Slow-closing micro-resistance check valve -Shanghai Kaihe Valve Group Co., Ltd.

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Slow-closing micro-resistance check valve

Model: HH44X
Nominal pressure: PN1.0 ~ 2.5MPa
Nominal diameter: DN40 ~ 800mm
Suitable medium: water, weak corrosive liquids
Suitable temperature: 0 ~ 80 ℃ (if necessary, up to 200 ℃)
Flange Standard: GB / T 17241.6 GB / T 9113
Test standard: GB / T 13927 AP1598

Product details

HH44X micro-resistance slow closing check valve product overview

The micro-resistance slow closing check valve is used for water supply and drainage pipe, which is installed at the outlet of the water pump to prevent the countercurrent of the medium and eliminate the destructive water hammer, and effectively reduce the water hammer pressure of the valve to close to ensure the safe operation of the pipe network. The utility model has the advantages of light valve flap, large opening degree, remarkable energy saving effect, small fluid resistance, novel design of a water hammer eliminating mechanism, stable and reliable sealing performance, wear resistance, long service life, stable operation, no vibration and no noise.

HH44X micro-slow slow closing check valve main components and materials

Part Name	Body, bonnet	Disc	Valve shaft
material	Gray cast iron, cast steel	Steel plate, rubber assembly	stainless steel

HH44X micro-resistance slow closing check valve main shape connection size 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

DN (mm)	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
H	200	230	290	310	350	400	480	500	600	700	800	900	1000	1100	1300	1400	1500
L	300	300	320	354	350	380	500	580	670	730	820	920	950	1100	1200	1550	1700
B	220	270	290	300	320	340	410	450	550	580	630	700	800	900	990	1120	1300