Class 900 Swing Check Valve

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MOQ : 5 Units

Class 900 Swing Check Valve Specification

Structure
Swing Type

Material
Cast Steel / Forged Steel

Power
Manual

Pressure
Class 900 (2250 PSI)

Media
Water, Oil, Gas

Working Temperature
-29C to 425C

Port Size
2 to 24

Surface
Coated / Painted

Shape
Straight Pattern

Application
Flow Control, Petroleum, Chemical, Power Station

Testing Standard
API 598

End Connection
Flanged, Butt Welded

Trim
13Cr / F6a / Customized

Standard
ASME B16.34, API 6D

Disc Material
Stainless Steel / Alloy Steel

Size Range
DN50 to DN600

Bonnet Type
Bolted Bonnet

Operation
Non-Return Valve (One-way flow)

Pressure Rating
Class 900

Face to Face
ANSI B16.10

Body Material
Carbon Steel / Alloy Steel

Class 900 Swing Check Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Class 900 Swing Check Valve

Class 900 Swing Check Valve is easy to install and maintain. The check valve has got rugged construction and the capability of standing impacts, rust, and shear forces. It is typically used to regulate the flow of liquids and maintain unidirectional flow The valve is made out of first-rate stainless steel that is resistant to corrosion, rust, and shear forces, therefore, it is sure to last for an extended period of time. Our customers can approach us to purchase the Class 900 Swing Check Valve at a cost-effective price.

The API BS 1868 series of Swing Check Valves is exceptionally sturdy, rugged and durable, with a reputation for quality, integrity, and long service.

They are designed for tight sealing and ease of operation. The valves are available flanged & butt-weld ends in pressure rating from ASME Class 150 to Class 2500, and in a variety of materials of construction.

Check Valves are of swing-type and bolted-cover construction. They conform to BS 1868 and also meet the general requirements of API 600, including shell wall thickness.

Main features :

Bolted body-cover design, seal welded & Valves with pressure seal cover
Bolted body-cover joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks
Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor
T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598
Rolled ACME thread on the stem for smooth operation
Tapered shoulder on the stem for back seating
Self-aligning type gland assembly with stud-and-nut tightening
Integral hard-faced body seat for globe and check valves
Spring-loaded disc on check valves suitable for no horizontal applications too
Gate and globe valves can be offered with electrical actuators
Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss, and resistance to corrosion
Valves can be offered to NACE MR-0175 and other special NACE requirements

Cast steel ASME B16.34 Swing Check Valves Pressure Seal Bonnet design

The ASME B16.34 Swing Check, and Y Type Swing Check Valves feature a pressure seal bonnet design for high-pressure services. These valves are extensively used in high pressure and high-temperature steam, oil, gas, chemical, and water applications in thermal power plants, fertilizer plants, petrochemical plants, and refineries. These valves are available in butt weld ends in pressure ratings of Classes 900, 1500 and 2500, and come in carbon steel and alloy steel construction.

Engineered to International Standards

Our Class 900 Swing Check Valves adhere to stringent international standards, including ASME B16.34, API 6D, and API 598 for testing. Every valve is constructed with precise dimensions and rigorous inspection protocols to ensure safety, reliability, and consistent operation in the harshest industrial settings.

Versatile Design for Demanding Applications

Available in a wide range of sizes (DN50 to DN600) and constructed from robust materials like carbon steel, alloy steel, and stainless steel, this valve offers flexibility across various industries. Its straight pattern and bolted bonnet further enhance durability and ease of maintenance, making it an optimal solution for water, oil, and gas transfer.

Superior Flow Protection and Efficiency

The swing-type, non-return mechanism ensures reliable prevention of reverse flow, protecting pumps and piping systems. With options for coated or painted surfaces, and customizable trim materials such as 13Cr or F6a, maintenance is minimized, and lifespan is extended, resulting in lower operational costs and greater long-term efficiency.

FAQ's of Class 900 Swing Check Valve:

Q: How does the Class 900 Swing Check Valve prevent backflow in fluid systems?

A: This swing-type check valve features a disc that opens with forward flow and closes automatically if flow reverses, thereby preventing backflow and protecting system integrity in water, oil, or gas applications.

Q: What industries are best suited for the installation of this swing check valve?

A: The valve is ideal for use in petroleum refining, chemical processing, power generation, and other heavy industries that require reliable one-way flow control under high-pressure conditions.

Q: When should you choose a flanged versus a butt welded end connection?

A: Flanged connections are suitable for systems requiring easy installation and regular maintenance access, while butt welded ends offer a more permanent, leak-resistant connection for higher integrity in critical applications.

Q: Where can the Class 900 Swing Check Valve be installed within a facility?

A: It is typically installed in main pipelines, pump discharge lines, or any area where prevention of reverse flow is crucial, such as transfer lines in oil, gas, and water service systems.

Q: What is the manufacturing and testing process for this valve?

A: Valves are manufactured following ASME B16.34 and API 6D standards for design and dimensions, and undergo strict pressure and leakage testing in compliance with API 598 to verify quality and performance.

Q: How does the choice of materials affect valve performance and longevity?

A: Selecting body and disc materials such as carbon steel, alloy steel, or stainless steel ensures compatibility with the process media, enhances corrosion resistance, and prolongs the operational life of the valve even under high temperature and pressure environments.

Q: What are the main benefits of using the Class 900 Swing Check Valve?

A: Key benefits include robust flow protection, durable construction for harsh operating conditions, minimal maintenance requirements, high-pressure performance, and compliance with global industry standards. This ensures both safety and reliability in demanding process environments.

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