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HH44Z / X, HH44-l6 emblem blocking slow check valve

Release Date: December 05, 2015

Introduction of HH44Z / X, HH44-l6 emblem slow closing check valve

HH44Z / X, HH44-l6 emblem slow-closing check valve is used for water supply and drainage pipelines installed at the outlet of the pump to prevent the medium from flowing back and eliminate destructive water hammer, and can effectively reduce the valve closing water hammer pressure to ensure the pipe network safe operation. It has the characteristics of light valve flap, large opening degree, power saving effect and small fluid resistance. The novel design of the water hammer elimination mechanism is stable, reliable, wear-resistant, long service life, stable operation, no vibration and noise.

HH44Z / X, HH44-l6 emblem main valve material

Part Name

Body and bonnet

Disc

Valve shaft

material

Gray cast iron, cast steel

Steel plate, rubber assembly

stainless steel

Check valve

Main technical parameters of HH44Z / X, HH44-l6 emblem blocking slow check valve

model

Nominal diameter
DN (mm)

Nominal pressure
PN (MPa)

Test pressure Ps (MPo)

Working pressure
(MPa)

Operating temperature

Applicable medium

case

seal

T 16
HH44X-10
H 25

20-800

1.0

1.5

1.1

1.0

0-80 ℃ (up to 200 ℃ according to user requirements)

Water, weakly corrosive media

T
HH44X
H

1.6

2.4

1.76

1.6

HH44Z / X

2.5

3.75

2.75

2.5

Main dimensions of HH44Z / X, HH44-l6 emblem slow-closing check valve (flange connection size: according to JB / T79-94)

Nominal pressure (MPa)

Nominal diameter DN (mm)

Size (mm)

L

H

B

1.0
1.6
2.5

40

200

300

220

50

230

300

270

65

290

320

290

80

310

354

300

100

350

350

320

125

400

380

340

150

480

500

410

200

500

580

450

250

600

670

550

300

700

730

580

350

800

820

630

400

900

920

700

450

1000

950

800

500

1100

1100

900

600

1300

1200

990

700

1400

1550

1120

800

1500

1700

1300