Pneumatic operated gate valve with manual override

Introduction :

Pneumatic operated gate valve with manual override is a automatic gate valve driven by compressed air and can be operated manually. When the valve is closed, the wedge is pressed against the valve seat by external force to ensure the tightness of the sealing surface.

In high pressure differential services,  double cylinder pneumatic actuator is preferred. Compared with the single-cylinder pneumatic gate valve, the lifting force is doubled due to the use of a double-layer cylinder structure. This fundamentally solves the problem that the single-cylinder pneumatic gate valve are wedged and cannot be opened.

In order to cooperate with the user to complete the operation automation, the cylinder block including the bracket can also be supplied independently to help the user to transform the existing manual gate valve of various varieties with  a dual-cylinder pneumatic gate valve with manual override.

Features

1. This valve is mainly composed of valve body, valve cover, gate plate, valve stem, sealing ring, double-layer cylinder and its piston, piston rod, diaphragm together with buffer organization, manual organization, pneumatic-manual conversion equipment and valve cover packing equipment etc. some composition.

2. When the upper piston travels to the upper end of the stroke, the upper echo device can be pushed up to make it send a signal; the lower end of the stroke of the lower piston can push down the lower echo device to make it send a signal, which is used as the gate valve opening and closing information in the central operating room is displayed on the imitation outer dial.

3. The rise and fall of the outstretched indicator rod on the upper part of the handwheel indicates whether the gate of the valve is in a rising state or a falling state. When the gate valve is closed, the overhanging indicator rod is at the lowest position; on the contrary, when the gate valve is fully opened, the overhanging indicator rod is at the highest position. This is the on-site indication of the opening and closing status of the valve.

4. The upper part of the cylinder head is equipped with pneumatic-manual conversion equipment. Lift the change handle clockwise to the "pneumatic" positioning hole, and the gate valve is in the pneumatic operation state; on the contrary, lift the change handle counterclockwise to "manual" to position at the hole, and the gate valve can be operated manually. Handles with bevel gears change direction in the opposite direction. When manually operating the gate valve, the handwheel rotation is the same as that of general manual valves, that is, clockwise to close, and counterclockwise to open. Opposite of rotation with bevel gears.

Material of main parts

Major Specification

FAQ:

1.    Q: Do you have any certification for Pneumatic operated gate valve with manual override ?

A: Yes, it is certified by ISO 9001 and SIL Level 3.

2.    Q: Can I get one free sample to try in my market?

A: Sorry, such sample should be charged firstly but can be returned after the regular orders .

3,  Q: Can you customize our design and logo for Pneumatic operated gate valve with manual override ?

A: Yes, we can do ODM and OEM for all customers.

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