Hydraulic sector blind flange valve
Structure features
The valve mainly consists of left valve body, right vale body, screw rod auxiliary, folding plate, valve sealing auxiliary, lever, hydraulic oil cylinder and other parts, and the base seat and the support pillar constitute one rigid structure. It sets with clamp oil cylinder and flap oil cylinder in the valve, the clamp oil cylinder finishes loosening and clamping through lever and screw rod spiral auxiliary driving left and right valve bodies, and flap oil cylinder drives valve disc to finish switching. The rubber sealing ring is inserted into vale disc, who has the features of anti-high temperature, convenient replacement, long service life and so on.
The valve can be controlled remotely alone, and also can be controlled by various stands remotely. It also can be operated manually by valve’s own device under irregular condition.
Applicable scope
It is widely applied for gas medium management system of industry and mining enterprises, municipal administration, environmental protection, etc., especially applied for absolute cut-off of the harmful, poisonous and flammable gases. It is also suitable to be used as the blind flange of pipeline terminal to shorten maintenance time or be convenient to connect new pipelines.
Main technical parameter
|
Nominal diameter
|
DN(mm)
|
300~2000
|
|
Nominal pressure
|
PN(MPa)
|
0.25
|
0.15
|
0.10
|
0.05
|
|
Test pressure
|
Sealing test
|
0.275
|
0.165
|
0.11
|
0.055
|
|
Strength test
|
0.40
|
0.225
|
0.15
|
0.075
|
|
Applicable temperature
|
Butyronitrile rubber
|
Silicon rubber
|
Fluorous rubber
|
|
|
|
|
|
Less than 120℃
|
Less than 250℃
|
Less than 300℃
|
|
Applicable medium
|
Gas and other poisonous, harmful and flammable gases
|
