Forged Steel Gate Valve

Forged Steel Gate Valve

Forged Steel Gate Valve from Speciality Valve.

Categories: Gate Valve

Forged Steel Gate Valve Manufacturer in India

Compact forged construction makes a forged steel gate valve suitable for pressure-containing service where a robust body and smaller physical envelope are required. Speciality Valve manufactures and offers forged steel gate valves for high-pressure branch piping, steam lines, hydrocarbon isolation and small-bore process connections, with body and trim combinations selected according to service conditions.

Forged Gate Valve Design Range:

Parameter

Typical Configuration

Valve construction

Forged steel

Gate

Solid wedge or specified design

Bonnet

Bolted bonnet or pressure seal, where applicable

Size

Primarily small-bore, product dependent

Pressure class

Class 150 to Class 2500, depending on design

Operation

Handwheel, gear or actuator

Ends

Threaded, socket-weld, butt-weld or flanged

Seating

Integral or renewable metal seat

Materials Used in Forged Construction:

Forged valve bodies are selected according to mechanical properties, temperature, pressure and compatibility with the process medium.

Material

Service Consideration

Carbon steel

General pressure and process service

Low-temperature carbon steel

Low-temperature applications

Chromium-molybdenum steel

Elevated-temperature service

Stainless steel

Corrosion-resistant applications

Duplex stainless steel

Selected chloride-containing service

Nickel alloys

Specialised corrosive environments where specified

Forged Steel Gate Valve Grades:

Grade

Material Classification

ASTM A105

Carbon steel forging

ASTM A350 LF2

Low-temperature carbon steel

ASTM A182 F5

Chromium alloy steel

ASTM A182 F11

Chromium-molybdenum steel

ASTM A182 F22

Chromium-molybdenum steel

ASTM A182 F316

Austenitic stainless steel

ASTM A182 F316L

Austenitic stainless steel

ASTM A182 F51

Duplex stainless steel

Grade availability is dependent on the valve design, pressure-temperature requirements and approved material specification.

Trim and Seating Options:

Trim / Seating

Purpose

13Cr stainless steel

General wear-resistant seating surfaces

F316/F316L

Corrosion-resistant trim

Hardened trim

Improved resistance to wear

Stellite hard-facing

Enhanced resistance to erosion and abrasion

Graphite packing

High-temperature stem sealing

PTFE packing

Suitable lower-temperature services

The trim should be matched to the fluid chemistry, temperature, pressure differential and expected operating cycles.

End Connections for Forged Valves:

Threaded and socket-weld connections are commonly used for compact small-bore installations, while butt-weld and flanged arrangements can be selected where required by piping design.

Connection

Relevant Standard

Threaded

ASME B1.20.1

Socket-weld

ASME B16.11

Butt-weld

ASME B16.25

Flanged

ASME B16.5 where applicable

Face-to-face

ASME B16.10 where applicable

Pressure and Design Standards:

Forged gate valves may be designed in accordance with API 602 and ASME B16.34, with pressure and closure testing performed to API 598 or the applicable project specification.

Applications for Forged Gate Valves:

  • High-pressure steam branch lines

  • Boiler auxiliary piping

  • Compressor auxiliary connections

  • Hydrocarbon instrument isolation

  • Chemical injection lines

  • Small-bore process piping

  • High-pressure utility lines

  • Drain and vent connections

Material verification, dimensional inspection, shell testing, closure testing and functional checks can be included according to project requirements.

To specify a forged steel gate valve correctly, provide the NPS, pressure class, medium, operating temperature, end connection and required material grade for technical evaluation.


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