move and be properly located during tightening of nut (10)

6 .Hold the diaphragm so that screw holes in the diaphragm (12) and powertrol body (21) align. Tighten diaphragm nut (10) with a wrench.

At the final tightening release  the  diaphragm and permit it to rotate approximately 5° to 10° .The diaphragm holes should now be properly

aligned with the body holes

To check for proper alignment proceed as follows:



Rotate diaphragm clockwise and  counterclockwise  as far as possible.

Diaphragm screw holes should  rotate equal distance on either side of

powertrol body screw holes±1/8".

Repeat assembly procedure until diaphragm and yoke are properly aligned. There must be no contact between yoke and body nozzle during its normal opening and closing movement. To simulate this movement hold powertrol body and diaphragm holes aligned. Move yoke to open and closed positions. There must be no evidence of contact or dragging.

7. Remove machine screws per step5.

8. Install spring (9) with spring guide (8) on top of spring.

9. Install cover (5) using eight machine screws(4).

10. Replace adjusting screw (2) and nut (3), then cap(1).





DESCRIPTION

The SCRL Pressure Relief control is a direct acting, spring loaded, diaphragm type relief valve. lt may be used as a self-contained valve or as a pilot control for a SHSUOTE Main valve. It opens an closes within very close pressure limits.


INSTALLATION

The SCRL Pressure Relief Control may be installed in any position. The control body (7) has one inlet and one outlet port with a side pipe plug (24) at each port.These plugs are used for control connections or gauge applications. The inlet in the power unit body (6) is the sensing line port. A flow arrow is marked on the body casting.

 

OPERATION

The SCRL pressure Relief control is normally held closed by the force of the compression spring above the diaphragm; control pressure is applied under the diaphragm. when the controlling pressure exceeds the spring setting, the disc is lifted off its seat, permitting flow through the control.

When controlling pressure drops below spring setting, the spring returns the control to its normally closed position.


ADJUSTMENT PROCEDURE

The SCRL Pressure Relief control can be adjusted to provide a relief setting at any point within the range found on the name plate.

Pressure adjustment is made by turning the adjustment screw (9) to vary the spring pressure on the diaphragm. Turning the adjustment screw clockwise increases the pressure required to open the valve. Counterclockwise decreases the pressure required to open the valve.

When pressure adjustments are complete the jam nut (10) should be tightened and the protective cap (1) replaced. If there is a problem of tampering, lock wire holes have been provided in cap and cover. Wire the cap to cover and secure with lead seal.


DISASSEMBLY

The SCRL Pressure Relief COntrol does not need to be removed form the line for disassembly. Make sure that pressure shut down is accompanied prior to disassembly. Make sure that pressure shutdown is accompanied prior to disassembly. lf the SCRL is removed from the line for disassembly be sure to use a soft jawed vise to hold body during work.

Refer to parts List Drawing for Item Numbers.

1. Remove cap (1), loosen jam nut (10) and turn adjusting screw counter clockwise until spring tension is relieved.

2. Remove the eight screws (4) holding the cover (3) and power unit body (6). Hold the cover and power unit together and place on a suitable work surface.

See NOTE under REASSEMBLY.

3. Remove the cover (3) from power unit body(6  ).The spring (12) and two spring guides (11).

4. Remove nut (13) from stem(19) and slide off the belleville washer (14), the upper diaphragm washer (15) and the diaphragm (16).

5. pull the stem(19) with the disc retainer assembly (21) through the bottom of power unit.The lower diaphragm washer (17) will slide off of stem top.

6. Remove jam nut (23) and disc retainer assembly (21) from stem. use soft jawed pliers or vise to hold stem. The polished surface of stem must not be scored or scratched.

7. The seat (22) need not be removed unless it is damaged. lf removal is necessary use proper size socket wrench and turn counterclockwise

Note: some models have an integral seat in the body (7).


INSPECTION

Inspect all parts for damage, or evidence of cross threading. Check diaphragm and disc retainer assembly for tears, abrasions or other damage. Check all metal parts for damage, corrosion or excessive wear.

 

REPAIR AND REPLACEMENT

Minor nicks and scratches may be polished out using 400 grit wet or dry sandpaper fine emery or crocus cloth. Replace all O-rings and any damaged parts. When ordering replacement parts, be sure to specify parts list item number and all nameplate data.


REASSEMBLY

In general, reassembly is the reverse of disassembly. However, the following steps should be observed:

1. Lubricate the O-Ring (18) with a small amount of a good grade of waterproof grease, (Dow Corning 44 medium grade or equal). Use grease sparingly and install O-ring in powerunit body(6).

2. Install stem (19) in powerunit body (6). Use a rotating motion with minimum pressure to let stem pass through O-ring.

DO Not Cut O-Ring.

3. Install O-ring (5) at top of stem (19). Place lower diaphragm washer (17) on the stem with the serrated side up.Position diaphragm (16) upper diaphragm washer (15) ,with serration down and belleville washer(14) with concave side down.

4. Position powerunit body (6) as shown on parts list drawing (top view).

5. Continue reassembly as outlined in disassembly steps 1 through 3.

Note: Item (4) Screw will have a quantity of 8 for the 0-75 and 20-200 psi design and a quantity of 4 for the 100-300 psi. Item (25) Screw is used on the 100-300 psi design only. Install item (25), before item (4) for preload of item (12) spring. 


American Standard


Note:

1. Test:

1.1 Sealing test

Low pressure: 0.5ba;

High pressure:1 1xPN bar;

1.2 Shell test


15xPN bar

2. Flange dimension can be according to order;

3. If need optional material or others consult factory.


Technical Specification

1. Design & Manufacture: BS EN 1074-5

2. Face to Face Standard: BS EN 558-1

3. Range ends Standard: ASME B16.5

4. Test inspection: BS EN 12266-1

Unit:mm

NPSLDNΦDΦKN-ΦdCH
2”23050152120.64-Φ1919177
21/2”29065178139.74-Φ1922.1202
3”31080190152.44-Φ1923.9219
4”350100229190.58-Φ1923.9243
5”400125254215.98-Φ22.523.9243
6”480150279241.38-Φ22.525.4333
8”600200343298.48-Φ22.528.4428
10”73025040636212-Φ2629.9478
12”850300484431.812-Φ2631.7538
14”980350533476.212-Φ28.534.8550


NoPart NameMaterialStandard
1BodyDuctlie lronGJS 500-7
2SeatStainless SteelAlSI 304/316
3O-ringRubberNBR
40-ringRubberNBR
5BoltStainless SteelA2/A4
6WasherStainless SteelA2/A4
7BonnetDuctile lronGJS 500-7
8BushBronzeC61900
9SpringStainless SteelAISI 304/316
10Caulking NutStainless SteelA4
11DiaphragmNylon Reinforced RubberEPDM +Nylon Fabric
12Fixing holderDuctlie lronGJS 500-7
13Disc HolderDuctlie lronGJS 500-7
14SedRubberEPDM
15Seat RefainerStainless SteelAISI 304/316
16StemStainless SteelAISI 304/316
17PlugStainless SteelAISI 304/316
18ScrewStainless SteelA2/A4
19PlugStainless SteelA2/A4
20WasherStainless SteelA2/A4


Main Valve Globe type Fully bore Flange 2~14”SE-SUOTE-BS-S900-2-14-CL150-V1
Shang hai SHUOTE Valve Co.,Ltd.2023.5.16


European standard


Note:


1. Test:

1.1 Sealing test

Low pressure:0.5bar;

High pressure:1.1xPN bar;

1.2 Shell test

1.5xPN bar

2. Flange dimension can be according to order;

3. lf need optional material or others consult factory.



Technical Specification

1. Design & Manufacture: BS EN 1074-5

2. Face to Face Standard: BS EN 558-1

3. Flange ends Standard: IS07005-2

4. Test Inspection: BS EN 12266-1

Unit:mm

DNLHΦDΦKN-ΦdΦBCf
PN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25
502301771651651651251251254-Φ194-Φ194-Φ19999999191919333
652902021851851851451451454-Φ194-Φ198-Φ19118118118191919333
803102192002002001601601608-Φ198-の198-Φ19132132132191919333
1003502432202202351801801908-Φ198-Φ198-Φ23156156156191919333
1254002432502502702102102208-Φ198-Φ198-Φ28184184184191919333
1504803332852853002402402508-Φ238-Φ238-Φ28211211211191920333
2006004283403403602952953108-Φ2312-Φ2312-Φ28266266274202022333
25073047839540542535035537012-Φ2312-Φ2812-Φ31319319330222224.5333
30085053844546048540041043012-Φ2312-Φ2816-Φ3137037038924.524.527.5444
35098055050552055546047049016-Φ2316-Φ2816-03442942944824.526.530444


No.Part NameMaterialStandard
1BodyDuctlie lronGJS 500-7
2SeatStainless SteelAISI 304/316
30-rinoRubberNBR
4O-ringRubberNBR
5BoltStainless SteelA2/A4
6WasherStainless SteelA2/A4
7BonnetDuctite lronGJS 500-7
8BushBronzeC61900
9SpringStainless SteelAISI 304/316
10
Caulking NutStainless SteelA4
11DiaphragmNylon Reinforced RubberFPDM +Nylon Fabric
12Fixing holderDuctlie lronGJS 500-7
13Disc HolderDuctlie lronGJS 500-7
14SealRubberEPDM
15Seat RetainerStainless SteelAlSI 304/316
16StemStainless SteelAlSI 304/316
17PlugStainless SteelAISI 304/316
18ScrewStainless SteelA2/A4
19PlugStainless SteelA2/A4
20WasherStainless SteelA2/A4


Main Valve Globe type Fully bore Flange DN50-350SE-AFC-BS-A900-50-350-10-V1
Shang hai SHUOTE Valve Co,Ltd2022


Technical Specification

1.Design & Manufacture: BS EN 1074-5

2. Fce to Face Standard: BS EN 558-1

3. Flange ends Standard: IS07005-2

4.Test Inspection: BS EN 12266-1


Note:

1. Test:

1.1 Sealing test

Low pressure:0.Sbar;

High pressure:1.1xPN bar;

1.2 Shell test

1.5xPN bar

2. Flange dimension can be according to order;

3. lf need optional material or others consult factory.

Unit:mm

 DN LHΦDΦKN-ΦdΦBCf
PN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25
4001100710565 58062051552555016-Φ2816-Φ3116-Φ3748048050324.52832444
4501200720615 64067056558560020-Φ2820-Φ3120-Φ3753054854825.53034.5444
5001250822670 71573062065066020-Φ2820-Φ3420-Φ3758260960926.531.536.5444
600145088578084084572577077020-Φ3120-Φ3720-Φ40682720720303642555
700165091089591096084084087524-Φ3124-Φ3724-04379479482032.539.546.5555
8001850126010151025108595095099024-Φ3424-Φ4024-049901901928354351555
9002050126011151125118510501050109028-Φ3428-Φ4028-Φ4910011001102837.546.555.5555
10002250126012301255132011601170121028-Φ3728-Φ4228-Φ56111211121140405060555
12002350163014551485153013801390142032-Φ4032-Φ4932-Φ56132813281350455769555


NoPart NameMaterialStandard
1 BodyDuctlie lronGJS 500-7
2SeatStainless SteelAISI 304/316
3 ScrewStainless SteelA2/A4
4 ScrewStainless SteelA2/A4
5 ScrewStainless SteelA2/A4
6 SpringStainless SteelAISI 304/316
7 BonnetDuctile IrorGJS 500-7
8 BushBronzeC61900
9 0-rincRubberNBR
10Fix WasherBronzeC61900
11DiaphragmNylon Reinforced RubberEPDM +Nylon Fabric
12Eye BoltsCarbon Steel1040
13Fixing HolderDuctlie IronGJS 500-7
14Disc HolderDuctlie IronGJS 500-7
15 SedRubberEPDM
16Sedl RetainerDuctile IronGJS 500-7
17 StemStainless SteelAISI 304/316
18PlugStainless SteelAISI 304/316
19 0-rincRubberNBR
20CapDuctlie lronGJS 500-7
21PlugStainless SteelAISI 304/316
22 ScrewStainless SteelA2/A4
23O-ringRubberNBR
24 ScrewStainless SteelA2/A4


Main Valve Globe type Fully bore Flange DN40O-1200SE-AFC-BS-A900-400-1200-10-V1
Shang hai SHUOTE Valve Co,Ltd2022


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