SQK A105 Forged Carbon Steel Piston Valve

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MOQ : 5 Units

SQK A105 Forged Carbon Steel Piston Valve Specification

Structure
Bolted Bonnet, Piston Type

Material
Forged Carbon Steel ASTM A105

Power
Manual

Pressure
Class 800 (PN 100)

Media
Water, Oil, Steam, Gas

Working Temperature
up to 425C

Port Size
1/2 inch to 2 inch

Surface
Black Painted / Anti-corrosive Coated

Shape
Straight Pattern

Application
Industrial steam, oil, and gas lines

Flow Direction
Bi-directional

End Connection
Threaded/Socket Weld Ends

Seat Type
Renewable Stainless Steel (SS) Seat

Leakage Class
Zero Leak Design

Connection Type
Socket Weld, Screwed (BSP/NPT)

Operation
Handwheel operated

Testing Standard
API 598

Body Material Grade
ASTM A105

SQK A105 Forged Carbon Steel Piston Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About SQK A105 Forged Carbon Steel Piston Valve

SQK A105 Forged Carbon 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

Superior Sealing and Durability

This piston valve is designed with a renewable stainless steel seat, providing exceptional resistance to wear and ensuring a zero-leakage seal over extended periods of operation. The forged ASTM A105 body construction further guarantees excellent durability under high pressures and temperatures, making it a dependable solution for critical industrial pipelines.

Versatile Applications and Connections

With its bi-directional flow capability, this valve accommodates a range of industrial uses, including steam, oil, water, and gas lines. The product supports multiple connection types, such as socket weld and threaded (BSP/NPT) ends, enabling flexible integration into existing systems and streamlined installation for various industrial needs.

FAQ's of SQK A105 Forged Carbon Steel Piston Valve:

Q: How does the SQK A105 Forged Carbon Steel Piston Valve ensure zero leakage?

A: The valve features a renewable stainless steel (SS) seat and a precision-engineered piston mechanism, which together provide a tight and reliable seal. This design is certified for zero leakage, making it exceptionally suited for critical operations where leak prevention is paramount.

Q: What processes are used to test the performance and reliability of this piston valve?

A: All valves undergo rigorous inspections in accordance with API 598 testing standards, which cover pressure integrity, sealing performance, and operational safety. This ensures that each unit meets international quality benchmarks before dispatch.

Q: Where is this piston valve typically used in industrial settings?

A: The SQK A105 piston valve is commonly installed in industrial pipelines handling steam, oil, gas, and water, including power plants, chemical facilities, refineries, and manufacturing units. Its robust construction makes it ideal for challenging environments.

Q: What are the key benefits of choosing a handwheel-operated piston valve with bi-directional flow?

A: Handwheel operation allows precise manual control over flow regulation, while the bi-directional flow design offers flexible installation. This combination enhances operational efficiency and allows for easy maintenance and quick shutoff in either direction.

Q: When should I choose the threaded versus socket weld end connection?

A: Threaded (BSP/NPT) connections are preferable for quick installation and maintenance in lower-pressure or temporary setups. Socket weld ends provide a more secure, permanent connection suited for high-pressure or vibration-prone systems.

Q: What is the working temperature and pressure range of this valve?

A: The SQK A105 piston valve is rated for pressures up to Class 800 (PN 100) and can operate continuously at temperatures of up to 425C, making it suitable for demanding applications in steam and high-temperature fluid systems.

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