Personlized Products Api 5l Grb Steel Pipe - Hydraulic control check valve – Youfa

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In an effort to finest meet up with client's requirements, all of our operations are strictly performed in line with our motto "High High quality, Competitive Rate, Fast Service" for 100*200mm Galvanized Rectangular Tube, Greenhouse Frame Welded Carbon Steel Pipe, Erw Welded Rectangular Steel Pipe, We are very proud of the good reputation from our customers for our products' reliable quality.
Personlized Products Api 5l Grb Steel Pipe - Hydraulic control check valve – Youfa Detail:

check valve details

Material of main parts:

Parts No. Name Material
A Main Ball Cast Iron, Ductile Iron
B Ball Brass
B1 Ball Brass
C Exhaust Valve Brass
D Ball Brass
G Filter Brass
E Throttle Valve Brass
Vertical installation spring assembly (optional) Stainless Steel

check valve working

Size Dn50-300  ( over Dn300, please contact us. )

Pressure setting range: 0.35-5.6 bar ;  1.75-12.25 bar ;  2.10-21 bar

Working principle

When pump starts, the upstream pressure goes up resulting in pressure increase on the lower side of the main valve membrane. The closing system rises gradually and valve opens slowly. The speed of opening can be adjusted by a needle valve C on the pilot system (located on upper branch of pilot system on scheme above)

check valve Working principle

 

 

 

 

When pump stops or in case of backfoot the downstream pressure goes up resulting in a pressure increase on the upper side of the main valve membrane. The closing system drop down gradually and the valve closes slowly. The speed of the closure can be adjusted by a needle valve C on the pilot system (located on below branch of pilot system on scheme above)

The control valve is function as hydraulic check valve, which opens and closes at a controllable and regulated speed of needle valve, reducing sudden jump in pressure

 

 

Application examples

1. Isolation valve of the by-pass

2a-2b Isolation valves of the main water pipe

3. Rubber expansion joints

4. Strainer

5. Air valve

A .SCT 1001 control valve

check valve application examples

Matters needing attention

1. Strainer should be installed in the upstream of the control valve to ensure good water quality.

2. The exhaust valve should be installed in the downstream of the control valve to exhaust the mixed gas in pipeline.

3. When the control valve is mounted horizontally, the maximum inclination angle of the control valve can not be exceed 45°.


Product detail pictures:

Personlized Products Api 5l Grb Steel Pipe - Hydraulic control check valve – Youfa detail pictures

Personlized Products Api 5l Grb Steel Pipe - Hydraulic control check valve – Youfa detail pictures

Personlized Products Api 5l Grb Steel Pipe - Hydraulic control check valve – Youfa detail pictures


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We've got a specialist, effectiveness staff to supply high quality service for our shopper. We always follow the tenet of customer-oriented, details-focused for Personlized Products Api 5l Grb Steel Pipe - Hydraulic control check valve – Youfa, The product will supply to all over the world, such as: Boston, Cancun, Croatia, We are looking forward to establishing a mutually beneficial relationship with you based on our high-quality products, reasonable prices and best service. We hope that our products will bring you a pleasant experience and carry a feeling of beauty.
  • The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
    5 Stars By Liz from Ukraine - 2016.05.21 12:31
    The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Barbara from Japan - 2015.10.01 14:14