Hot Sale for Erw Galvanised Steel Pipe - Hydraulic control check valve – Youfa

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Being supported by an state-of-the-art and skilled IT team, we could supply technical support on pre-sales & after-sales service for Gi Pipe Galvanized, Rectangular Steel Tube, Spiral Steel Pipe, We normally welcome new and old buyers offers us with beneficial tips and proposals for cooperation, let us mature and produce alongside one another, also to lead to our neighborhood and employees!

Hot Sale for Erw Galvanised Steel Pipe - Hydraulic control check valve – Youfa Detail:

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

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)

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

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°.

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Our advantages are reduced prices,dynamic product sales workforce,specialized QC,solid factories,superior quality services for Hot Sale for Erw Galvanised Steel Pipe - Hydraulic control check valve – Youfa, The product will supply to all over the world, such as: Hongkong, South Africa, Kuwait, Taking the core concept of "to be the Responsible". We'll redound up on society for high quality merchandise and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.

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The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.