Product description

        The American standard high temperature and high pressure welded gate valve is an imported type that follows the ANSIB16.34 and JISL1 E101 standards. The middle part adopts non-bonnet pressure self-tightening type, which has good sealing performance under high temperature and high pressure conditions. There are two materials for the self-sealing ring, one is low carbon steel, and the other is flexible graphite 316 wire (mesh). The sealing surface is welded with drill-based cemented carbide, and the processed pure metal layer is ≥3mm, which has the advantages of wear resistance, high temperature resistance, corrosion resistance, scratch resistance, and long service life. Both ends of the branch pipe are of welding structure, and the welding groove can be made according to standards or user requirements. The valve is suitable for high temperature and high pressure water, steam, oil, superheated steam pipelines in thermal power plants, petrochemicals, metallurgy, etc.

Features

1. The shell adopts two process options of forging and casting, with smooth appearance and uniform organization, which can meet the requirements of high temperature and high pressure; a full range of fully forged steel gate valves can be provided according to user needs;

2. Special materials are matched to ensure high hardness and poor hardness of the sealing surface; precision grinding, smooth and clean like a mirror, wear-resistant and corrosion-resistant, and effectively extend the service life;

3. The back seal design effectively protects the sealing packing and prevents leakage;

4. Multi-channel testing such as high-pressure water intensity, high-pressure gas intensity, non-destructive testing, etc., to fully control the quality of pressure-bearing parts;

5. The surface of the valve stem is precision ground and hardened, which is resistant to scratches and corrosion, effectively reducing the opening and closing torque and making the operation easier;

6. The use of special corrosion-inhibiting packing structure design, temperature and pressure resistance, non-corrosion, automatic lubrication, reduce opening and closing friction, avoid corrosion on the surface of the valve stem, and avoid leakage;

7. The two-way pressure-bearing seal design meets the demanding requirements of various special working conditions.

Material of main parts

Main external connection dimensions (CL1500-2000)

Main external connection dimensions (CL2500-3500)