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Brass gate valve series

Brass gate valve series

Word:[Big][Middle][Small] 2018/8/9    Viewed:    
黄铜闸阀系列

Overview

The opening and closing part of the gate valve is the ram. Your direction of motion is perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed. It cannot be adjusted and throttled. It is widely used in water supply systems.


Characteristics

1. The flow resistance is small. The inner medium passage of the valve body is straight through, the medium flows in a straight line, and the flow resistance is small.

2. The capping structure is adopted for easy adjustment.

3. The valve body and the valve cover are sealed by gaskets, which is convenient for disassembly and maintenance.

4. It is more labor-saving when opening and closing. Compared with the shut-off valve, the direction of movement of the shutter is perpendicular to the direction of the cut-off flow, whether it is open or closed.


Gate valve instructions

The opening and closing member of the gate valve is perpendicular to the fluid direction of the gate. The gate valve can only be fully open and fully closed, and cannot be adjusted and throttled. It is widely used in water supply systems.

1. Gate valve - internal thread, flange, welded connection. The shell and the ram are hot forged and tempered, and the sealing surface is cut by a high-precision sealing surface. The sealing test strictly implements GB/T13927-2008 "Industrial General Valve Pressure Test", and the pipe thread precision and effective length are strictly implemented ISO228. The test pass rate is high before leaving the factory.

2. When installing: Use the corresponding torque wrench or pipe wrench, and screw the hexagonal or octagonal part of the same side of the thread into the effective length of the thread. Do not excessively cause the inner end surface to be pressed. Screw in with Teflon tape or thread sealant for sealing.

3. The hand wheel is designed according to the corresponding torque. Do not use the variable force arm instead to avoid damage to the valve. The valve stem sealing packing is PTFE. If the corrosion leaks, the packing can be tightened by tightening the pressure cover. The medium pressure should be removed to replace the packing. For the refrigeration, the HVAC system ball valve must be 1.6MPa (or above the nominal pressure) specification valve.

4. When installing the flange ball valve, ensure that the flange faces at both ends of the pipe are parallel and coaxial, the spacing is suitable, the connection pupil is corresponding, and the deviation should not be too large, otherwise the valve installation quality and sealing performance will be affected.

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