Electric remote control valve J145X
I. Introduction:
The J145X Electric Remote Control Valve consists of a main valve, a regulating valve, and a piping system. The valve body adopts a straight-through type, and the main valve control chamber features a dual-chamber structure with either a diaphragm or piston design. Compared to general hydraulic control valves, it has one additional control chamber, enhancing the control functions over the main valve. This enables multi-functional control of the pump outlet, including slow opening, full opening, slow closing, and shut-off, achieving multi-functional control of the pump outlet with a single valve and one adjustment. The piping system of this product is controlled by the regulating valve. By setting the opening of the regulating valve, various required control parameters can be easily achieved, such as the opening speed and slow closing speed of the main valve.
II. Product Features:
1. Excellent water hammer prevention effect. It integrates technologies for eliminating water hammer, such as slow opening, check quick closing, and slow closing, preventing damage to the water supply pipeline and pump caused by water hammer during pump start-up and backflow and water hammer during pump shutdown.
2. Easy to operate. No additional electronic control system is required for the valve. The valve automatically completes control functions in sequence along with the start and stop of the pump. Appropriate control parameters can be obtained by setting the opening of the regulating valve.
3. The valve body adopts a full-channel, straight-through, and streamlined design. It has small hydraulic loss and good energy-saving effect.
III. Working Principle:
1. After the pump starts, water pressure acts on the lower part of the main valve disc and the lower chamber of the control chamber, which opens the main valve. Water in the upper chamber of the control chamber slowly drains to the outlet end through the regulating valve B, causing the main valve to open slowly. Appropriate opening speed of the main valve can be obtained by setting the opening of the regulating valve.
2. When the pump stops working, the water pressure at the inlet end drops rapidly. Under the action of its own weight and spring pressure, most of the valve opening closes quickly to prevent water backflow. The remaining opening closes slowly under the combined action of water pressure in the upper and lower chambers of the control chamber. The slow closing speed forms a buffer to prevent a sharp increase in pressure.
Appropriate valve opening and closing speeds can be obtained by setting the opening and opening ratio of regulating valves A and B.
III. Technical Parameters:
Nominal Pressure (Mpa) | Shell Test Pressure (MPa) | Seal Test Pressure (MPa) | Applicable Medium | Medium Temperature (℃) |
1.0 | 1.5 | 1.1 | Water | 0-80 |
1.6 | 2.4 | 1.76 | ||
2.5 | 3.75 | 2.75 |
IV. Part Materials:
Part Name | Part Material |
Valve Body & Bonnet | WCB |
Valve Seat & Disc | Copper Alloy |
Seal Ring & O-Ring | Tetrafluoro Rubber |
Stem | 2Cr13 |
Spring | 50CrVA |
Pilot Valve | Copper Alloy |
Ball Valve | Copper Alloy |
Pressure Relief/Sustaining Pilot Valve | Copper Alloy |
Mini Filter | Stainless Steel |
| Machinery & Equipment/Valves/Other Valves | |
