The 7110/8110 Pressure/Vacuum Relief Valve are designed for use on atmospheric and low pressure storage tanks, vents to atmosphere. The primary function is to protects tanks from damager deformation, and minimizes emissions to the environment as well as loss of product due to evaporation.
Model
7110、8110 Weight loaded
7112、8112 Vacuum Spring loaded
7113、8113 Pressure/Vacuum Spring loaded
7115、8115 Pressure Spring loaded
Design Features
Sizes available 2″~12″(DN50~DN300);
The 7110 series outlet ports is same to inlet;
The 8110 series outlet ports is one pipe size larger than inlet flange to optimize flow capacity；
Vent to atmosphere；
The weather hood and cover are easily removed for inspection and maintenance；
Protective screens are provided at pressure and vacuum ports to prevent entrance of foreign matter；
The Flame Arrester、Inlet Pipe、Steam Jacket、Blowing Hole、Lining or Humidity Absorber are options to client；
Designed and tested according to API 2000；
The flanges are accordance with ANSI B16.5,or EN1092、JIS;
Available Materials：Aluminum、Carbon Steel、Stainless Steel、Special Materials on Application；
Setting Pressure/Vacuum
Setting KPa
|
7110、8110
|
7112、8112
|
7113、8113
|
7115、8115
|
Set pressure
|
0.2~6.9
|
0.2~6.9
|
6.9~103.4
|
6.9~103.4
|
Set Vacuum
|
-0.2~-4.3
|
-4.3~-82
|
-0.2~-4.3
|
-4.3~-82
|
7110、7112、7113、7115 Dimensions, mm
7110、7112、7113、7115 Dimensions, mm
公称通径Nominal Size
|
2″ [50]
|
3″
[80]
|
4″ [100]
|
6″ [150]
|
8″ [200]
|
10″[250]
|
12″[300]
|
L
|
322
|
368
|
416
|
525
|
675
|
824
|
967
|
W Width
|
200
|
200
|
248
|
290
|
390
|
488
|
584
|
H1
|
335
|
352
|
393
|
490
|
622
|
746
|
876
|
H2
|
403
|
422
|
505
|
636
|
870
|
1030
|
1230
|
8110、8112、8113、8115 Dimensions, mm
公称通径Nominal Size
|
2″ [50]
|
3″
[80]
|
4″ [100]
|
6″ [150]
|
8″ [200]
|
10″[250]
|
12″[300]
|
L
|
322
|
405
|
473
|
620
|
770
|
912
|
1075
|
W Width
|
200
|
248
|
290
|
390
|
488
|
584
|
680
|
H1
|
335
|
378
|
466
|
613
|
701
|
830
|
956
|
H2
|
403
|
490
|
615
|
860
|
985
|
1182
|
1225
|