200X pressure reducing valve
- name: 200X pressure reducing valve
- Type: 200X
- Presure: 1.0~2.5MPa
- Specifications: DN20~DN450
- material: Grey cast iron, nodular cast iron, carbon steel
Product description
200X pressure reducing valve is a kind of water supply system which is used in the water supply system of fire fighting water and domestic water. When there is a fire, the fire is badly in need of a large quantity of water and immediately cut off the water of life, to ensure adequate fire water; when the fire to stop the water pressure decreases, automatically open the valve, a normally open state, restore the living water. The valve makes the system need not set up a special fire separate water supply network, greatly saving the cost of construction and water consumption. The valve has high sensitivity, safety and reliability, easy to debug, and long service life.
主要连接及外形尺寸(PN10)
公称
通径
主要外形尺寸及连接尺寸(mm)
阀门尺寸mm
法兰连接尺寸mm
L
H1
H
D
D1
D2
b
f
Z-Φd
50
203
210
395
165
125
93
18
3
4-Φ18
65
216
215
405
185
145
113
18
3
4-Φ18
80
241
245
430
200
160
128
20
3
8-Φ18
100
292
305
510
220
180
148
20
3
8-Φ18
125
330
365
560
250
210
178
22
3
8-Φ18
150
356
415
585
285
240
204
22
3
8-Φ22
200
495
510
675
340
295
259
24
3
8-Φ22
250
622
560
730
395
350
314
26
3
12-Φ22
300
698
658
760
445
400
362
26
4
12-Φ22
350
787
696
840
505
460
422
26
4
16-Φ22
400
914
735
910
565
515
473
26
4
16-Φ26
450
978
735
910
615
565
523
28
4
20-Φ26
主要连接及外形尺寸(PN16)
公称
通径
主要外形尺寸及连接尺寸(mm)
阀门尺寸mm
法兰连接尺寸mm
L
H1
H
D
D1
D2
b
f
Z-Φd
50
203
210
395
165
125
93
18
3
4-Φ18
65
216
215
405
185
145
113
18
3
4-Φ18
80
241
245
430
200
160
128
20
3
8-Φ18
100
292
305
510
220
180
148
20
3
8-Φ18
125
330
365
560
250
210
178
22
3
8-Φ18
150
356
415
585
285
240
204
22
3
8-Φ22
200
495
510
675
340
295
259
24
3
12-Φ22
250
622
560
730
405
355
315
26
3
12-Φ26
300
698
658
760
460
410
370
28
3
12-Φ26
350
787
696
840
520
470
428
30
4
16-Φ26
400
914
735
910
580
525
479
32
4
16-Φ30
450
978
735
910
640
585
539
40
4
20-Φ30
- $Column2$
- $Column3$
- $Column4$
- $Column5$
