Welded Cover Swing Check Valve

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MOQ : 5 Units

Welded Cover Swing Check Valve Specification

Structure
Welded Cover

Material
Forged Carbon Steel

Power
Manual

Pressure
ANSI 150 to 2500

Media
Water, Oil, Gas

Working Temperature
-29C to 425C

Port Size
1/2 to 2

Surface
Anti-corrosive coated

Shape
Swing Type

Application
Petrochemical, Oil & Gas, Power Plants, Refineries

Body Standard
ASME B16.34

Leakage Class
Class VI

End Connection
Socket Weld (SW) / Butt Weld (BW)

Flow Direction
Uni-directional

Face to Face
According to ASME B16.10

Testing Standard
API 598

Seat
Metal Seated

Body Design
Full Bore

Operation
Automatic, No Manual Intervention Required

Welded Cover Swing Check Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Welded Cover Swing Check Valve

Welded Cover Swing Check Valve

The Welded Cover Swing Check Valve is a strong and leak-proof valve of bolted body bonnet joint. With its use, there is no penetration of hinge pin. In that case, pin seal leakage can be eliminated. It is accessible with a compact cage unit. Welded Cover Swing Check Valve has a mirror finish as well as maximum erosion resistance. With a long service life and seal-welded body, the said valve can rotate well for a tight shutoff. The seating faces of the valve can be re-lapped. Also, it has a forged bonnet and allows for superior functionality.

We are offering here the Welded Cover Swing Check Valve that are heavy duty, bolted cover, renewable seat ring, internally body mounted disc arrangement. These valves are unidirectional valves and restrict flow from opposite direction. These valves are best suited for moderate velocity conditions. Swing check valves are normally designed for horizontal flow condition, but can also be installed in vertical pipeline, but in vertical pipeline. The offered Welded Cover Swing Check Valve is very durable and durable.

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.

Precision Engineered for Industrial Demands

This swing check valve is designed with a welded cover structure and made from robust forged carbon steel, ensuring durability even under extreme pressure and temperature conditions. Its full bore and anti-corrosive surface support efficient flow and resistance to harsh media, making it suitable for critical uses in petrochemical, oil & gas, power plants, and refinery operations.

Reliable One-Way Flow and Leakage Control

Engineered for uni-directional flow, the automatic operation eliminates the need for manual action, maximizing safety and efficiency. The metal-seated structure and Class VI leakage class meet strict industry standards, providing dependable sealing even under fluctuating system loads.

FAQs of Welded Cover Swing Check Valve:

Q: How is the Welded Cover Swing Check Valve installed?

A: Installation of this swing check valve requires either socket welding or butt welding, depending on the selected end connection. It should be aligned according to the flow direction indicated and installed between flanges or pipe ends as per ASME B16.10 face-to-face dimensions.

Q: What are the typical applications for this valve model?

A: This valve is commonly deployed in petrochemical, oil & gas, power plants, and refinery settings, where controlling backflow and ensuring safety are fundamental requirements for equipment handling water, oil, or gas.

Q: When should you select a metal-seated swing check valve?

A: Opt for the metal-seated design when high temperatures, abrasive media, or frequent cycling might compromise soft-seated alternatives, especially within environments requiring strict adherence to leakage Class VI as per API 598 standards.

Q: Where can this valve be used based on pressure and temperature ratings?

A: With ANSI pressure ratings from 150 to 2500 and an operational temperature span from -29C to 425C, the valve is well suited for systems demanding robust performance across a wide pressure/temperature spectrum in industrial plants.

Q: What is the process for ensuring leak-tight operation in this valve?

A: Each valve is factory tested in accordance with API 598, which involves hydrostatic and pneumatic tests to guarantee leakage class VI compliance before shipment, ensuring operational integrity after installation.

Q: How does the automatic operation benefit system reliability?

A: The valves automatic function means it responds independently to system flow changes, offering near-instantaneous closure against backflow without the need for manual intervention or external power sources.

Q: What advantages does the anti-corrosive coating offer?

A: The anti-corrosive coating protects the valve body from aggressive chemicals, moisture, and environmental factors, significantly extending product lifespan and reducing maintenance intervals, which is vital for cost-effective operation in harsh industrial contexts.

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