|
This swing type check valve with a built-in counterweight is designed taking
into account the inertial moment of the center of gravity of the valve
disk. The valve seat is uniquely sloped and the case configuration in front
of, and behind the valve seat is designed to facilitate immediate valve
closure. Inspection of the interior can be performed easily by removing
the valve cover.
|
Part name
|
Material code
(JIS 10K, Waterworks standard)
|
|
G
|
X, Y
|
|
1
|
Valve case
|
FC
|
SCS
|
|
2
|
Valve cover
|
FC
|
SCS
|
|
3
|
Seat holder
|
FC
|
SCS
|
|
4
|
Valve disk
|
SUS
|
SUS
|
|
7
|
Valve seat
|
SUS
|
SUS
|
|
8
|
Coil sleeve
|
(SUS)
|
(SUS)
|
|
10
|
Valve spindle
|
SUS
|
SUS
|
|
12
|
Valve arm
|
SCS
|
SCS
|
|
13
|
Valve arm pin
|
SUS
|
SUS
|
|
19
|
Pin holder
|
SUS
|
SUS
|
|
30-2
|
Seal ring
|
NBR
|
NBR
|
|
33
|
O-ring
|
NBR
|
NBR
|
|
40
|
By-pass valve
|
SUS
|
SUS
|
|
41
|
No-Feed Detector
|
(SUS)
|
(SUS)
|
|
Bore
d
|
JIS 10K standard
|
Weight
(kg)
|
|
L
|
R
|
J
|
H
|
E
|
F
|
G
|
K
|
M
|
N
|
n-h
|
|
50
|
195
|
153
|
112
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
11
|
|
65
|
210
|
172
|
122
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
16
|
|
80
|
215
|
192
|
122
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
18
|
|
100
|
240
|
204
|
130
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
25
|
|
125
|
270
|
233
|
180
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
35
|
|
150
|
310
|
261
|
190
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
60
|
|
200
|
380
|
316
|
225
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
100
|
|
250
|
430
|
381
|
278
|
255
|
165
|
75
|
150
|
100
|
270
|
320
|
4-19
|
171
|
|
300
|
530
|
413
|
308
|
295
|
200
|
175
|
180
|
130
|
310
|
360
|
4-19
|
207
|
|
350
|
600
|
470
|
332
|
335
|
225
|
200
|
200
|
150
|
350
|
400
|
4-19
|
255
|
|
400
|
700
|
585
|
358
|
375
|
260
|
235
|
230
|
180
|
400
|
450
|
4-19
|
448
|
|
450
|
750
|
600
|
388
|
410
|
275
|
250
|
250
|
200
|
450
|
500
|
4-19
|
575
|
|
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.
|
|
|
The coil sleeve and the No-Feed Detector are optional parts.
|
|
|
The valve arm and the valve disk form the counterweight.
|
|
|
The seat holder and the valve seat are integrated for valves with a bore
of 200mm or less.
|
|
|
Installation positions of the by-pass valve and the No-Feed Detector are
on the right side when viewed from the inlet side. For valves with a bore
of 50, 65 or 80mm, the installation position of the by-pass valve is on
the bottom.
|
|
|
Legs can be attached as an option on valves with a bore of 250mm or more.
|
|
|
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-SN type characteristics (Water head loss without coil sleeve - Flow
rate)
( Water head loss is approximately 20% higher with coil sleeve. )
Specifications stated here may be subject to change without notice due
to product improvement.
|
