Description

This flanged cast iron gate valve is designed for industrial piping systems. Featuring a metal-seated design, it is engineered for durability in high temperature applications involving water and steam. The valve construction adheres to standards common in Russian/GOST specifications and Chinese GB standards, offering reliable shut-off capabilities for general utility services.

Technical Specifications:

Nominal Diameter (DN): DN50 – DN300
Nominal Pressure (PN): 1.0 MPa (PN10)
Test Pressure (Shell/Water): 1.5 MPa
Test Pressure (Seal/Water): 1.1 MPa
Suitable Temperature: -10°C to 200°C
Applicable Medium: Water, Steam

Main Parts and Materials:

Part Name	Material
Body, Bonnet, Disc, Wedge	Cast Iron
Stem	Q235 Steel (Carbon Steel)
Stem Nut, Handwheel, Packing Gland	Cast Iron
Bolts	35# Steel
Nuts	25# Steel
Packing	Flexible Graphite
Bonnet Gasket	Asbestos Rubber Plate (XB200)<br>

Key Product Features:

Metal-Seated Design: Engineered for durability in high-temperature applications, providing a robust metal-to-metal seal that resists thermal degradation.
High-Temperature Capability: Specifically rated for continuous service up to 200°C, making it highly suitable for steam and hot water distribution.
Robust Stem Construction: Utilizes a Q235 carbon steel stem paired with cast iron stem nuts and handwheels for reliable, heavy-duty operation.
Secure Sealing System: Features flexible graphite stem packing and an XB200 asbestos rubber plate bonnet gasket to ensure a leak-tight seal under thermal cycling.
Rigorous Testing: Manufactured and tested to strict GOST/GB standards (1.5 MPa shell and 1.1 MPa seal tests) to guarantee safety and reliability in utility services.

Applications:

Ideal for Municipal Heating Networks, Industrial Steam Lines, Boiler Feed Systems, and General Utility Water Distribution. Specifically suited for environments where high temperatures and strict adherence to GOST/GB standards are required.