Parallel type single disc gate valves

source：Xiamen, rhett fluid control co., LTD The information has been viewed： 4051 Time：2013-07-03 11:56:51


Suitable for natural gas, petroleum, chemical industry, environmental protection, city pipeline, gas pipeline and other pipelines, venting system and a storage device, used for hoisting equipment. Plate-type flat gate valve with diversion hole single gate for long transmission pipeline in natural gas extraction and purification.
Product features:
■ seating for elastic preload,, seat while sealing structure. Between valve seat and seal materials always face to face seal.
■ seat with self-cleaning function, and in direct flushing valve to open or close the air flow in the process of.
■ yoke sleeve configuration thrust bearing, minimizes operating torque.
■ seat ring: welded seat rings are perpendicular to the flow channel, easy to maintain.
■ actuator: manual, electric, hydraulic or pneumatic actuator.
■ two piece, self-adjusting gland, to avoid being ejected.
■ integral backseat: hard, long service life.
■ the valve spring load to adjust, reduce actuator torque requirements.
■ with diversion hole valve structure, in the open / closed state, the gate plate and the valve seat sealing surface is not always contact, direct scouring medium, prolong the service life of the.
Technical parameters:
■ nominal size: DN25 ~ DN1000
■ nominal pressure: Class 150 ～ Class 600 PN1.6 ~ PN6.4MPa
■ design standard: API 6D JB/T 5298
■. Structural length: API 6D GB/T 12221
Application: temperature ≤ 550 ℃.
■ flange end: customer requirements.
■ test and inspection: API6D JB/T9092
■ media types: ordinary type, resistance to sulfur
The material of main parts:
The valve body, valve cover: carbon steel, stainless steel, alloy steel
Stem: stainless steel, alloy steel
Ram: stainless steel, alloy steel
Seat: carbon steel, stainless steel, alloy steel and rubber, PTFE, hard alloy
Packing: rubber, PTFE, graphite