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Swing Check Valve
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Product serial number
TT_094
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Product description
Parameters
The company owns a registered capital of RMB 56 million, makes a total investment of RMB 200 million, and realizes an annual production capacity of 7,500 tons of industrial valves and annual output value of over RMB 100 million. In the industrial park, there are more than ten workshops respectively in hot forging, precision casting, welding, heat treatment, machining, assembly, etc., forged valve, cast valve and special valve production centers, and over 300 sets of machining and inspection equipment including CNC machining centers, plasma welding machines, overclocking vacuum heat treatment equipment, CNC and efficient ball turning machines, physical and chemical and flaw detection equipment, nondestructive testing equipment and spectral analyzing equipment. In addition, the company has established a CAD valve design center and a 3D simulation manufacturing test design system, ensuring the quality and speed of new product R&D. The company also has a complete quality assurance system and controls product quality in strict accordance with the standard of ISO9000 from the purchase of raw materials to the delivery of finished products.
Swing Check Valve
Standards:
Design and Manufacture: Cast steel check valve to BS 1868, ASME B16.34 and API 6D；Forged steel check valve to API 602.
Inspection and Test: API 598 or API 6D.
End flange dimension: ASME B16.5（for NPS≤24）；ASME B16.47 series B、API 605 or ASME B16.47 series A、MSS SP-44（for NPS＞24）.
BW end dimension: ASME B16.25.
Socket-weld dimension: ASME B16.11.
Face to face and end to end: ASME B16.10.
Pressure-temperature ratings: ASME B16.34.
Wall thickness dimension: API 600 and BS 1868.
Features of Check Valve
Bolted Bonnet; Swing and lift disc; Metallic seating surfaces.
Body and Bonnet Connection
The body and bonnet of Class150～Class900 check valves are usually with studs and nuts.
And the body and bonnet of Class1500～Class2500 check valves are usually of pressurized seal design.
Body-To-Bonnet Joint
Stainless steel + flexible graphite wounded gasket is used for Class150 and Class300 check valve;
Stainless steel + flexible graphite wounded gasket is used for Class600 check valve,
and joint gasket is also optional for Class600 check valve; Ring joint gasket is used for Class900 check valve;
Pressurized seal design is used for Class1500～Class2500 check valves.
Seat
For carbon steel check valve, the seat is usually forged steel. The sealing surface of the seat is spray welded
with hard alloy specified by the customer. Renewable threaded seat is used for NPS≤10 check valves,
and welded on seat can be also optional if being requested by the customer.
Welded on seat is used for NPS ≥12 carbon steel gate valves. For stainless steel check valve,
integral seat is usually adopted, or to weld hard alloy directly integrally.
Threaded or welded on seat is also optional for stainless steel check valve if being requested by the customer.
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Swing Check Valve
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Description:
Z43Y-250 DN65
Z43Y-250 DN65 Product Name : Flat gate valve Product Model : Z43Y-250 DN65 Pressure Grade : 60lb~2500lb Product Specification : DN “2~12” Temperature: ≤593℃ Mediums : water, steam oil
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Time of issue:2021-08-23 15:23:51
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