Buttweld End Swing Check Valve

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MOQ : 5 Units

Buttweld End Swing Check Valve Specification

Structure
Swing Type; Buttweld End

Material
Stainless Steel

Power
Manual

Pressure
PN16 / Class 150

Media
Water, Oil, Gas

Working Temperature
-29C to 425C

Port Size
2 inch to 24 inch (DN50 DN600)

Surface
Polished / Shot Blasted

Shape
Round

Application
Industrial Pipelines, Oil & Gas, Petrochemical

Seat Material
Metal to Metal / Soft Seated

Feature
Corrosion resistant, Durable construction, Leak proof

Operation
Non-Return; Automatic Closure

Valve Type
Swing Check Valve

Leakage Class
API 598

Disc Material
Stainless Steel

Size Range
DN50 to DN600

Body Material
ASTM A351 Gr. CF8 / CF8M

End Connection
Buttweld

Face to Face
ANSI B16.10

Standard
ASME B16.34 / API 6D / BS1868

Buttweld End Swing Check Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Buttweld End Swing Check Valve

Buttweld End Swing Check Valve is easy to install and work with. The tool is designed and developed in our ultra-advanced production site making the best use of pioneering tools and techniques. It has got rugged construction and resilience, therefore, the valve can endure chemical attacks, abrasion, rust, and other degrading factors. Buttweld End Swing Check Valve can regulate the flow of liquids flowing through a pipeline system. It is easy to operate and maintain.

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.

High Performance & Robust Design

Our Buttweld End Swing Check Valve is built to provide superior performance and reliability in demanding environments. Constructed using ASTM A351 Gr. CF8 / CF8M stainless steel, this valve is engineered to withstand corrosive media and high pressures. Its durable, leak-proof structure and polished or shot-blasted surface guarantee long-lasting service in critical oil, gas, and industrial applications.

Wide Operating Range & Compliance

Engineered to meet global standards such as ASME B16.34, API 6D, and BS1868, the valve operates efficiently across a temperature spectrum from -29C to 425C and pressure up to PN16 / Class 150. The face-to-face dimensions conform to ANSI B16.10, ensuring compatibility and interchangeability with industrial systems.

Precision in Flow Control & Use

With a swing-type structure and buttweld end, this check valve automatically prevents reverse flow, protecting equipment integrity. It is ideal for water, oil, and gas media, providing reliable service in pipelines with port sizes from 2 inch to 24 inch (DN50 - DN600). The valve's polished finish enhances resistance to wear and corrosion for extended usage.

FAQ's of Buttweld End Swing Check Valve:

Q: How does a Buttweld End Swing Check Valve operate?

A: This swing check valve functions as a non-return device, allowing flow in only one direction. When fluid flows forward, it pushes the disc open. When flow reverses or stops, the disc swings back to its closed position, automatically preventing backflow without manual intervention.

Q: What materials are used in the construction of this valve?

A: The valve body is crafted from ASTM A351 Grade CF8 or CF8M stainless steel, ensuring corrosion resistance and structural durability. The disc is made from stainless steel, while seat options include both metal-to-metal and soft seated designs for optimal sealing.

Q: Where can this swing check valve be installed?

A: Designed for industrial pipeline systems, it is widely used in oil & gas, petrochemical, and utility industries across India and global markets. Typical installation points include pipeline segments requiring non-return flow control for water, oil, or gas media.

Q: What are the key benefits of using this check valve?

A: Key advantages are its leak-proof sealing, high corrosion resistance, durable stainless steel construction, and automatic non-return operation. The valve's compliance with major standards assures safety and compatibility, while its polished surface offers extended wear life.

Q: When should this valve be used in a pipeline system?

A: It should be used where prevention of reverse flow is crucial, such as protecting pumps, compressors, and critical equipment from backflow. It is especially suitable for systems operating at pressures up to Class 150 and temperatures down to -29C and up to 425C.

Q: What is the process for installing a Buttweld End Swing Check Valve?

A: The valve is installed by welding its buttweld ends directly onto the corresponding pipe ends, ensuring strong, leak-proof joints. Proper alignment is essential to maintain effective non-return operation and system integrity.

Q: How does the valve ensure leak-proof performance?

A: The swing check valve utilizes precision-engineered seatings-either metal or soft-as per application needs, conforming to API 598 leakage class standards. Rigorous testing guarantees tight sealing, minimizing the risk of leaks during operation.

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