SQK A217 WC9 Cast Alloy Steel Swing Check Valve

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MOQ : 5 Units

SQK A217 WC9 Cast Alloy Steel Swing Check Valve Specification

Structure
Swing Check

Material
A217 WC9 Cast Alloy Steel

Power
Manual

Pressure
Class 150 / Class 300

Media
Water, Oil, Gas

Working Temperature
-29C to 425C

Port Size
2 Inch to 24 Inch

Surface
Painted / Anti-corrosive Coating

Shape
Swing

Application
Oil, Gas, Petrochemical, Power Plants, Refineries

Leakage Class
API 598

Face to Face
ASME B16.10

Cover Type
Bolted Cover

Operation
Swing Type, Self Acting

Body Material
ASTM A217 WC9

Standard
ASME B16.34 / API 594

Flow Direction
Unidirectional

End Connection
Flanged

Design
Non-return Valve, Prevents Backflow

Testing Standard
API 598

SQK A217 WC9 Cast Alloy Steel Swing Check Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About SQK A217 WC9 Cast Alloy Steel Swing Check Valve

SQK A217 WC9 Cast Alloy Steel Swing Check Valve

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.

Reliable Backflow Prevention

The SQK A217 WC9 Swing Check Valve, constructed from high-grade ASTM A217 WC9 cast alloy steel, offers dependable prevention of reverse fluid flow. The swing-type, self-acting mechanism ensures seamless operation without requiring external power, protecting downstream systems from unwanted pressure surges or contamination. Its robust design makes it ideal for heavy-duty scenarios, optimizing operational safety and lifecycle reliability.

Industry-Compliant Design

Complying with global standards such as ASME B16.34 and API 594, this valve guarantees optimal compatibility in industrial environments. The flanged connection and precision face-to-face dimensions per ASME B16.10 make installation simple and consistent. Rigorous testing to API 598 standards ensures minimal leakage, providing peace of mind in critical service applications.

FAQ's of SQK A217 WC9 Cast Alloy Steel Swing Check Valve:

Q: How does the SQK A217 WC9 Swing Check Valve prevent backflow?

A: The valve uses a swing-type, self-acting mechanism that automatically closes the valve flap when flow reverses, thereby stopping backflow and protecting downstream components.

Q: What are the primary applications for this swing check valve?

A: This valve is suited for oil, gas, petrochemical, power plants, and refineries, making it versatile for handling water, oil, and gas media in demanding industrial environments.

Q: When should I use a swing check valve like this?

A: Use this valve when you need to ensure unidirectional flow and protect sensitive equipment from potential damage due to reverse flow, especially in high-pressure pipelines.

Q: Where can the SQK A217 WC9 valve be installed?

A: It can be installed in pipelines requiring unidirectional flow, such as pump discharge lines or other locations where backflow prevention is essential in oil, gas, and process industries.

Q: What is the benefit of the anti-corrosive coating on the valve?

A: The anti-corrosive coating protects the valve from harsh environments, reducing wear and maintenance needs, and extending service life even under aggressive media exposure.

Q: How is the valve tested for leakage and performance?

A: Each unit undergoes stringent testing as per API 598 standards to ensure structural integrity and minimal leakage, ensuring reliable operation under specified pressure and temperature ranges.

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