Check Valve Series

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Flange Tiny Drag Slow Close Butterfly Type Check Valve

manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 86 (21) 3652 8716
Mob: (86) 138 1635 6498

product drawing

Flange tiny drag slow close butterfly check valves
Flange tiny drag slow close butterfly check valves

Features

HH46/48/49X/H-10/16/25-type Flange tiny drag slow close butterfly check valve can be used in clean water, sewage, sea water and other media drains pipes, to prevent the media backflow, and also can restrict the destructive water hammer effectively, ensuring the safe use of pipelines. The valve has a novel structure, small size, light weight, small fluid resistance, reliable sealing, smooth open and close, wear-resistance, long service life, oil pressure and slow closed are not affected by media, good energy-saving effect and other features. HH46X HDH48X HH49X series of flange tiny drag slow close butterfly check valve has been widely promoted and used in the major industrial, urban construction and other industries, and the product response is good.

Dimensions & constructral diagram

Flange tiny drag slow close butterfly check valve constructral diagram
Flange tiny drag slow close butterfly check valve constructral diagram

The materials of main parts

part name body disc stem,hydro-cylinder,piston spring seat
material cast iron, cast steel Carbon steel SS SS NBR

Main technical parameter

type nominal pressure (MPa) intensity test pressure (MPa) sealing pressure(MPa) suitable temperature (℃) applicable medium slow close time
HH46X HDH48X HH49X 1.0 1.5 1.1 ≤80 sea water sewage water ≤60 S
1.6 2.4 1.76
2.5 3.75 2.75

Main external dimensions (flange connection dimensions:according to JB/T79-94 standard)

nominal pressure PN(MPa) nominal diameter DN(mm) dimensions(mm) nominal pressure PN(MPa) nominal diameter DN(mm) dimensions(mm)
L H H1 L H H1
1.0 1.6 2.5 40 140 200 88 1.0 1.6 2.5 350 290 480 297
50 150 215 98 400 310 550 324
65 170 225 108 450 330 585 351
80 180 235 118 500 350 640 379
100 190 280 130 600 390 720 434
125 200 290 148 700 430 780 491
150 210 310 172 800 470 840 549
200 230 350 210 900 510 990 600
250 250 415 240 1000 550 1050 655
300 270 450 264 1200 630 1210 770
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