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Micro Resistance Slow Closing Check Valve (304 Piston) HH49 (HH48X)-10Q

The micro resistance slow closing butterfly check valve series products are used in drainage pipelines for clean water, seawater, sewage and other media, which can prevent media back flow and effectively limit destructive water hammer, ensuring pipeline safety. Material of micro resistance slow closing butterfly check valve: carbon steel, low-temperature steel, duplex steel (F51/F53), titanium alloy, aluminum bronze, Inconel (INCONEL625), SS304, SS304L, SS316, SS316L; Chromium molybdenum steel, Monel (400/500), 20 # alloy, Hastelloy and other metal materials.

 

Product features:

  1. Small in size, lightweight, and with a structural length only about one-third of that of a swing check valve. 2. The slow closing system has good performance and is not affected by the medium in the pipeline. The valve disc closes quickly first and then slowly, which can prevent destructive water hammer. 3. Rubber soft seal, good sealing performance, wear-resistant, and long service life. 4. Rubber cushioning, smooth opening and closing, no vibration, no noise. 5. Compared to old-fashioned check valves, it has a smaller flow resistance and significant energy-saving effect.

Technical parameter£º


Model

HH46XHH48XHH49X

Nominal pressure

1.0~2.5MPa

Nominal diameter

DN40~DN1000

Applicable medium

Water, clean water, seawater, sewage

Parts material£º


Parts name

Valve body

Disc

Seal ring

Valve stem

Filler

Material

Gray cast
iron,carbon steel

Gray cast iron, carbon steel, ductile iron

Neoprene rubber, nitrile oil resistant rubber

Stainless steel

PTFE

Performance parameter£º


Model

Nominal pressure PN(MPa)

Strength test pressure (MPa)

Sealing pressure (MPa)

Applicable temperature (¡æ)

Applicable medium

Slow closing time

HH46X HH48X HH49X

1.0

1.5

1.1

¡Ü80

Clear water, sewage, seawater

¡Ü60 Second

1.6

2.4

1.76

2.5

3.75

2.75

 

Nominal pressure

Nominal diameter

Size£¨mm)

L

H

H1

1.0 1.6 2.5

40

140

200

88

50

150

215

98

65

170

225

108

80

180

235

118

100

190

280

130

125

200

290

148

150

210

310

172

200

230

350

210

250

250

415

240

300

270

450

264

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E-mail:rayhan@zhvalve.com
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