SQK A182 F321 Stainless Steel Swing Check Valve

Get a Price/Quote

MOQ : 5 Units

SQK A182 F321 Stainless Steel Swing Check Valve Specification

Structure
Swing Check

Material
A182 F321 Stainless Steel

Power
Manual

Pressure
PN16

Media
Water, Oil, Gas

Working Temperature
-29C to 425C

Port Size
2 Inch

Surface
Mirror/Polished Finish

Shape
Swing Type

Application
Industrial, Chemical, Petrochemical, Oil & Gas

Test Pressure
Hydrostatic tested as per API 598

Disc Material
Stainless Steel 321

Valve Type
Check Valve

Body Material
Stainless Steel 321

End Type
ASME B16.5 Flanged Ends

Face to Face
ANSI Standard

Connection Type
Flanged

Applicable Fluid
Corrosive and Non-Corrosive Media

Seal Type
Metal to Metal

Operation
Non-Return

Size Range
1/2 Inch to 12 Inch

Standard
ANSI/ASME

SQK A182 F321 Stainless Steel Swing Check Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About SQK A182 F321 Stainless Steel Swing Check Valve

SQK A182 F321 Stainless Steel Swing Check Valve

Main Features :

Bolted Body-Cover design for valves from Class 800 up to Class 2500. Valves with welded bonnet also available on request
Screwed with a seal-welded body-bonnet design for valves of Class 2500
Bolted body-bonnet 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 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

Superior Non-Return Functionality

The SQK A182 F321 Swing Check Valve utilizes a swing-type mechanism to provide dependable non-return flow control. Its robust design prevents reverse flow, protecting sensitive equipment downstream in diverse industrial environments. Swing check operation ensures minimal pressure loss and reliable sealing, making it suitable for applications requiring consistent, maintenance-free performance.

High Resistance to Corrosive Media

Manufactured from A182 F321 stainless steel, this valve excels in resisting corrosion caused by aggressive fluids. Its metal-to-metal seal and polished finish enhance durability in challenging chemical and petrochemical settings, extending service life and minimizing downtime. This superior material choice guarantees reliability even when exposed to high temperatures and corrosive substances.

Precision Engineered to ANSI/ASME Standards

Designed and built to ANSI/ASME specifications, the SQK Swing Check Valve offers universal compatibility with flanged piping systems conforming to ASME B16.5. Rigorous hydrostatic testing as per API 598 ensures operational safety and quality. The face-to-face dimensions and pressure rating PN16 meet global industrial standards, supporting diverse applications across water, oil, and gas sectors.

FAQ's of SQK A182 F321 Stainless Steel Swing Check Valve:

Q: How does the SQK A182 F321 Swing Check Valve prevent backflow in industrial pipelines?

A: This valve features a swing-type check mechanism that allows fluid to flow in one direction and automatically closes when flow reverses. This non-return operation prevents backflow, protecting equipment and ensuring uninterrupted operation in water, oil, gas, or chemical pipelines.

Q: What are the advantages of using stainless steel 321 in both the body and disc of the check valve?

A: Stainless steel 321 offers excellent resistance to corrosion and oxidation, particularly at high temperatures. This material ensures longevity, reliability, and minimal maintenance when the valve is exposed to aggressive fluids or challenging industrial environments.

Q: When should this valve be chosen for a process system?

A: The SQK A182 F321 Swing Check Valve is ideal when systems require reliable backflow prevention in corrosive or non-corrosive media. It is recommended for chemical, petrochemical, oil & gas, and water applications, especially where durability and high performance are essential.

Q: Where can the SQK Swing Check Valve be installed?

A: This valve can be installed in any pipeline system equipped with ASME B16.5 flanged connections, commonly found in industrial plants, chemical facilities, and petrochemical refineries throughout sectors across India and internationally.

Q: What is the hydrostatic test process followed for this valve?

A: Each valve is hydrostatically tested in accordance with API 598 standards to verify its integrity at defined pressures. This rigorous process ensures the valve is leak-free and ready for demanding operational conditions.

Q: How should the SQK Swing Check Valve be maintained for optimal performance?

A: Routine inspection for external signs of wear and periodic cleaning of the metal-to-metal seal are recommended. Due to its robust stainless steel construction and polished finish, the valve typically requires minimal maintenance during service life.

Q: What benefits does the mirror/polished finish provide for this check valve?

A: The mirror/polished surface improves corrosion resistance, facilitates easier cleaning, and enhances the valve's lifespan. It's particularly beneficial in applications involving aggressive media and helps maintain a high level of hygiene in process pipelines.

Tell us about your requirement