Non-Water Hammer Check Valve


Non-Water Hammer Check Valve
SL series
(PAT.)

No valve closure delay means no water hammer and no noise

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SL-NU
Lift type

This valve is easy to install, highly reliable and safe, and therefore quite suitable to automatic pumping systems.
We also manufacture grease-proof treated products using stainless steel material for pure water lines, and have provided an even cleaner electrolysis-polished Non-Water Hammer Check Valve (SL-UC ) for ultra-pure water lines.


Non-Water Hammer Check Valve SL-NU

Unit: mm

Part name
Material code (JIS 10K standard)
F
G
X, Y
l

Valve case

FC
FC
SCS
3

Guide arm

SCS/FC
SCS/FC
SCS
3-1

Guide bush

SUS
SUS
SUS
4

Valve disk

FC
SCS
SCS
4-1

Valve rod

SUS
SUS
SUS
6

Valve guide

SCS
SCS
SCS
7

Valve seat

SCS
SCS
SCS
8

Coil sleeve

SUS
SUS
SUS
10

Nut

SUS
SUS
SUS
30-2

Seal ring

Chloroprene
NBR
NBR
40

By-pass valve

(C3603)
(SUS)
(SUS)

Unit: mm

Bore
d
JIS 10K standard
Weight
L
J
D
C
n
h
(kg)

40

120

105

140

105

4

19

5

50

140

110

155

120

4

19

7

65

160

120

175

140

4

19

10

80

180

125

185

150

8

19

12

100

210

130

210

175

8

19

17

125

260

185

250

210

8

23

30

150

300

210

280

240

8

23

38

200

380

235

330

290

12

23

75

250

450

285

400

355

12

25

120

300

540

325

445

400

16

25

180

Note:

Material code X denotes SCS13, material code Y denotes SCS14.
We also manufacture other materials such as FCD and special duplex type stainless steel.

Regarding material code F, the seal ring is replaced by a valve liner when material of the valve disk is FC.

The by-pass valve is an optional part.

The guide arm and the guide bush are integrated for valves with a bore of 125mm or less.

Material may change according to bore size.

Please contact us about installation in horizontal piping.

Applicable liquid temperature : 0-70 degree C
Please contact us if liquid temperature is more than 70 degree C.

Please contact us if flange standard is higher than JIS 30K.

SL-NU type characteristics (Water head loss - Flow rate)

Non-Water Hammer Check Valve / Characteristics (Water head loss - Flow rate) SL-NU

Specifications stated here may be subject to change without notice due to product improvement.

Features
Structure
Technical data
Selection & Dimensions
Inquiry form


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