There are two standard forms of gate valves for high temperature and high pressure power plants, one is the imported type that follows ANSIB16.34 and JISL1E101 standards, and the other is the national standard type that follows JB3595 standards The temperature pressure rating it follows is consistent, and there is a certain exchange relationship in some pipelines. The central part adopts a pressure self tightening type without valve cover, which has good sealing performance under high temperature and high pressure conditions. There are two types of materials for self sealing rings, one is low-carbon steel, and the other is flexible graphite 316 wire (mesh). The upper layer of the sealing surface is welded with drill based hard alloy, and the processed pure metal layer is ≥ 3mm, which has wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, and long service life. The two ends of the branch pipe are welded structures, and the welding groove can be made according to standards or user requirements. Suitable for pipelines of high-temperature and high-pressure water, steam, oil products, and superheated steam in thermal power plants, petrochemicals, metallurgy, and other industries.
Product Structure Features:

Central non valve cover pressure self tightening connection
2. The gate is a wedge type elastic single gate or wedge type double gate structure
3. Double sided overlay welding of gate/valve seat with drilling based hard alloy
4. High temperature creep resistance design
5. The valve stem is made of nitriding precipitation hardened stainless steel
6. There are manual, gear (bevel gear and spur gear) transmission, and electric

Material Description of Main Components:

Product model: Z962H-200 Z962H-200 Z962Y-250 Z960Y-250 Z960Y-320Z962Y-P 54 100V Z962Y-P 54 140V Z960Y-P 54 140V Z960Y-P 54 170V

Note:
1. The technical conditions for licensing and acceptance shall comply with the provisions of E101 and B3595-93.
2. The valve test shall comply with the provisions of JB3595-93 and JB3595-93, and the pressure for valve sealing test and upper sealing test shall comply with the provisions of JB3595-93.
3. The structural length shall be in accordance with E101 specifications or the dimensions provided by the user.
4. Welding groove shall be in accordance with the management standard 78DG of the power industry or according to the size provided by the user.

Main dimensions and weight