- Design: ANSI B 16.34 / API 6D – BS1873
- FTF: ANSI B 16.10
- Flange coupling: ANSI B 16.5
- Housing: A216 WCB
- Shaft: F6
| 150lbs |
2″ |
2½” |
3″ |
4″ |
5″ |
6″ |
8″ |
10″ |
12″ |
| 300lbs |
2″ |
2½” |
3″ |
4″ |
5″ |
6″ |
8″ |
10″ |
12″ |
| 600lbs |
2″ |
2½” |
3″ |
4″ |
5″ |
6″ |
8″ |
10″ |
12″ |
Check valve (150Lbs)
- Design: ANSI B 16.34 / API 6D – BS1873
- FTF: ANSI B 16.10
- Flange coupling: ANSI B 16.5
| 1 |
Housing |
A216 WCB |
| 2 |
Valve socket ring |
F6 |
| 3 |
Disk |
216 WCB-½” stellen |
| 4 |
Disk nut |
2H |
| 5 |
Shaft |
F6 |
| 6 |
Gasket |
Carbon |
| 7 |
Cover |
216 WCB |
| 8 |
Cover bolt |
B7 |
| 9 |
Cover nut |
2H |
| Nominal diameter, DN |
Basic sizes, mm |
| inch |
mm |
d |
D |
D1 |
D2 |
b |
n-Ød |
L |
H (open) |
Weight, kg |
| 2″ |
50 |
52.6 |
152.4 |
120.7 |
91.9 |
19.1 |
4-Ø19.1 |
203 |
135 |
15 |
| 2 ½” |
65 |
62.7 |
177.8 |
139.7 |
104.6 |
22.4 |
4-Ø19.1 |
216 |
150 |
26 |
| 3″ |
80 |
78 |
190.5 |
152.4 |
127 |
23.9 |
4-Ø19.1 |
241 |
165 |
27 |
| 4″ |
100 |
102.4 |
228.6 |
190.5 |
157.2 |
23.9 |
8-Ø19.1 |
292 |
241 |
42 |
| 5″ |
125 |
128.3 |
254 |
215.9 |
185.7 |
23.9 |
8-Ø22.4 |
330 |
260 |
69 |
| 6″ |
150 |
154.2 |
279.4 |
241.3 |
215.9 |
25.4 |
8-Ø22.4 |
356 |
284 |
75 |
| 8″ |
200 |
202.7 |
342.9 |
298.5 |
269.7 |
28.4 |
8-Ø22.4 |
495 |
340 |
124 |
| 10″ |
250 |
254.5 |
406.4 |
362 |
323.9 |
30.2 |
12-Ø25.4 |
622 |
425 |
200 |
| 12″ |
300 |
304.8 |
482.6 |
431.8 |
381 |
31.8 |
12-Ø25.4 |
699 |
460 |
310 |
Check valve (300Lbs)
- Design: ANSI B 16.34 / API 6D – BS1873
- FTF: ANSI B 16.10
- Flange coupling: ANSI B 16.5
| 1 |
Housing |
A216 WCB |
| 2 |
Valve socket ring |
F6 |
| 3 |
Disk |
216 WCB-½” stellen |
| 4 |
Disk nut |
2H |
| 5 |
Shaft |
F6 |
| 6 |
Gasket |
Carbon |
| 7 |
Cover |
216 WCB |
| 8 |
Cover bolt |
B7 |
| 9 |
Cover nut |
2H |
| Nominal diameter, DN |
Basic sizes, mm |
| inch |
mm |
d |
D |
D1 |
D2 |
b |
n-Ød |
L |
H (open) |
Weight, kg |
| 2″ |
50 |
52.6 |
165.1 |
127 |
91.9 |
22.4 |
8-Ø19.1 |
267 |
145 |
21 |
| 2 ½” |
65 |
62.7 |
190.5 |
149.4 |
104.6 |
25.4 |
8-Ø22.4 |
292 |
170 |
30 |
| 3″ |
80 |
78 |
209.6 |
168.1 |
127 |
28.4 |
8-Ø22.4 |
318 |
185 |
39 |
| 4″ |
100 |
102.4 |
254 |
200.2 |
157.2 |
31.8 |
8-Ø22.4 |
356 |
250 |
70 |
| 5″ |
125 |
128.3 |
279.4 |
235 |
185.7 |
35.1 |
8-Ø22.4 |
400 |
275 |
115 |
| 6″ |
150 |
154.2 |
317.5 |
269.7 |
215.9 |
36.6 |
12-Ø22.4 |
445 |
310 |
125 |
| 8″ |
200 |
202.7 |
381 |
330.2 |
269.7 |
41.1 |
12-Ø25.4 |
533 |
365 |
190 |
| 10″ |
250 |
254.5 |
444.5 |
387.4 |
323.9 |
47.8 |
16-Ø28.4 |
622 |
430 |
290 |
| 12″ |
300 |
304.8 |
520.7 |
450.9 |
381 |
50.8 |
16-Ø31.8 |
711 |
480 |
450 |
Check valve (600Lbs)
- Design: ANSI B 16.34 / API 6D – BS1873
- FTF: ANSI B 16.10
- Flange coupling: ANSI B 16.5
| 1 |
Housing |
A216 WCB |
| 2 |
Valve socket ring |
F6 |
| 3 |
Disk |
216 WCB-½” stellen |
| 4 |
Disk nut |
2H |
| 5 |
Shaft |
F6 |
| 6 |
Gasket |
Carbon |
| 7 |
Cover |
216 WCB |
| 8 |
Cover bolt |
B7 |
| 9 |
Cover nut |
2H |
| Nominal diameter, DN |
Basic sizes, mm |
| inch |
mm |
d |
D |
D1 |
D2 |
b |
n-Ød |
L |
H (open) |
Weight, kg |
| 2″ |
50 |
51 |
165.1 |
127 |
91.9 |
25.4 |
8-Ø19.1 |
292 |
200 |
28 |
| 2 ½” |
65 |
64 |
190.5 |
149.4 |
104.6 |
28.4 |
8-Ø22.4 |
330 |
225 |
38 |
| 3″ |
80 |
76 |
209.6 |
168.1 |
127 |
31.8 |
8-Ø22.4 |
356 |
240 |
52 |
| 4″ |
100 |
102 |
273.1 |
215.9 |
157 |
31.8 |
8-Ø22.4 |
432 |
275 |
87 |
| 6″ |
150 |
152 |
355.6 |
292.1 |
215.9 |
47.8 |
8-Ø22.4 |
559 |
365 |
224 |
| 8″ |
200 |
200 |
419.1 |
349.3 |
269.7 |
55.6 |
12-Ø22.4 |
660 |
430 |
354 |
| 10″ |
250 |
248 |
508 |
431.8 |
323.9 |
63.5 |
12-Ø25.4 |
787 |
475 |
626 |
| 12″ |
300 |
298 |
558.8 |
489 |
381 |
66.5 |
16-Ø28.4 |
838 |
555 |
790 |
Wafer Type Duo Check Valve
Wafer Type Duo Check Valve ZRD 2/API
- Nominal size
- DN2 – DN20
- Nominal pressure
- ANSI class 600-900
- Application
- Fluids
- Steam
- Gas
- Fluidgroup 1 acc. to PED 97/23/EC
- Materials:
| Body |
Plates |
Springs |
| 1.4301/A182 F304 (DN2″-10″) |
1.4308/A351 CF8 (DN2″-6″) |
1.45711) |
| 1.4308/A351 CF8 (>DN10″) |
1.4301/A182 F304 (>DN”) |
1.45711) |
1) when exceeding 300°C operating temperature please use an Inconel spring
Dimensions (mm) and Weights (kg)
High pressure check valve
Check Valves are designed for a pressure range from 20 MPa to 70 MPa especially for conditions in 
chemical and petrochemical industry. Only forged material is used for high pressure equipment.
Design:
- with hollow cone, check cone, plate
- with straight through for vertical and horizontal installation
- angle or straight through type (vertical installation of the check cone)
- with steam jacket
- different connections (threaded flanges, welding ends, welding neck flanges, connections according customer specification…)
 |
Min |
Max |
| DN |
25 |
150 |
| PN |
63 |
400 |
 |
Min |
Max |
| DN |
10 |
300 |
| PN |
25 |
40 |
 |
Min |
Max |
| DN |
10 |
300 |
| PN |
25 |
40 |
 |
Min |
Max |
| DN |
10 |
200 |
| PN |
63 |
160 |
 |
Min |
Max |
| DN |
10 |
200 |
| PN |
63 |
160 |
 |
Min |
Max |
| DN |
65 |
200 |
| PN |
250 |
320 |
 |
Min |
Max |
| DN |
65 |
200 |
| PN |
250 |
320 |
 |
Min |
Max |
| DN |
10 |
200 |
| PN |
10 |
40 |
 |
Min |
Max |
| DN |
10 |
200 |
| PN |
10 |
40 |
 |
Min |
Max |
| DN |
10 |
100 |
| PN |
10 |
160 |
 |
Min |
Max |
| DN |
50 |
200 |
| PN |
10 |
16 |
