JIS 5K 10K Marine Ship Cast Iron Steel Gate Valve Water Flow
Pressure 1 2 5 Inch
JIS 5K Dimensions
The gate valve is a gate for opening and closing. The movement
direction of the gate is perpendicular to the direction of the
fluid. The gate valve can only be fully opened and fully closed,
and cannot be adjusted or throttled.
The gate valve is sealed by the contact between the valve seat and
the gate plate, and the sealing surface is usually welded with
metal materials to increase wear resistance, such as 1Cr13, STL6,
stainless steel, etc.
The gate has a rigid gate and an elastic gate. According to the
difference of the gate, the gate valve is divided into a rigid gate
valve and an elastic gate valve.
According to structural characteristics
The structural characteristics of the valve are based on the
direction in which the closing member moves relative to the valve
(1) Sectional gate shape:
The closing piece moves along the center of the valve seat; such as
a globe valve
(2) Cock and ball:
the closing part is a plunger or a ball, which rotates around its
own centerline; such as a plug valve, a ball valve
(3) Gate shape:
The closing part moves along the center of the vertical valve seat;
such as gate valve, gate, etc.
(4) Swing shape:
the closing part rotates around the axis outside the valve seat;
such as swing check valve, etc.
(5) Butterfly shape:
the disc of the closing member, which rotates around the axis in
the valve seat; such as butterfly valve, butterfly check valve,
(6) Slide valve shape:
the closing piece slides in the direction perpendicular to the
Press connection method
1. Threaded connection valve: the valve body has internal or
external thread, and is connected to the pipe thread.
2. Flange connection valve: The valve body has a flange and is
connected with the pipeline flange.
3. Welding connection valve: The valve body has a welding groove,
which is welded to the pipeline.
4. Clamp-connected valve: The valve body has a clamp, which is
connected with the pipe clamp.
5. Ferrule connection valve: the ferrule is connected to the
6. Wafer connection valve: a connection form that directly clamps
the valve and the two pipes together with bolts.