Gate Valve Class 900

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MOQ : 5 Units

Gate Valve Class 900 Specification

Connection
Flanged or Butt Weld

Structure
Bolted Bonnet

Size
Customized

Sealing
Metal to Metal

Material
Forged/Wrought Steel

Type
Gate Valve

Power Source
Manual

Pressure
Class 900 (2250 PSI)

Media
Water, Oil, Gas, Steam

Working Temperature
-29C to +425C

Port Size
2 to 24

Surface
Smooth finished

Shape
Round

Stem Type
Rising / Non-Rising Stem

Application
Petrochemical, Power, Oil Refinery, Process plants

Body Material
ASTM A216 WCB, ASTM A351 CF8, CF8M (Options)

Seat Type
Renewable seat

Bonnet Type
Bolted

End Connection
RF/RTJ Flange or BW

Face to Face
ASME B16.10

Test Standard
API 598

Trim Material
13% Cr / SS 304 / SS 316

Operation
Handwheel

Design Standard
API 600 / ASME B16.34

Packing
Graphite

Gate Valve Class 900 Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Gate Valve Class 900

Gate Valve Class 900

Main Features :

Bolted body-bonnet design for valves up to Class 800, 1500, 2500, 4500. Valves with welded bonnet also available on request
Screwed with a seal-welded body-bonnet design for valves of Class 1500,2500, 4500.
Bellows-sealed Gate and Globe valves available in Class 800
Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks
Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor
T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598
Rolled ACME thread on stem for smooth operation
Tapered shoulder on the stem for back seating
Self-aligning type gland assembly with stud-and-nut tightening
Integral hard-faced body seat for globe and check valves
Spring-loaded disc on check valves suitable for no horizontal applications too
Gate and globe valves can be offered with electrical actuators
Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion
Valves can be offered to NACE MR-0175 and other special NACE requirements

Robust Construction for Critical Applications

Designed to handle high-pressure environments, this Class 900 gate valve is constructed from ASTM A216 WCB, CF8, or CF8M materials, ensuring compatibility with a broad range of media, including water, oil, gas, and steam. Its smooth surface finish and round shape promote efficient flow, while metal-to-metal sealing delivers superior leak resistance.

Versatile Installation and Operation

With options for rising or non-rising stems, RF/RTJ flanges or butt-weld connections, and a face-to-face dimension per ASME B16.10, the valve offers installation flexibility. The handwheel mechanism enables precise manual operation, while the renewable seat and graphite packing simplify maintenance even in continuous industrial service.

FAQ's of Gate Valve Class 900:

Q: How is the Gate Valve Class 900 operated in industrial settings?

A: The Gate Valve Class 900 is manually operated via a handwheel, allowing precise control of flow. Depending on the chosen configuration, the stem can be either rising or non-rising, accommodating varied installation requirements.

Q: What materials are used in the construction of this valve, and how do they benefit specific applications?

A: This valve is built from ASTM A216 WCB for general purposes, or CF8/CF8M stainless steel for enhanced corrosion resistance. Trim materials include 13% Cr, SS 304, and SS 316, ensuring compatibility with water, oil, gas, and steam in harsh or corrosive environments.

Q: When should a renewable seat design be selected for gate valves?

A: A renewable seat is ideal in applications where wear is frequent or maintenance access is limited. It allows easy seat replacement without removing the valve from the line, minimizing downtime during scheduled plant maintenance.

Q: Where can this gate valve be installed within process industries?

A: These valves are commonly used in petrochemical plants, oil refineries, power generation facilities, and various process industries where high-pressure and high-temperature flow control is required.

Q: What is the process for testing the Gate Valve Class 900 before commissioning?

A: Every valve undergoes rigorous testing as per API 598 standards, which include pressure, leakage, and operational tests to ensure integrity and performance before delivery and installation.

Q: How does the bolted bonnet structure enhance valve performance and maintenance?

A: The bolted bonnet design provides a secure, reliable pressure boundary and facilitates easier access for maintenance, inspection, or internal parts replacement, thus extending the service life of the valve.

Q: What are the benefits of using graphite packing in the valve stem arrangement?

A: Graphite packing offers excellent sealing performance under high temperatures and pressures. It minimizes stem leakage, resists chemical attack, and ensures reliable operation across a wide temperature range.

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