Duplex Stainless Steel Piston Valve

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MOQ : 5 Units

Duplex Stainless Steel Piston Valve Specification

Structure
Piston type valve with bonnet

Material
Duplex Stainless Steel

Power
Manual

Pressure
Up to 16 bar

Media
Water, steam, air, oil

Working Temperature
-20C to 220C

Port Size
DN15 to DN100

Surface
Polished

Shape
Cylindrical

Application
Industrial fluid control, chemical processing, oil & gas

End Connection
Flanged

Valve Type
Piston Valve

Corrosion Resistance
Excellent

Size Range
15mm to 100mm

Sealing Type
PTFE/Graphite

Usage
Isolation and shut-off

Leakage Class
Class VI

MOC (Material Of Construction)
Duplex Stainless Steel UNS S32205/S31803

Duplex Stainless Steel Piston Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Duplex Stainless Steel Piston Valve

Duplex 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

Superior Corrosion Resistance

Constructed from Duplex Stainless Steel UNS S32205/S31803, this piston valve offers excellent resistance to harsh chemicals and corrosive fluids, making it suitable for challenging industrial applications. Its superior metallurgy ensures durability and minimal maintenance, promoting reliable performance even in aggressive environments.

Versatile Applications and Reliable Sealing

The valve is equipped with PTFE or Graphite sealing options, supporting a leak-free operation (Class VI leakage) across a wide range of pressures and temperatures. It is highly effective in industrial fluid control, particularly within chemical processing and oil & gas sectors, thanks to its robust, cylindrical design and flanged connections.

FAQ's of Duplex Stainless Steel Piston Valve:

Q: How does the Duplex Stainless Steel Piston Valve ensure excellent corrosion resistance?

A: The valve is crafted from Duplex Stainless Steel UNS S32205/S31803, renowned for its superior resistance to corrosion in aggressive chemicals, saline waters, and industrial fluids, helping extend the valve's lifespan and reduce maintenance needs.

Q: What is the process for installing the piston valve with flanged end connections?

A: Installation involves aligning the flange with the pipeline, ensuring proper gasket placement, and securing the valve with flange bolts. This design simplifies installation and enhances leak-tightness in industrial fluid control systems.

Q: Where can the piston valve be used to maximize its benefits?

A: This valve is ideal for use in chemical processing plants, oil & gas facilities, and water treatment systems, particularly where isolation and shut-off of fluids are critical and exposure to corrosive media is common.

Q: When should PTFE or Graphite sealing be selected for this valve?

A: PTFE sealing is recommended for applications with lower temperatures and non-abrasive fluids, while Graphite offers superior performance in high-temperature or steam services due to its thermal stability and durability.

Q: What media are compatible with the Duplex Stainless Steel Piston Valve?

A: Compatible media include water, steam, air, oil, and various industrial fluids, making the valve suitable for diverse applications requiring dependable shut-off and isolation.

Q: How does manual operation contribute to the valve's usability?

A: Manual power allows for precise control over fluid flow, making the valve easy to operate and maintain without the need for complex automation systems, which is advantageous for field operations.

Q: What are the key benefits of using this valve in industrial applications?

A: Users benefit from exceptional corrosion resistance, leak-free performance (Class VI leakage), versatility in fluid control, and reliable operation across a broad temperature and pressure range, ensuring safety and efficiency in critical processes.

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