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SQK Duplex Stainless Steel Gate Valve

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MOQ : 5 Units

SQK Duplex Stainless Steel Gate Valve Specification

Connection
Flanged / BW

Structure
Bolted Bonnet

Sealing
PTFE / Metal to Metal

Size
2 24 (DN50 DN600)

Material
Duplex Stainless Steel (ASTM A890 4A/5A/6A)

Type
Gate Valve

Power Source
Manual

Pressure
Class 150LB 2500LB

Media
Water, Oil, Gas, Acid

Working Temperature
-29C to 250C

Port Size
DN50 - DN600

Surface
Polished

Shape
Rectangular

Seat Test Pressure
1.1 x rated pressure

Design Feature
Full Port, Non-Rising Stem (Customized Options)

Corrosion Resistance
Excellent

End Connection
RF/RTJ/BW

Face to Face
ASME B16.10

Application
Petrochemical, Marine, Power, Offshore Industries

Standard
ASME B16.34 / API 600

Operation
Handwheel / Gear Operator (Optional)

Body Test Pressure
1.5 x rated pressure

SQK Duplex Stainless Steel Gate Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About SQK Duplex Stainless Steel Gate Valve

SQK 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

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

Engineered for Demanding Applications

The SQK Duplex Stainless Steel Gate Valve is purpose-built for critical sectors like offshore, petrochemicals, and marine. Its duplex body material and bolted bonnet structure provide excellent strength and corrosion resistance, making it ideal for environments where reliability is paramount. Its full port design enhances flow efficiency for all compatible media types.

Flexible Installation and Sizing Options

Available with RF, RTJ, or BW end connections, the SQK valve adapts readily to diverse system requirements. It is offered in sizes ranging from DN50 to DN600 (2"-24"), accommodating various piping configurations. The valve complies with ASME B16.10 face-to-face dimensions and supports both handwheel and gear-operated mechanisms.

Rigorous Testing and Tight Sealing

Every valve undergoes body and seat pressure tests at 1.5x and 1.1x its rated pressure, ensuring dependable performance under operational stress. Customers can choose between PTFE soft seals or metal-to-metal options for enhanced compatibility with their process media, whether water, oil, gas, or acids.

FAQ's of SQK Duplex Stainless Steel Gate Valve:

Q: How is the SQK Duplex Stainless Steel Gate Valve typically installed?

A: The SQK gate valve can be installed using flanged, butt-weld (BW), or ring-type joint (RTJ) end connections, accommodating different piping systems. It adheres to ASME B16.10 face-to-face dimensions for seamless integration into standard setups.

Q: What benefits does duplex stainless steel construction provide for this gate valve?

A: Duplex stainless steel (ASTM A890 4A/5A/6A) combines excellent mechanical strength with superior corrosion resistance, making the valve suitable for challenging environments, especially in marine, offshore, and chemical processing applications.

Q: When should I consider using the gear operator instead of the handwheel?

A: A gear operator is recommended for larger valves or where higher operating torque is required due to system pressure. For smaller sizes or frequent operation, a manual handwheel typically suffices.

Q: Where can the SQK gate valve be used effectively?

A: This gate valve is ideal for petrochemical plants, marine systems, offshore installations, power generation, and other settings that handle water, oil, gas, or acidic fluids under varying pressure classes up to 2500LB.

Q: What testing processes does the valve undergo to ensure reliability?

A: Each SQK gate valve is tested to 1.5 times its rated pressure for the body and 1.1 times for the seat to verify integrity and performance, in line with industry standards.

Q: How does the non-rising stem design benefit users?

A: The non-rising stem design (available as a customization) is advantageous in installations with limited vertical space, as the stem does not extend when opening or closing, maintaining compactness.

Q: What are the main usage advantages of the full port design?

A: The full port configuration provides minimal flow resistance and maximizes throughput, making it optimal for applications where maintaining high flow efficiency and reducing pressure drop are desired.

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