900 Series DIN standard Pressure Safety Valve
900 Series DIN standard Safety Valve are mainly applied to the industries such as petroleum & Natural gas, Chemistry, Electric, Metallurgy & Burning gas. As the super-pressure protecting equipment, It has following advantages: High precision of action, Good recycling function, Turning back to seat fast, Easy operating and maintaining, etc.
901 Type
Closed Cap
Closed top Cover
With Level
902 Type
Opening Cap
Opening Top Cover
With Level
911 Type
Closed Cap
Gas-Sealed Top Cover
Without Level
912 Type
Closed Cap
Opening Top Cover
With Level
|
Type
|
Nominal Pressure
|
Body Material
|
Nominal Diameter
|
Working Temp.
|
|
901/902/911/912
|
PN40/16
|
1.0619+N
|
DN20/32-DN150/250
|
-10C～450C
|
|
901/911
|
PN40/16
|
1.4408
|
DN20/32-DN100/150
|
-60C～400C
|
|
DN
|
20/32
|
25/40
|
32/50
|
40/65
|
50/80
|
65/100
|
80/125
|
100/150
|
120/200/
|
150/250
|
|
Throat Diameter do(mm)
|
18
|
22
|
29
|
36
|
45
|
58
|
72
|
80
|
100
|
125
|
|
Orifice Area Ao(mm)
|
254
|
398
|
661
|
1018
|
1590
|
2688
|
4072
|
6362
|
8825
|
12266
|
|
Weight (Kg)
|
8.5
|
10
|
14
|
20
|
28
|
40
|
53
|
80
|
125
|
165
|
|
901, 902, 911, 912 Type Safety Valve
|
|
DN×DN1
|
20/32
|
25/40
|
32/50
|
40/65
|
50/80
|
65/100
|
80/125
|
100/150
|
120/200/
|
150/250
|
|
D
|
PN16
|
105
|
115
|
140
|
150
|
165
|
185
|
200
|
220
|
250
|
285
|
|
PN40
|
235
|
220
|
300
|
|
K
|
PN16
|
75
|
85
|
100
|
110
|
125
|
145
|
160
|
180
|
210
|
240
|
|
PN40
|
190
|
220
|
250
|
|
B
|
20
|
20
|
20
|
21
|
22
|
24
|
26
|
28
|
31
|
34
|
|
D1
|
PN16
|
140
|
150
|
165
|
185
|
200
|
220
|
250
|
285
|
340
|
405
|
|
K1
|
100
|
110
|
125
|
145
|
160
|
180
|
210
|
240
|
295
|
355
|
|
B1
|
19
|
19
|
20
|
20
|
20
|
20
|
22
|
22
|
27
|
29
|
|
L
|
85
|
100
|
110
|
115
|
120
|
140
|
160
|
180
|
200
|
220
|
|
L1
|
95
|
105
|
115
|
140
|
150
|
170
|
195
|
220
|
250
|
285
|
|
≈H
|
298
|
311
|
315
|
355
|
405
|
555
|
580
|
690
|
845
|
890
|
|
Vent(with plug)
|
G3/8”
|
G1/2”
|
Full lift safety valve opening height is more than one fourth times of the flow diameter. it has an advantage of discharging greatly .
A48 Type Spring Loaded Full Lift Safety Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc., which the working medium is leass than 350C.
A48SB High temperature and high pressure safety valve
These safety valves are used as Extra Pressure Protection Device for the equipment and pipeline of the steam, ect. The working temperature with Carbon Material Type are less than 425C and with WC6 Material type are less than 500C and WC9 Material Type are less than 550C.
Full lift safety valve opening height is more than one fourth times of the flow diameter. it has an advantage of discharging greatly .
A48 Type Spring Loaded Full Lift Safety Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc., which the working medium is leass than 350C.
A48SB High temperature and high pressure safety valve
These safety valves are used as Extra Pressure Protection Device for the equipment and pipeline of the steam, ect. The working temperature with Carbon Material Type are less than 425C and with WC6 Material type are less than 500C and WC9 Material Type are less than 550C.
