Plate check valve
- name: Plate check valve
- Type: H74
- Presure: PN1.0~PN4.0MPa
- Specifications: DN50~DN600
- material: Carbon steel, stainless steel
The product description
Ultra-thin check valve is a kind of ultra-thin check valve, it has simple structure, beautiful appearance, light weight, easy installation, etc. Mainly suitable for water supply system, petroleum, chemical, metallurgical and other industrial department is most suitable to install space limitation places.
The main connection and overall dimensions
Nominal diameter
The main valve connection size
d
L
D
I type
II type
PN1.0
PN1.6
PN2.5
PN4.0
50
25
15
22
109
109
109
109
65
38
15
22
129
129
129
129
80
46
15
22
144
144
144
144
100
72
15
24
164
164
170
170
125
95
16
26
194
194
186
186
150
114
19
29
221
221
226
226
200
140
29
43
275
275
283
293
250
188
29
43
330
331
343
355
300
216
38
50
380
386
403
420
350
263
41
52
440
446
460
477
400
305
51
62
491
498
517
549
450
356
51
62
541
558
567
574
500
406
65
80
596
620
627
613
600
482
70
90
698
737
734
750
The major parts material
material code
valve body
The disc
The valve stem
C
WCB steel
Carbon steel + carbide
20Cr13
P
CF8(304) stainless steel
CF8(304) stainless steel
304
R
CF8M(316)stainless steel
CF8M(316)stainless steel
316
Other special material our company can also be customized according to customer's requirements.
core material
Applicable medium
Applicable temperature（℃）
Carbon steel（C type）
Water, steam, oil
≤425
Chromium nickel titanium steel（P type）
Nitrate class
≤200
Titanium nickel chrome molybdenum steel（R type）
Acetic acid class
≤200
Nominal pressure PN（MPa）
shell
Test pressure（MPa）
Seal (liquid)
Seal (gas)
1.0
1.5
1.1
0.6
1.6
2.4
1.8
0.6
2.5
3.8
2.8
0.6
4
6
4.4
0.6
- Implementation standards:
Design standard: CB/T3819
Structure length: GB/T12221
Experiment and test: JB/T9092, GB/T13927
Pressure - temperature: GB/T9131
Product label: GB/T12220
- Storage and maintenance
1 the valve must be kept in a dry, ventilated room.
2 long-term storage of the valve should be regularly checked to remove dirt. Special attention should be paid to the sealing surface of the cleaning, anti sealing surface damage. Long-term storage of the valve should be regularly checked, timely protection.
Installation and maintenance
1 must be carefully checked before installation, the valve plate is marked and consistent with the requirement and condition.
2 before installing the valve cavity and the sealing surface should be checked, if there is dirt, should use a clean cloth to wipe clean.
3 before installation should pay attention to the valve on the flow direction and the direction of the media is consistent with the media.
4 in use should pay attention to whether the valve has abnormal sound and vibration, in order to prevent water hammer effect in the pipeline, should pay attention to the pipeline pressure fluctuations in the media.
