Hh47X Butterfly Slow Closing Check Valve

• Media: Water-Vapour Oil
• Temperature: Low Temperature
• Material: Stainless Steel Carbon Steel Brass
• Connection Form: Flange Welding
• Structure: Swing
• Pressure: High Pressure, Medium Pressure and Low Pressure
• Model NO.: HH47X
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Hard Seal and Soft Seal
• Flow Direction: Unidirection
• Standard: DIN GB ANSI Bsw JIS
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 9999

Product Description

DHH44X/H-10/16 type micro retarding closure noise check valve is mainly used in industrial, urban water supply and drainage pipelines and high-rise residential buildings, senior hotels, pressurized water pump outlet. In the design fully consider the requirements of the use of the environment, the use of inclined plate structure, to achieve no vibration, no noise, stable operation, to ensure that the hotel, the residential environment is quiet, and has the effect of energy saving. By delaying closure, the local backflow water is discharged into the system, which greatly reduces the hydraulic pressure of stopping the pump backflow and eliminates the generation of destructive water hammer peak. The interception seal is made of nitrile rubber, which has the characteristics of good sealing performance, shock absorption and wear resistance, long service life and convenient maintenance.

Technical parameters

Applicable temperature: 0 ~ 80ºC
Flange standard: GB/T 17241.6GB /T 9113
Test standard: GB/T 13927 AP1598
DHH44X/H-10/16 butterfly buffer check valve main parts materials

Part name	Body	Butterfly plate	Valve stem	Buffer cylinder	Sealing ring
Materials	Gray cast iron, cast steel	Nickel steel	Stainless steel	Stainless steel	Nitrile butadiene rubber

DHH44X/H-10/16 butterfly buffer check valve main shape connection size unit: mm

DN (mm)	200	250	300	350	400	450	500	600	seven hundred	800	900	1000	1200	1400	1600	2000
L	230	250	270	290	310	330	350	390	430	470	510	550	630	710	790	950
H	550	630	690	780	860	910	980	1070	1220	1320	1430	1550	1800	1980	2150	2550
B	450	520	590	670	750	780	850	970	1080	1200	1300	1450	1670	1880	1950	2450