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Duplex Stainless Steel Gate Valve

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MOQ : 5 Units

Duplex Stainless Steel Gate Valve Specification

Sealing
Soft/Metal Seated with PTFE/Graphite/Integral Seat

Size
1/2 inch to 24 inch (DN15 to DN600)

Connection
Flanged Ends (ANSI B16.5/EN1092), Butt Weld ends

Structure
Bolted Bonnet

Material
Duplex Stainless Steel (e.g., ASTM A890/A995 Gr 4A/5A/6A)

Type
Gate Valve

Power Source
Manual

Pressure
Class 150/300/600 (as applicable)

Media
Water, Oil, Gas, Chemical, Petrochemical

Working Temperature
-29C to 250C

Port Size
Full Port (as per requirement)

Surface
Shot Blasted & Passivated Finish

Shape
Round Body with Rising Stem

Corrosion Resistance
Excellent (suitable for aggressive environments)

End Connection Pressure Rating
PN16, PN25, Class 150 to 600

Application
Corrosive & seawater environments

Face to Face Dimension
ASME B16.10

Design Type
Outside Screw and Yoke (OS&Y)

Stem Material
Duplex Stainless Steel

Handwheel Material
Cast Iron/Carbon Steel

Operation Direction
Anti-clockwise to Open (standard)

Testing Standard
API 598

Actuator Option
Gear Operated/Electric (on request)

Body Material Hardness
235 HB (typical)

Bonnet Type
Bolted Bonnet/Pressure Sealed (Optional)

Backseat Feature
Provided

Leakage Class
Class VI (Optional)

Packing
Graphite/PTFE

Duplex Stainless Steel Gate Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Duplex Stainless Steel Gate Valve

Duplex Stainless Steel Gate Valve

The API 600 Gate Valves is exceptionally sturdy, rugged, and durable, with a reputation for quality, integrity, and long service.

They are designed for tight sealing and ease of operation. The valves are available flanged & butt-weld ends in pressure rating from ASME Class 150 to Class 2500, and in a variety of materials of construction.

Gate Valves are of flexible wedge design, outside screw and yoke, and bolted-bonnet construction. The valves conform to API 600.

Main features

Bolted body-bonnet design, seal welded & Valves with pressure seal bonnet
Bellows-sealed Gate and Globe valves available
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

Specification

Country of Origin	Made in India
Size	1/2 Inch to 48 Inch
Usage/Application	150 Class,300 Class,600 Class,900 Class,1500 Class,2500 Class
Media	Oil, Gas, Chemical, Process Industries, Water
Pressure	Medium
Temperature Of Media	High Temperature,Low Temperature,Medium Temperature
End Connection Type	Flange End, Socket Weld, Butt Weld End, Screwed, Etc.
Automation Grade	Manual
Port Size	1/2 Inch to 48 Inch
Is It Corrosion Resistant	Corrosion Resistant
Material	Cast Carbon Steel, Cast Alloy Steel, Cast Stainless Steel
Is It ISO Certified	ISO Certified

Precision Engineering for Challenging Environments

This gate valve is constructed from duplex stainless steel, conforming to ASTM A890/A995 standards, ensuring superior resistance against aggressive media. The shot blasted and passivated surface finish further enhances durability, making it suitable for environments exposed to chemicals, seawater, and corrosive fluids. Its reliable sealing-soft or metal seated-minimizes leakage while supporting a wide working temperature range from -29C to 250C.

Versatility in Operation and Connection

The valve is offered with manual handwheel operation, gear operated, or on-request electric actuators, ensuring flexible control. It features both flanged and butt weld end connections, compatible with ANSI B16.5 and EN1092 standards, and comes in pressure ratings from PN16 up to Class 600. Its bolted bonnet and rising stem structure provide ease of maintenance, while the anti-clockwise opening offers standard handling.

FAQ's of Duplex Stainless Steel Gate Valve:

Q: How is the Duplex Stainless Steel Gate Valve operated and what actuator options are available?

A: The valve is primarily designed for manual operation using a cast iron or carbon steel handwheel. However, for automated control, it can be fitted with gear operated or electric actuators upon request to suit varying application needs.

Q: What makes this gate valve suitable for corrosive and seawater environments?

A: The valve's body, made from duplex stainless steel (ASTM A890/A995 Gr 4A/5A/6A), exhibits exceptional corrosion resistance, complemented by a shot blasted and passivated surface finish. These features ensure reliability when exposed to aggressive fluids such as seawater, chemicals, and oil.

Q: Where are these valves typically used?

A: Duplex stainless steel gate valves are commonly installed in water treatment plants, chemical processing facilities, petrochemical industries, and offshore platforms where robust corrosion resistance and dependable shutoff are essential.

Q: What is the testing and leakage standard for this gate valve?

A: Each valve is tested according to API 598 standards to ensure integrity and performance. An optional Class VI leakage standard can be provided, offering enhanced sealing particularly for demanding applications.

Q: How does the valve maintain secure sealing under varying pressures and temperatures?

A: The gate valve features soft or metal sealed seats with PTFE, graphite, or integral seating options. Combined with a backseat feature and packing of graphite or PTFE, these components guarantee tight sealing across pressure ratings of PN16, PN25, and Class 150 to 600, at working temperatures from -29C to 250C.

Q: What are the available end connection types and port sizes for this valve?

A: You can choose between flanged ends (ANSI B16.5/EN1092) and butt weld connections, suitable for various piping systems. The valve is full port as per requirement, offering minimal flow restriction and ease of integration.

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