从China供应商批量进口25 Dn 50-1000mm Cast Steel Electric Gate Valve

The Z941H-16C/25C series is a cast steel electric gate valve with nominal diameters from DN50 to DN1000, designed for full open/close isolation service rather than throttling applications. The body, bonnet and wedge are cast from WCB carbon steel, with a valve stem in WCB or 2Cr13 stainless steel and a stem nut in ductile iron or brass. Electric actuation provides remote operation for pipeline systems handling water, steam or oil at medium temperatures from -29 degrees C to 425 degrees C. Flange or welding connection methods are available, with working pressure ratings of 1.6 MPa and 2.5 MPa corresponding to the 16C and 25C pressure class designations.

The valve construction follows a compact, rigid body design with a straight-through flow passage to minimise pressure drop when fully open. Flexible graphite packing ensures stem sealing reliability across the rated temperature range. The disc sealing surface is plasma-welded for wear resistance, and the manufacturer states that all castings undergo tempering before machining, with CNC lathe finishing throughout production. Each unit receives factory pressure testing before shipment. Typical industry practice for this class of valve includes hydrostatic shell tests at 1.5 times the rated pressure and seat tests at 1.1 times rated pressure.

Primary applications span petroleum refining, chemical processing, power generation, paper making, fertiliser production, coal mining and water treatment facilities. Buyers should confirm the electric actuator brand, voltage, IP rating and control protocol, as these are not specified in the listing. The supplier indicates capability to produce to GB, JB, API, ANSI, BS, DIN, JIS and GOST standards, though the specific standard to which any quoted valve is built must be confirmed directly. Packaging is typically in wooden cases for export, but confirm dimensions and fumigation certification with the supplier.

Hebei Yaosheng Im & Ex Trading Co., Ltd is located in Xushui Industrial Park, Baoding, Hebei Province, with the postal code 072550. The supplier holds a harbor trust tier on the platform, with a response rate of 0.00 percent and no recorded average response hours, which indicates that direct communication may be slow and buyers should allow extra time for quotation and technical clarification. The company states it has been manufacturing valves since 1992 and holds CE, API and ISO approvals, though the specific certificate numbers and scopes are not provided in the listing and should be verified directly.

The supplier's production scope covers standard valves across multiple national standards including GB, JB, US API, ANSI, British BS, German DIN, Japanese JIS and GOST series. The listing references sand or precision casting capability, CNC lathe machining, plasma welding of disc sealing surfaces and factory pressure testing for every valve. No factory size, annual output, employee count or named client references are given. Buyers should request audited factory documentation, specific API licence numbers and recent third-party inspection reports before placing a substantial order.