Summary of the products
Non-return valve whether one rely on flow, medium of itself and open, close the valve one not to used for and prevent the reverse automatic valve that flowed of medium from automatically. Performance norm
Follow the norm |
STANDARD |
Design and manufacture |
GB/T 12235 , GB/T12236 |
Length of structure |
GB/T 12221 , JB/T 96 |
Size of flange |
JB/T 78 , JB/T 79 |
The pressure testing |
GB/T 13927 |
Sign |
GB/T 12220 |
Stock |
GB/T 12252 |
The flange joins the non-return valve
It accords with China's national standard to design and make
The basic structure takes shape: Fasten the opening type, direct going up and down type
Nominal pressure: (MPa)
Nominal and open directly: (mm)
Basic type : H41F3 , H41F46 , H44F3 , H44F4
Major part material
Serial number |
Part name |
Gray casting iron |
Cast steel |
Stainless steel |
Z |
C |
P |
R |
1 |
Valve body , valve covering |
Ht250 |
WCB |
CF8 |
CF8M |
2 |
Line with the inlay / the valve seat |
PFA (but fusibility polytetrafluoroethylene (PTFE) ) of PCTFE (F3 ) of FEP (F46 ) |
3 |
Axle , valve one (board) |
1Cr13/35WCB1Cr18Ni1900Cr17Ni14Mo2 |
4 |
Bolt |
35 |
34 |
1Cr17Ni2 |
1Cr17Ni2 |
5 |
Nut |
45 |
45 |
0Cr18Ni9 |
0Cr18Ni9 |
Main connection and external dimension
Nominal
Open directly
DN |
Standard value |
Consulting value |
L |
D |
D |
D |
f |
b |
Z- Ф d |
D0 |
H |
Weight |
PN1.0(MPa) |
15 |
130 |
95 |
65 |
45 |
2 |
14 |
4- Ф 14 |
105 |
55 |
5 |
20 |
150 |
105 |
75 |
55 |
2 |
16 |
4- Ф 14 |
115 |
58 |
7 |
25 |
160 |
115 |
85 |
65 |
2 |
16 |
4- Ф 14 |
128 |
60 |
9 |
32 |
180 |
135 |
100 |
78 |
2 |
18 |
4- Ф 18 |
145 |
75 |
11 |
40 |
200 |
145 |
110 |
85 |
3 |
18 |
4- Ф 18 |
160 |
82 |
13.5 |
50 |
230 |
160 |
125 |
100 |
3 |
20 |
4- Ф 18 |
178 |
95 |
18 |
65 |
290 |
180 |
145 |
120 |
3 |
20 |
4- Ф 18 |
205 |
105 |
22 |
80 |
310 |
195 |
160 |
135 |
3 |
22 |
4- Ф 18 |
230 |
120 |
28 |
100 |
350 |
215 |
180 |
155 |
3 |
22 |
8- Ф 18 |
255 |
135 |
34 |
125 |
400 |
245 |
210 |
185 |
3 |
24 |
8- Ф 18 |
305 |
158 |
58 |
150 |
480 |
280 |
240 |
210 |
3 |
24 |
8- Ф 23 |
345 |
180 |
72 |
200 |
495 |
335 |
295 |
265 |
3 |
26 |
8- Ф 23 |
415 |
215 |
150 |
250 |
622 |
390 |
350 |
320 |
3 |
28 |
12- Ф 23 |
490 |
240 |
165 |
300 |
698 |
440 |
400 |
368 |
4 |
28 |
12- Ф 23 |
540 |
265 |
190 |
350 |
787 |
500 |
460 |
428 |
4 |
30 |
16- Ф 23 |
585 |
300 |
225 |
400 |
914 |
565 |
515 |
482 |
4 |
32 |
16- Ф 25 |
635 |
360 |
254 |
450 |
978 |
615 |
565 |
532 |
4 |
32 |
20- Ф 25 |
680 |
385 |
285 |
500 |
978 |
670 |
620 |
585 |
4 |
34 |
20- Ф 25 |
740 |
415 |
333 |
Main connection and external dimension
Nominal
Open directly
DN |
Standard value |
Consulting value |
L |
D |
D |
D |
f |
b |
Z- Ф d |
D0 |
H |
Weight |
PN1.6(MPa) |
15 |
130 |
95 |
65 |
45 |
2 |
14 |
4- Ф 14 |
110 |
55 |
6 |
20 |
150 |
105 |
75 |
55 |
2 |
16 |
4- Ф 14 |
120 |
58 |
7.8 |
25 |
160 |
115 |
85 |
65 |
2 |
16 |
4- Ф 14 |
135 |
60 |
10 |
32 |
180 |
135 |
100 |
78 |
2 |
18 |
4- Ф 18 |
150 |
75 |
12.5 |
40 |
200 |
145 |
110 |
85 |
3 |
18 |
4- Ф 18 |
165 |
82 |
14.5 |
50 |
230 |
160 |
125 |
100 |
3 |
20 |
4- Ф 18 |
185 |
95 |
19.5 |
65 |
290 |
180 |
145 |
120 |
3 |
20 |
4- Ф 18 |
210 |
105 |
25.5 |
80 |
310 |
195 |
160 |
135 |
3 |
22 |
8- Ф 18 |
235 |
120 |
30 |
100 |
350 |
215 |
180 |
155 |
3 |
24 |
8- Ф 18 |
260 |
135 |
36 |
125 |
400 |
245 |
210 |
185 |
3 |
26 |
8- Ф 18 |
310 |
158 |
62 |
150 |
480 |
280 |
240 |
210 |
3 |
28 |
8- Ф 23 |
350 |
180 |
78 |
200 |
495 |
335 |
295 |
265 |
3 |
30 |
12- Ф 23 |
420 |
215 |
156 |
250 |
622 |
405 |
355 |
320 |
3 |
32 |
12- Ф 25 |
505 |
240 |
172 |
300 |
698 |
460 |
410 |
375 |
4 |
34 |
12- Ф 25 |
560 |
265 |
240 |
350 |
787 |
520 |
470 |
435 |
4 |
38 |
16- Ф 25 |
605 |
300 |
208 |
400 |
914 |
580 |
525 |
485 |
4 |
40 |
16- Ф 30 |
650 |
350 |
265 |
|