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700X Features

700X pump control valve is installed at the pump's outlet in high building and other feeding system to prevent fluid flowing backwards. Before the pump stops, the valve closes 90% or so ahead to prevent water hammering and water hitting at the pump's instant stop; after the pump completely stops, the valve closes fully to prevent fluid flowing backwards at the outlet of the pump to protect the pump and prevent it from turning backwards due to backward flow of the fluid. This is necessary protection equipment for the pump. It is flow-line designed and it can open or close to electric-magnetic valve's pilot. It is safe to use and it is easy to install and to maintain this kind of valve.

Supplier: Saitai Valve, China
Manufacturer: Shop in Shanghai Qingpu Industrial Park

1. Needle Valve
2. Check Valve
3. Stroke Switch
4. Solenoid Valve
5. Check Valve

JD745X Features

JD745X pump control valve is mounted on the water pumps outlet pipeline of the high buildings and other water supply systems to prevent of the mediums back-flow and the water hammer and water shock.
JD745X pump control valve has good effect of water hammer removal. Integrating the technical principles of water hammer removal by means of slow open, quick close and slow close, so as to prevent of the water hammers at both pump start and stop.
Easy operation. The valve will open or close automatically as per the operation procedures of the pump, once operates the On-Off button of the pumps motor.
Good effect of energy saving. The valve body is designed as full-path straight-flow type, resulting in small pressure loss, big flow, small volume and light weight.

Diaphragm actuated
1. Strainer
2. Small Ball Valve
3. Strainer
4. Small Ball Valve

Piston actuated
1. Strainer
2. Small Ball Valve
3. Strainer
4. Small Ball Valve

Technical Parameters

Nominal Pressure: 1.0, 1.6, 2.5MPa
Shell test pressure: 1.5, 2.4, 3.75MPa
Sealed test pressure : 1.1, 1.76, 2.75MPa
Suitable temperature: 80
Suitable medium: water, Sewage

Materials

No.	Part	Material
1	Plug	Alloy Bronze
2	Body	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
3	Seat	2Cr13 / SS 304 / SS 316
4	O-Ring	NBR
5	O-Ring	NBR
6	O-Ring Retainer	Cast Iron
7	Stem	2Cr13 / SS 304 / SS 316
8	Disc	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
9	Diaphragm	Rubber
10	Diaphragm washer	Cast Iron
11	Nut	Alloy Bronze
12	Ball valve	Alloy Bronze
13	Spring	Stainless steel
14	Cover	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
15	Pilot socket	Alloy Bronze
16	Solenoid valve	Alloy Bronze
17	One-way valve	Alloy Bronze
18	On/Off
19	Yoke	Steel
20	Limitation piece	Alloy Bronze
21	Plug	Alloy Bronze
22	Metering	2Cr13
23	One-way valve	Alloy Bronze
24	Needle Valve	Alloy Bronze
25	Nut	Steel
26	Screw	Steel
27	Ball valve	Alloy Bronze
28	Pressure Gauge
29	Connection Pipe	Alloy Bronze

Dimensions

700X

JD745X

Typical Installation

700X

J745X

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