Plug valve electric pneumatic saishida manual plug valve large diameter baffle doo

  Gate valve, also known as manual knife gate valve
Knife gate valve is a valve in which the gate and valve seat are always in close contact and sealed
Its principle is that the gate is provided with a circular opening of the size of the diameter
Through the opening and closing of the gate, the circular opening of the gate is completely separated from and consistent with the diameter
The valve has the advantages that the valve body has no groove in the diameter, the medium will not be blocked, and has full diameter flow characteristics
Its sealing structure can be divided into soft sealing and hard sealing structures
The penetrating knife gate valve has the characteristics of precise structure, good manufacturability and compact structure
The sealing valve seat is designed as a movable structure and has the functions of anti-wear and automatic compensation, so it has a longer service life
In the process of closing and opening, the valve seat has been close to the gate, which makes the opening and closing force of the valve stable, and has the characteristics of cutting off the medium

Performance valve leakage rate: ≤ 1
3× 10-7Pa
L/S

Applicable temperature: - 30 ~ + 150 ℃
Scope of application: 105 ~ 1
3 & times; Differential pressure on both sides of the valve plate when the 10-7pa valve is opened: ≤ 2
7× 103Pa
Material of main parts
  Valve body and plate: stainless steel

Seals: fluororubber, bellows (shaft seal), nitrile rubber

The manual gate valve with connection size (mm), also known as manual gate valve and manual screw gate valve, is mainly composed of frame, gate, screw rod, nut, hand wheel and other parts
By manually turning the hand wheel, the screw rod drives the gate to move up and down repeatedly along the water square, so that the manual gate valve can achieve the purpose of opening and closing