Double Flanged End Double Disc Check Valve

Double Flanged End Double Disc Check Valve

Advantages

The swing check valve adopts the internal rocker arm rotary opening structure, all the opening and closing parts of the valve are installed inside the valve body, do not penetrate the valve body, except the middle flange part is sealed with sealing gasket or seal ring, the whole has no leakage point, which prevents the possibility of valve leakage.

Valve pressure parts are cast by precision casting process, the surface quality is beautiful, no sticky sand, cold insulation and other surface defects; the internal quality is stable, no dust, sand holes, cracks and other internal defects.

A spherical connection structure is adopted at the joint of the rotary check valve rocker arm and disc, which makes the disc have a certain degree of freedom in the range of 360℃, and appropriate trace position compensation.

First, the standards and specifications:

Inspection and test: API598,JB/T9092;

Design and manufacture:API594,API 6D,JB/TB8937;

Face to face and end to end:API594,API6D,DIN3202,JB/T8937;
Pressure-temperature rating:ASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74;
Pipe flange: JB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47. 

Second, the structural characteristics:

Short structural length,only 1/4~1/8 of that of traditional flanged check valve;

Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve;

Applicable for and easily installed for vertical or horizontal pipelines;

Quick valve disc closedown, low water hammer pressure;

Smooth flow passageway and small fluid resistance;

Narrow valve travel and small closedown impact;

Flexible action and good sealing performance;

Long service life and good reliability.

Payment & Shipment 

Payment :30%T/T with order ,70% T/T before the shipment .

Package :carton case or wooden case .

Shipment :  25-45days after payment.

Shipping: by air ,by train by sea .

Port :Ningbo,Shanghai .

Material Option:  

Carbon steel :  A216 Gr. WCB, WCC, WCA, etc

Low temperature steel: A352 Gr. LCB, LCC, LC1, etc

Cr-Mo steel:A217 Gr. WC6, WC9, C5, C12, C12A, etc

Stainless Steel:A351 Gr. CF8, CF8M, CF3, CF3M, CF8C, etc

Alloy steel:CN7M alloy 20, CN3M alloy 20 modified, CT15C, etc

Super duplex:A995 Gr. 4A, 5A, CE8MN, CD6MN, CD3MN, etc

Aluminum bronze:B148 C95500, C95600, C95800, etc

Monel:M30C, M35-1, CZ100, etc

Inconel:CY40 inconel 600, etc

Hastelloy:CW2m Hastelly C4, N12MV Hastelloy B, etc

Incoloy:CU5MCuC Incoloy 825, CW6MC Incoloy 625, etc

  Persisting in the principle of "QUALITY IS LIFE, CUSTOMER IS GOD", we will strive for high efficiency, passion and integrity to provide our customers with high-quality products and superior trade services.

If you have any  questions, please feel free to contact me.your enquiry  will get prompt attention.

we will do out best  to quote you a more competitive price and short delivery time .