Multifunctional Water Pump Control Valve 745X (11/2"-32")

• Model NO.: 745X
• Standard: Standard
• Power: All Type
• Type: All Type
• Transport Package: Wooden Case
• Origin: Shanghai, China

• Media: Gas, Oil, Water, Acid
• Connection Mode: Flange
• Material: All Type
• Trademark: Qingjiang Valve
• Specification: 11/2"-32"

JD745X Multifunctional Water Pump Control Valve
1. Product Introduction
The super hydraulic control valve we made can be divided into Diaphragm type and Piston type. Both are composed by a main valve, a pilot valve, matching tube, fittings and some other components. According to the different working purposes, function and places, only by changing the pipeline assembly of the pilot valve and the fittings to form a complete control system, different valves with different working performances can be resulted.
2. Structure
This valve has the following two types: Diaphragm type and Piston type. Both are  composed by main valve,  regulator, pilot tube, filter, etc.
 
Diaphragm Type
Piston Type
3. Specifications
4. Features & Working Performance
 4.1 Features:
  This product is Y Type Structure with Double Chamber Operator. While working, it has following advantages: Half-straight flow direction, Large flowing rate, Low Pressure loss, Steady Open and close, No Pressure Fluctuation, etc. Double Chamber Operation Apparatus can be disassembled as a whole, which is easy for inspection. Diaphragm is made of Nylon Reinforced Rubber, which makes it has long service life. Valve Disc sealing gasket can be removed, which is convenient for maintenance.
 4.2 Working Performance:
  Multifunctional Pump Control Valve can be installed in the system pipelines or the outlet of the pump. While normal working, the inlet side medium push the main valve disc lift, then the medium flows into the middle chamber through the flowing regulator, which makes the valve open quickly. When the valve stop working, the outlet side medium flows into the upper chamber through the regulator, the operator will move downwards and make the main and pilot valve disc move downwards, thus the valve can be closed quickly or slowly and avoid the backwards flowing of the medium.
 
5. Main External Dimension
6. Assemble Notification
 6.1 The best assemble direction of the multifunctional pump control valve is horizontal assembling.(i.e. the Bonnet is upwards)
 6.2 Check the medium flowing direction before assembling so as to avoid wrongly assembling.
 6.3 Clean the pipelines before assembling and a strainer needs to be applied in front of the valve, which will avoid the impurity affect the working performance and will prevent the damage of the product.
 6.4 If the working temperature is below 0, heat insulation materials need to be used.
 6.5 There must be enough space to assemble the Multifunctional Pump Control Valve. And the control valve needs to applied behind the check valve. The details can be referenced the assembling drawing.
 
7. Notifications
 7.1 Check the condition of the pilot valve, matching pipes and fittings before operation.
 7.2 Check if the regulator on the pilot valve and matching pipes can work flexibly.
 7.3 Maintain the pipelines after operating the system for some time.
 
8. Testing Methods
 8.1 Open the globe valve 3,12 ( 3, 13 of the Piston type.)
 8.2 Let the pump start working and check if the inlet and outlet pressure is normal.
 8.3 Let the pump stop working and check if there is water hammer and if the pump act reversely.
 8.4 If the water hammer is big, then need to open less of the globe valve.
 8.5 If the pump acts reversely, then need to open more of the globe valve
 
9 Malfunction maintenance

Our company introduction:
Shanghai Qingjiang Valve Manufacturing Co, . Ltd. Is located in Shanghai Fengxian Industrial Zone, is a commitment to scientific research, production, sales of professional valve manufacturer. 
Company to an international metropolis -- Shanghai as the basis, make full use of regional advantages and industry, is committed to the introduction of international advanced management experience and technological innovation, and actively promote the enterprise comprehensive strength, and expand market share, formed with the gate valve, globe valve, ball valve, check valve, butterfly valve, hydraulic control valve, balance valve, relief valve, regulating valve and so on more than 60 series nearly 1000 varieties of products structure. Products nominal diameter is 1/4"-80" (DN6-2600mm) pressure 0.1MPa - 32.0MPa, temperature -196-595º C. Valve of the main materials are cast iron, ductile iron, carbon steel, alloy steel, stainless steel, copper and other materials, and according to the special needs of customers and manufacture of metal products. Widely used in construction, municipal, water supply and drainage, HVAC, fire, electricity, metallurgical, petrochemical, gas and other industries, and exported to the Middle East. Europe and the United States and Southeast Asia and other countries and regions. High quality wins the customer the consistent high praise and trust.