SQK A351 CF3 Cast Stainless Steel Piston Valve

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MOQ : 5 Units

SQK A351 CF3 Cast Stainless Steel Piston Valve Specification

Structure
Double Chamber Piston Valve

Material
A351 CF3 Cast Stainless Steel

Power
Manual

Pressure
PN16

Media
Fluids, Air, Gases

Working Temperature
Up to 200C

Port Size
15mm to 150mm

Surface
Shot Blasted

Shape
Piston Type Valve

Application
Steam, Oil, Gas, Chemical Industries

Seal Material
PTFE

Operating Method
Handwheel

Design
Leak Proof Piston Design

End Connection
Flanged

Color
Silver

Body Type
Full Bore

Standards
ASME / ASTM

Testing
Hydrostatic & Pneumatic Tested

Handle Material
Stainless Steel

SQK A351 CF3 Cast Stainless Steel Piston Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About SQK A351 CF3 Cast Stainless Steel Piston Valve

SQK A351 CF3 Cast Stainless Steel Piston Valve

Full port forged steel isolation valves with a maximum operating pressure of 1973 psig/136 Barg and a maximum operating temperature of 800oF/427oC. The burnished piston and metal reinforced graphite rings provide leak-proof shut off and allow Piston Valves to be operated at higher temperatures, while also extending operating life.

Piston Valves are available in Socket Weld, BSPT, and NPT end connections. Flanged ends can be supplied upon request. Piston Valves are ideal for saturated and superheated steam, and hot water applications.

Piston Valves Feature :

Leak-proof isolation
Sizes from 1/2"/15mm to 1-1/2"/40mm
Choice of socket weld or threaded connections
Compatible with ASME
Resistant to cavitation
All sealing valve components may be easily replaced in-line
Long-term operation. Piston valve design ensures actuation even after many years without operation
Fire-proof performance

Design Standards :

ASME (B16.34, B16.5)
Inspection and testing (API 598)
Leak test (ANSI/FCI 70-2 )
Fire test (API SPEC 6FA : 1999

Design features of Piston Valves :

Materials of Construction

Body and Bonnet ASTM A105N / A350 LF2 Forged Steel
Spindle SS T304
Ring Valve SS T3016 + Graphite
Piston SS 17-4 PH
Spacer CA 40
Belleville Washer ASTM A231
Name Plate SS 304

Leak-Proof Durability for Critical Systems

Engineered with a double chamber piston design and PTFE seal material, the SQK piston valve guarantees minimal risk of leakage even in high-pressure or high-temperature applications. This makes it particularly well-suited for systems handling steam, gases, fluids, and chemicals, ensuring uninterrupted operation and reliable sealing in industrial environments.

Flexible Port Options for Diverse Installations

The valve's port sizes range from 15mm to 150mm, accommodating a variety of pipeline requirements in both large and small-scale industrial setups. Its flanged end connections enable straightforward integration into existing systems, making it a versatile choice for distributors, suppliers, and manufacturers across multiple sectors.

Rigorously Tested to International Standards

Every SQK A351 CF3 valve undergoes comprehensive hydrostatic and pneumatic testing, adhering to ASME and ASTM standards. This rigorous validation process ensures each unit meets stringent safety and performance benchmarks, providing dependable operational life and reducing maintenance concerns for end users.

FAQ's of SQK A351 CF3 Cast Stainless Steel Piston Valve:

Q: How is the SQK A351 CF3 Piston Valve installed and where can it be used?

A: This valve features flanged end connections, enabling easy installation in pipelines of chemical, oil, steam, or gas industries. Its robust construction and full bore design make it ideal for use in facilities needing reliable flow regulation for a wide range of fluids and gases.

Q: What are the benefits of the leak-proof piston design in this valve?

A: The leak-proof piston design, combined with PTFE seals, minimizes leakage risk and ensures consistent sealing performance. This adds safety, reduces product loss, and increases operational efficiency in critical industrial applications.

Q: When should I use a double chamber piston valve like this model?

A: Double chamber piston valves like the SQK A351 CF3 are best used when high reliability and tight sealing are required, such as in steam, gas, or chemical pipelines subject to high pressure (up to PN16) and temperatures (up to 200C).

Q: What is the typical process for testing SQK A351 CF3 Piston Valves before supply?

A: Each valve undergoes strict hydrostatic and pneumatic testing in compliance with ASME and ASTM standards to verify strength, sealing, and performance before being delivered to distributors, suppliers, or end users.

Q: How does the stainless steel body and handle material enhance usage?

A: A351 CF3 cast stainless steel provides excellent corrosion resistance and mechanical strength, while the stainless steel handwheel ensures durability and easy manual operation, making this valve suitable for harsh environments and frequent handling.

Q: What range of fluids and media can the valve handle?

A: The valve is engineered for versatility, capable of controlling the flow of fluids, gases, steam, and air, thus supporting a wide scope of industrial processes in chemical, oil, gas, and steam sectors.

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