Classification

Diaphragm type multifunctional water pump control valve

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Classification:

Ductile iron valve series

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400-6166669

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Description

A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.

◆ Product overview

JD745X diaphragm multifunctional pump control valve is installed in the high-rise building water supply system and other water supply system of the pump outlet, to prevent the media back, water hammer and water hammer phenomenon of intelligent valve. The valve has three functions of electric valve, check valve and water hammer eliminator, which can effectively improve the safety and reliability of water supply system. The technical principles of slow opening, quick closing and slow closing to eliminate water hammer are integrated to prevent the generation of water hammer at pump start and pump stop. Just operate the pump motor opening and closing button, the valve can be automatically opened and closed according to the pump operating procedures, with large flow and small pressure loss. Diaphragm type is suitable for valves below DN600mm caliber.

◆ Typical installation diagram

◆ Main outline connection dimension

DN		50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000	1200
L	PN1.0MPa	240	300	310	320	390	460	540	610	700	800	980	1050	1100	1300	1520	1750	1800	2000	2350
	PN1.6MPa	240	300	310	320	390	460	540	640	800	800	980	1050	1140	1350	1550	1750	1850	2050	2400
	PN2.5MPa	250	300	310	350	410	470	560	670	800	820	1000	1060	1140	1350	1550	1750	1900	-	-
	PN4.0MPa	265	340	340	370	420	470	560	670	860	940	1020	1100	1180	-	-	-	-	-	-
H		293	328	364	418	481	543	673	729	927	957	1188	1218	1256	1600	1800	1870	1980	2300	2860

Note: The structure length in this table is based on CJ/T 167 standard.