HuihuaValve Industry Co.
15
www.hiwa.cn

BUTTERFLY VALVE
HuihuaValve Industry Co.

20

www.hiwa.cn
HuihuaValve Industry Co.
45
www.hiwa.cn

CHECK VALVE
C10

12345678

R
DD
1
D
2

L

°ÙTechnical Data
Size
Working Pressure
Face to Face
Flange Drilling
Inspection and Test

DN40-DN800
PN10/PN16
DIN3202-K3
ANSI B16.1 Class 125,EN1092-PN10/PN16 *
API598

*All available Flange drilling kindly refer to the attached Flange Drilling Dimensions.
°ÙProduct Features:
Wafer body style fits between FF or RF flanges.
Upper and lower PTFE thrust washers
Resilient Buna-N or EPDM seat.
Dual Plate Valves give maximum strength with minimum opening time.
Torsion springs assist valve closure, preventing flow reversal .
Thrust washers reduce friction and wear of valve plate hinges.

°ÙMaterial of Construction
Parts 1 2 3 4 5 6 7 8DescriptionBodyDiscShaftSpringWasherSeatGasketHex NutMaterial
Cast IronStainless SteelStainless SteelStainless SteelPTFEEPDMPTFECast SteelSpecificationA126B
A351 CF8M
A351 CF8M
AISI 316
AISI 316

A194 2H

*
*
*
*
*
*
*
*

*
Other material request kindly refer to Bill of MainMaterials of Hiwa.

*Other available Flange drilling kindly refer to the attached Flange Drilling Dimensions.
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800

78
107
127
142
162
192
218
273
328
378
438
489
539
594
695
810
917

78
107
127
142
162
192
218
273
328
378
444
489
555
617
734
804
911

57
65
80
94
117
145
171
224
265
310
360
410
450
505
624.5
720
825

43
43
46
64
64
70
76
89
114
114
127
140
152
152
178
229
241

/
40
60
70
88
115
134
182
220
260
298
350
385
438
538
662
762

25
27
35
42
50
64
77
102.5
125
146
170
195
215
238
292
345
294

Size
D2
DIN PN10
DIN PN16

D
D1
L

R

°Ù
Dimensions

1-1/2"
2"
2-1/2"
3"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
28"
32"

DNNPS
Hiwa Products specifications in this
catalogues are provided for reference
only. For precise measurements,
please contact HiwaTechnical Service,
Hiwa reserve the right to change or
modify product design, construction,
specifications, or materials without
prior notice and without incurring any
obligation to make such changes and
modifications on Hiwa products
previously or subsequently sold.