1. Material Parameters

• Valve Body / Valve Cover / Gate: Cast steel (WCB, suitable for conventional working conditions), Chromium-Molybdenum Steel (WC6/WC9, high temperature and high pressure resistance)

• Sealing Surface: Hard alloy weld overlay (wear resistant), Stainless steel (304/316, corrosion resistant)

• Valve Stem: Stainless steel (2Cr13, 304)

• Packing: Graphite packing (high temperature resistance), PTFE packing (acid and alkali resistant)

• Handwheel: Cast iron, cast steel

2. Specification Parameters

• Nominal Diameter: DN50~DN600 (corresponding to 2"~24")

• Nominal Pressure: PN16, PN25, PN40, PN63 (suitable for medium and high pressure pipelines)

• Connection Method: Flange connection (GB/T, ANSI, DIN, etc. standards)

3. Operating Parameters

• Operation Method: Manual handwheel drive, gate opening and closing controlled by valve stem lifting.

• Operating Temperature: -29℃~425℃ (WCB material); -29℃~595℃ (WC6/WC9 material)

• Sealing Grade: GB/T 13927-2008 Class IV (Hard Seal)

• Reliable Sealing, Suitable for High Pressure: The hard sealing surface (hard alloy weld overlay) is wear-resistant and has excellent sealing performance, suitable for high-pressure conditions of PN63 and above, eliminating the risk of leakage.

• Low Flow Resistance: When fully open, the gate is completely separated from the flow channel, and the fluid is transported along a straight channel with extremely low pressure loss, suitable for high-flow pipelines.

• High Material Strength, Long Service Life: The cast steel valve body has good temperature and pressure resistance, and can operate stably for a long time under medium-high pressure and medium-high temperature conditions, with long maintenance cycles.

• Stable Installation: The flange connection method has a large sealing surface contact area and high connection strength, suitable for long-term operation of large-diameter, high-pressure pipelines.

• Petrochemical Industry: High-pressure pipelines for crude oil, refined oil, and chemical raw materials, used for fluid cutoff control in plant areas and tank areas.

• Power Energy Industry: Steam pipelines and cooling water pipelines in thermal power plants and nuclear power plants, suitable for system isolation under high-temperature and high-pressure conditions.

• Municipal engineering: Urban gas trunk lines and high-pressure water supply and drainage pipelines, used for network zone control and maintenance isolation.

• Metallurgical and mining: High-temperature fluid pipelines in metallurgical workshops and high-pressure water supply systems in mines, enabling isolation and cutoff of equipment and pipelines.