Flange End Piston Valve

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MOQ : 5 Units

Flange End Piston Valve Specification

Structure
Piston Type

Material
Cast Iron, Carbon Steel, Stainless Steel

Power
Manual

Pressure
Max 16 bar

Media
Fluid, Steam, Air

Working Temperature
Up to 220C

Port Size
15 mm to 200 mm

Surface
Painted / Coated

Shape
Flanged Body

Application
Steam, Oil, Gas, Chemicals, Water

Operation
Handwheel Operated

Leakage Class
Class VI (Zero Leakage)

Test Pressure
Hydrostatic & Pneumatic as per Standards

Bonnet Type
Bolted Bonnet

End Connection
Flanged Ends as per ANSI/ASME/BS/DIN

Suitable For
Shut-off and regulating applications

Body Cover Joint
Bolted

Sealing Type
Graphite / PTFE / Metal Seated

Color
Blue/Grey/Black (custom coating available)

Design Standard
API 600 / DIN 3356 / IS: 14846

Flange End Piston Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Flange End Piston Valve

Flange End Piston Valve that we are offering is unmatched in terms of design and quality. It is typically used to control the flow of liquids and fluids passing through a pipeline system. Having made out of the first-rate alloyed metal that is resistant to corrosion, rust, and chemical attacks, the offered Flange End Piston Valve is sure to last for an extended period of time. It is typically used to control the pressure of fluids, fluid distribution, among others. Our customers can purchase the piston valve at a cost-effective price.

Full port forged steel isolation valves with a maximum operating pressure of 1973 psig/136 Barg and a maximum operating temperature of 800°F/427°C. 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

Reliable Shut-Off Performance

Engineered to deliver Class VI zero leakage, these piston valves provide uncompromising shut-off in critical applications. The robust flanged body and bolted bonnet design contribute to integrity under challenging conditions, making them ideal for steam, oil, gas, chemicals, and water systems requiring safe and effective flow control.

Flexible Design and Customization

Available in a broad range of sizes (15 mm to 200 mm), colors (blue, grey, black, and custom coatings), and materials (cast iron, carbon steel, stainless steel), the Flange End Piston Valve adapts to varied operational requirements. Users can choose from multiple sealing types-graphite, PTFE, or metal seated-to match their specific media and performance needs.

FAQ's of Flange End Piston Valve:

Q: How does the Flange End Piston Valve achieve zero leakage in shut-off applications?

A: The valve incorporates precision engineering and high-quality seal materials such as graphite, PTFE, or metal seats. Its Class VI leakage rating ensures airtight shut-off, backed by hydrostatic and pneumatic testing as per international standards.

Q: What media and industries can utilize this piston valve effectively?

A: The Flange End Piston Valve is suitable for steam, oil, gas, chemical, water, air, and other fluid media. It is widely adopted in industries including petrochemical, power generation, water treatment, and general fluid handling due to its versatile design.

Q: When should I select graphite, PTFE, or metal seated sealing for my valve?

A: Graphite seals are ideal for high-temperature or aggressive environments, PTFE provides excellent chemical resistance and low friction, while metal seats are best for extreme conditions requiring durability and longevity. Selection should be based on the media and operating temperature.

Q: Where can the valve be installed, and what connection standards does it support?

A: The valve has flanged ends designed for easy installation on pipelines complying with ANSI, ASME, BS, and DIN standards, facilitating seamless integration in both new and existing systems.

Q: What is the operating process for this handwheel-operated piston valve?

A: Operation is manual via a handwheel, allowing precise regulation or complete shut-off of flow. The bolted bonnet and cover joint ensure secure assembly, supporting safe operation even under high pressure and temperature.

Q: What are the benefits of choosing a bolted bonnet and cover joint design?

A: A bolted bonnet and cover joint enhance maintenance convenience and structural reliability. This design enables easy access for inspection and servicing, while ensuring robust pressure containment.

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