DUPLEX GATE VALVE MANUFACTURERS IN INDIA

Speciality Valve is one of the leading Duplex gate valve manufacturers in India, providing quality valves for harsh and corrosive industrial applications. The duplex stainless steel, with its distinctive mix of austenitic and ferritic microstructures, offers superior strength, superior corrosion resistance, and longer service life—making it perfect to produce strong gate valves.

Why Required?

Duplex gate valves are critical in industries where mechanical stress, high pressure, and corrosive media are prevalent. The valves need to provide leak-tight shut-off, free operation, and dependable performance under hostile conditions where conventional materials would deteriorate or fail rapidly.

Major Components of Duplex Gate Valve:

1) Body & Bonnet: Constructed of Duplex stainless steel for pressure and corrosion resistance
2) Gate (Wedge): Operates vertically to regulate fluid flow
3) Stem: Relays motion from handwheel or actuator to the gate
4) Seat Rings: Allow for close shut-off sealing
5) Gland Packing & Bushings: Keep out leakage and allow smooth movement of stem

Working of Duplex Gate Valve:

Duplex gate valves are actuated by a rising or non-rising stem mechanism. Upon turning the handwheel or actuator, the gate (a flexible or solid wedge) travels up or down in the valve body. This linear motion allows or prevents fluid flow, providing minimal pressure drop when fully open.

Benefits of Duplex Gate Valve

1) High mechanical strength and durability
2) Very good resistance to chloride stress corrosion cracking
3) Suited for high-temperature and high-pressure service
4) Low maintenance with extended service life
5) Unobstructed flow is ensured through full bore design

Functions of Duplex Gate Valve:

1) Separates fluid flow in pipes
2) Facilitates full open or closing action
3) Provides safe shutdown in the event of maintenance or emergencies

Types of Duplex Gate Valve:

1) Rising stem gate valve
2) Non-rising stem gate valve

Industries Where Used:

1) Oil & gas
2) Petrochemical and refinery
3) Marine and offshore
4) Power generation
5) Water and wastewater treatment

As trusted Duplex gate valve manufacturers in India, Speciality Valve manufactures valves that are suitable for hostile environments. Our Duplex gate valves are international standards compliant and engineered for smooth performance and long service even in the most corrosive and high-pressure services.

Why Choose Us?

1) Carefully engineered with certified Duplex materials
2) Tailored valve solutions for every industrial requirement
3) Timely delivery and responsive customer support
4) Proven quality and performance guaranteed by testing

Speciality Valve continues to be the top preference among Duplex gate valve manufacturers in India, providing better products for demanding industrial use. Select our valves for their durability, safety, and smooth flow control in demanding environments.

Description:

Body Material: Duplex Steel (F51, F53, 4A, 5A), ASTM A995, A890
Size: 1/2″- 64”
Class: 150 to 2500
Nominal Pressure: PN10 to PN450
Operations: Hand Wheel, Gear operated, Electric, and Pneumatic Actuated
Ends: Flanged, Buttweld, Socket weld, Threaded
Standards: API607, DIN, BS, ANSI, ASME, API6D, AWWA