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 EG5001/GA6600/GA6700Water hammer relief valve is mainly composed of main valve, high-pressure hydraulic pilot valve, conduit and other parts. It has the function of hydraulic automatic control and high pressure unconditional opening and discharging water hammer. The valve is balanced and vibration free. It has duyiwuer V-shaped opening disc and differential piston design. It can give reliable closing driving force under any working pressure. The regulating performance is Youxu. It runs smoothly and does not produce self closing water hammer. The high sensitive pressure relief pilot valve with large orifice can quickly open the main valve (water hammer relief valve) in response to overpressure conditions. When the pressure subsides, the valve can be closed quickly.

   EG5001/GA6600/GA6700The water hammer relief valve is suitable for the outlet pipe of water pump and the overpressure point of water transmission pipe. It is connected with T-type tee to release the high-pressure water hammer unconditionally. It is an important protection equipment for the pipeline safety of the pumping station.

Nominal diameter: dn40-dn600
Nominal pressure: 1.0mpa-16mpa
Applicable temperature: 0 ℃ - 85 ℃
Connection mode: flange connection
Applicable medium: water
Valve body material: cast steel, carbon steel, stainless steel
Flange standard: gb9112; ANSI bi16.5
Hydraulic slow closing control valve fast closing 90% (1-3 seconds) slow closing 10% (2-60 seconds adjustable)

① Overpressure drainage: the high pressure pilot valve has the function of over control and unconditional overpressure protection;
② Differential piston design: it has reliable closing driving force under any working pressure;
③ Stable operation without vibration: the main valve is designed with V-shaped opening disc, with adjustable performance, stable operation and no valve closing water hammer;
④ Adjustable valve operation, (valve opening program can be automatically adjusted), air cushion damping slow closing, to prevent self closing valve water hammer;
⑤ The valve seat design will shift the position of higher flow rate to the downstream of the valve seat seal, so as to reduce the influence of cavitation on the valve seat;
⑥ Quick response (opening valve for water discharge): the high sensitive relief valve with large channel can quickly open the main valve (water discharge and hammer elimination) after the conditions are satisfied, and close the valve at a controllable speed when the pressure is stable;
⑦ Reliability: the increased size of high-pressure conduit can greatly reduce the risk of blockage and kinking. Elastic valve seat and stainless steel pilot valve are equipped with standard Y-type filter, which has long service life and reliable operation;
⑧ Easy maintenance: Although the valve is installed on the pipe red, all the internal parts can be removed. As long as the top is opened, the parts can be repaired and replaced. The standard isolation valve on the pipe allows quick maintenance of the pilot valve;
⑨ Preset: each valve is tested and preset before delivery, but the valve can be easily adjusted on site according to requirements.

 

DN	50	65	80	100	125	150	200	250	300	350	400	450	500
A	143	145	155	175	200	225	275	325	375	425	475	500	600
B	150	150	165	195	220	240	280	340	390	440	500	530	600
C	250	260	290	310	370	420	460	500	550	630	700	800	850
D	120	130	150	170	200	240	290	350	410	450	530	570	610

Note: the overall dimension of this valve is 1.6Mpa pressure angle type water hammer relief valve. If you need higher pressure size drawing, please contact us.
The imported angle water hammer relief valve has many outstanding characteristics, which make the valve become a reliable, complete and affordable overpressure protection device in the world.

Serial number	Part name	Material name
1	valve body	HT200	QT450	WCB	CF8	CF8M
2	Valve cover	HT200	QT450	WCB	CF8	CF8M
3	valve seat	Bronze, stainless steel			304	316
4	piston	Bronze, stainless steel			304	316
5	V-shaped opening	Bronze, stainless steel			304	316
6	Hydraulic pilot valve	Bronze, stainless steel			304	316
7	Piston ring	N/NBR	N/NBR	N/NBR	N/NBR	N/NBR
8	Seat Tightness	N/NBR	N/NBR	N/NBR	N/NBR	N/NBR
9	Pilot ring	N/NBR	N/NBR	N/NBR	N/NBR	N/NBR
10	Seat backup ring	N/NBR	N/NBR	N/NBR	N/NBR	N/NBR
11	Accessory pipe	N/NBR	N/NBR	N/NBR	N/NBR	N/NBR

GA water hammer relief valve has many outstanding characteristics, which make GA water hammer relief valve become a reliable, complete and affordable overpressure protection device in the world. Stable operation without vibration -- GA water hammer relief valve has duyiwuer's V-shaped opening valve disc and differential piston design, which can give reliable closing driving force under any working pressure, regulating performance and stable operation (without producing valve closing water hammer).