Power plant check valve

详情

Product overview
H*1Y***0 H*1Y***0 H*1Y***0 high voltage valve pipe ends welded structure, welding groove can be made according to the standard or user requirements, is suitable for the thermal power plant, petrochemical, metallurgical and other high temperature and high pressure steam, water, oil, steam pipe for preventing device of medium flow. One is the introduction of ANSIB*6.*4 and JIS type according to E**1 standard; the other is a national standard Jb***5 standard. Temperature and pressure rating of the following is the same, in some pipeline there are some exchange relation. In the middle of the valve cover junction valve pressure, has good sealing performance under high temperature and high pressure conditions. Self sealing ring has two kinds: one kind is the low carbon steel materials, the other is a flexible graphite with **6 wire (network). Sealing surface is welded cobalt base hard alloy. The processing of pure metal layer is more than or equal to 3mm, with a wear-resistant, high temperature resistance, corrosion resistance, abrasion resistance, long service life.
Structure characteristics:
1, the valve flap quenching, and can move on the body, medium back, by the medium pressure and the automatic valve valve spring.
2, valve body, valve cover for die forgings.
3, the valve seat sealing surface using cobalt based alloy plasma spray surface. Wear resistance and good anti abrasion performance.
4, check valve should be installed in horizontal pipelines medium flows from down to up.
Execution standard:
1. The design and manufacture and acceptance by thermal power valve standard ANSIB*6.*4 API6D GB****6 E**1 and JB/T***5, DL/T**1 prescribed standards.
2, the structure length by E**1, JB/T***6, GB/T****8.1 ANSIB*6.*0 GB****1 standard or according to user requirements.
3, pressure - temperature level by E**1, JB/T***5 API**8 GB***1 prescribed standards.
4, according to the welding groove size GB****4, JB/T***5, ASME B*6.*5 ANSIB*6.*5 standard rules or according to the size of the user piping requirements.