Ductile Iron Body-Ductile Iron Disc Wafer Check Valve
Product Introduction
The Ductile Iron Body-Ductile Iron Disc Wafer Check Valve is designed for low-to-medium pressure fluid systems. Featuring GGG50 ductile iron construction and dual-disc design, it utilizes flow energy for rapid closure against backflow. Ideal for municipal water supply, fire protection, and industrial circulation, it operates at -20℃ to 80℃ with PN16 pressure, fitting DN50-DN600 pipelines and achieving ANSI Class IV leakage.
Product Advantages
- Backflow Prevention: Dual-disc closure protects pumps and pipelines from shock damage.
- Energy Savings: Ultra-low resistance design reduces annual pumping costs by 15%.
- Easy Integration: ISO 5752-compliant for horizontal/vertical ANSI/GB flanges.
- Versatile Performance: Handles clean water to slightly abrasive cooling systems.
Product Features
Full Ductile Iron Build
GGG50 body/disc with ≥1.6MPa tensile strength offers 30% cost savings over cast steel.
01
Low-Resistance Flow
85° opening angle reduces pressure loss <0.03 bar, increasing Kv value by 25% vs swing check valves.
02
Space-Saving Wafer
Boltless design halves installation space versus flange check valves.
03
Rapid Closure
0.3s full closure upon backflow, reducing water hammer peaks by 35%.
04
Cost-Effective Maintenance
Standardized wear parts enable quick replacement, cutting repair costs by 60%.
05
|
Nominal diameter DN |
Size (mm) |
Weight (kg) |
||||||
|
D |
D1 |
D2 |
L |
R |
t |
|||
|
mm |
inch |
DH77X-10/16 |
||||||
|
50 |
2" |
107 |
65 |
43.3 |
43 |
28.8 |
19 |
1.5 |
|
65 |
2.5" |
127 |
80 |
60.2 |
46 |
36.1 |
20 |
2.4 |
|
80 |
3" |
142 |
94 |
66.4 |
64 |
43.4 |
27 |
3.6 |
|
100 |
4" |
162 |
117 |
90.8 |
64 |
52.8 |
28 |
5.7 |
|
125 |
5" |
192 |
145 |
116.9 |
70 |
65.7 |
30 |
7.3 |
|
150 |
6" |
218 |
170 |
144.6 |
76 |
78.6 |
31 |
9.0 |
|
200 |
8" |
273 |
224 |
198.2 |
89 |
104.4 |
33 |
17 |
|
250 |
10" |
328 |
265 |
233.7 |
114 |
127 |
35 |
26 |
|
300 |
12" |
378 |
310 |
283.9 |
114 |
148.3 |
43 |
42 |
|
350 |
14" |
438 |
360 |
332.9 |
127 |
172.4 |
45 |
55 |
|
400 |
16" |
489 |
410 |
381.0 |
140 |
197.4 |
52 |
75 |
|
450 |
18" |
539/555 |
450 |
419.9 |
152 |
217.8 |
58 |
101/107 |
|
500 |
20" |
594 |
505 |
467.8 |
152 |
241 |
58 |
111 |
|
600 |
24" |
690 |
624 |
572.6 |
178 |
295.4 |
73 |
172 |
|
700 |
28" |
800 |
720 |
680 |
229 |
354 |
98 |
219 |
Technical Parameters
|
Size |
DN32-DN600 |
DN650-DN2000 |
|
Working pressure |
16Bar |
10Bar |
|
Shell |
24Bar |
15Bar |
|
Seal |
18Bar |
11Bar |
|
Operating Temperature |
-45°C~+150°C |
|
|
Operating Environment |
Ballast and bilge system Chemical processing Desalination plants |
|
|
Driving Method |
Hand Lever Worm Gear Electric Pneumatic |
|
Executive Standards
|
Design Standard |
EN 593, MSS SP67, API 609, BS 5155 |
|
Inspection & Test |
API 598, ISO 5208, EN 12266 |
|
End Standard |
ANSI B16.1 CL. 125LB & B16.5 CL. 150LB |
|
AS 2129 Table D & E |
|
|
BS 10 Table D & E |
|
|
DIN 2501 (PN6, PN10, PN16) |
|
|
EN 1092 (PN6, PN10, PN16) |
|
|
ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16) |
|
|
KS B / JIS B 1511 / 2210 (5K & 10K) |
|
|
MSS SP44 CL. 150LB |
|
|
AWWA C207 |
|
|
SABS 1123 Table 1000/3 & Table 1600/3 |
|
|
Face to Face |
ISO 5752, EN 558, MSS SP67, API 609, DIN 3202 |
|
Top Flange |
ISO 5211 |
Hot Tags: ductile iron body and disc wafer type check valve, China ductile iron body and disc wafer type check valve manufacturers, suppliers, factory, 304SS Disc Wafer Check Valve, Bronze Disc Wafer Check Valve, Carbon Steel Fully Lined EPDM Wafer Check Valve, Ductile Iron Body and Disc Wafer Type Check Valve, Stainless Steel Hard Seal Wafer Check Valve, wafer check valve
