A182 F321H Stainless Steel Piston Valve

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MOQ : 5 Units

A182 F321H Stainless Steel Piston Valve Specification

Structure
Piston Type

Material
A182 F321H Stainless Steel

Power
Manual

Pressure
Medium Pressure (up to 20 Bar)

Media
Fluid, Air, Steam, Oil

Working Temperature
up to 600C

Port Size
15mm to 150mm (1/2 to 6)

Surface
Polished / Shot Blasted

Shape
Straight Pattern

Application
Steam, Water, Oil, Gas

Standard
ASME B16.34 / BS 5352

Leakage Class
Class VI

End Connection
Flanged or Screwed

Test Pressure
Hydrostatic and Pneumatic tested

Corrosion Resistance
Excellent

Weight
Varies as per port size

Seat Type
Metal to Metal

Body Material
Forged Stainless Steel

Operation
Handwheel operated

A182 F321H Stainless Steel Piston Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About A182 F321H Stainless Steel Piston Valve

A182 F321H 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

Versatile Application Range

This piston valve is suitable for a wide variety of media, including fluids, air, steam, and oils, making it a versatile choice across industries. Its forged stainless steel construction ensures durability, while its resistance to corrosion and ability to operate at temperatures up to 600C adds to its usefulness for chemicals, petrochemicals, and utilities.

Precision Engineering & Standards Compliance

Manufactured under stringent standards such as ASME B16.34 and BS 5352, this valve offers reliable, leak-tight performance, conforming to Leakage Class VI requirements. Each unit undergoes both hydrostatic and pneumatic pressure testing, guaranteeing enhanced safety and longevity under industrial service conditions.

FAQs of A182 F321H Stainless Steel Piston Valve:

Q: How is the A182 F321H Stainless Steel Piston Valve installed in a pipeline?

A: The valve can be installed using either flanged or screwed end connections, depending on the pipeline configuration. Proper alignment and tightening of the bolts or threads are essential to ensure a secure, leak-free installation.

Q: What are the main benefits of using this piston valve?

A: The primary advantages are its excellent corrosion resistance, capacity to endure high temperatures up to 600C, and reliable sealing with a metal-to-metal seat. Its robust design reduces the risk of leakage and extends operational life in harsh environments.

Q: When should I use a handwheel operated piston valve like this one?

A: Handwheel operated piston valves are ideal when manual flow control and precise regulation are required. They are particularly suited for applications with medium pressures (up to 20 bar) in steam, oil, water, or gas lines where automated actuation is unnecessary.

Q: Where is this valve commonly applied?

A: It is widely used in power plants, chemical processing facilities, refineries, and utility distribution networks. The valve is suitable for fluid, air, steam, and oil media across various industrial sectors.

Q: What is the process for testing these valves?

A: Each piston valve undergoes rigorous hydrostatic and pneumatic pressure testing to verify compliance with ASME B16.34 and BS 5352 standards. This ensures high performance, safety, and reliability in operation.

Q: How can I select the right port size for my application?

A: Port sizes range from 15mm to 150mm (1/2" to 6"). Selection should be based on the flow rate, system pressure, and the specific requirements of your process. Consulting system flow calculations and the manufacturers sizing guidelines is recommended.

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