The gate valve disc type is a shut-off valve that controls fluid flow by raising or lowering a flat disc perpendicular to the pipeline. The gate valve disc type manufactured from high-quality cast steel, stainless steel, or other materials, its precision-lapped disc and seat provide a tight seal.

Product Parameters

Item	Common Specifications
Nominal Diameter (DN)	50mm ~ 600mm
Pressure Rating (PN)	1.0MPa, 1.6MPa, 2.5MPa, 4.0MPa
Body Material	Carbon Steel WCB, Stainless Steel 304/316, Alloy Steel
Connection Type	Flanged, Butt-Weld
Operation Type	Handwheel, Gearbox, Electric, Pneumatic
Temperature Range	-29℃ ~ 425℃ (Depending on material & seal)

Product Advantages

High Cost-Effectiveness: The robust, low-maintenance design and long service life result in minimal total cost of ownership over the valve's lifespan.
Operational Efficiency & Savings: The full-port, low-flow-resistance design reduces pumping energy costs, while reliable sealing prevents costly leaks and downtime.
Durable & Reduced Replacement Cost: Solid construction and high-quality materials ensure exceptional durability under pressure, delaying the need for capital replacement.

Main Applications

Petrochemical Systems: For isolating flow in pipelines carrying crude oil, refined products, and chemicals.
Power Industry: As main isolation valves in steam lines and water feed systems.
Municipal Water Services: For flow control in water treatment and distribution networks.

Frequently Asked Questions (FAQ)

Q1: What is the difference between a parallel disc gate valve and a wedge gate valve? How do I choose?

A1: Parallel disc gate valves use flat, parallel sealing faces, making them suitable for media containing particles or prone to scaling. Wedge gate valves use angled sealing faces for a tighter seal but are more susceptible to damage from impurities. Selection depends on media cleanliness, pressure/temperature, and sealing requirements. We can recommend the suitable type based on your specific operating conditions.

Q2: Can a parallel disc gate valve be used for throttling or flow regulation?

A2: It is not recommended. Gate valves are designed primarily for full open or full close service. If kept partially open, high-velocity flow can cause erosion of the sealing faces, compromising sealing performance and valve lifespan. For flow regulation, we recommend using a dedicated control valve or globe valve.

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