5980 Gate valves
·【Main technical parameters】
Structural form: parallel single diec gate valve
Valve size: 1"~ 40"
Nominal pressure: ANSI 150LB~900LB
Type of connection: flange connection（RF、MFM、RTJ）
Material: A215-WCB、A217-WC5、A217-WC9、A217-C5、A351-CF8、A351-CF8M and other alloy steel
Working temperature: -46～300℃ Pay attention to the range of working Temperature and pressure for various materials.
Packing: PTFE + flexible graphite (can be provided with sealing grease structure)
Coating: silver grey (epoxy resin) No coating shall be added if the body material is CFB, CF8M and other stainless steel.
Gate form: with diversion hole, without diversion hole
Characteristic: approximate equal percentage
Seat leakage: zero leakage for compound seal, hard seal ANSI Class IV~ V
·The gate is provided with a ho e with its size the same as that of the body channel. When the valve is fully opened, the gate diversion hole and the body channel form a straight pipe section, which can be scavenged directly by a hair ball.
·The seat always fits the gate during the opening and closing of the gate. During the movement of the gate, the soft seat can automatically scrape off the impurities on the gate. Therefore, the flat gate valve is suitable for media containing suspended granules and fibers, and the seat sealing face will not be damaged by the thermal deformation of the body.
·The two seats are of floating type, having the features of soft and hard compound seal and long service life. When the pressure inside the valve cavity rises abnormally, the floating seat can automatically discharge the high pressure into the pipe.
·There is the grease injection valve at the two seats outside the body. If leakage occurs due to wear of the sealing pair during the use of the valve, the sealing grease can be injected to avoid valve leakage.
·The drainage valve at the bottom of the body can discharge the dirty things accumulated inside the valve.
·【Scope of application】
It is suitable for transportation pipelines and storage equipment for refined oil products, well head equipment for exploitation of petroleum and natural gas, and pipes of media containing suspended granules and fibers.