Single-lever safety valve is widely used for the power-station boiler and pressure container. The working temperature is 450℃ or less. Single-lever is applied to avoid the pressure inside pipelines beyond the permitted value. Single-lever Single-lever safety valve is applicable for steam or air.
Materials
NO. |
Part Name |
Materials |
1 |
Body |
Carbon steel |
2 |
Guide sleeve |
Stainless steel |
3 |
Disc |
2Cr13 |
4 |
Stem |
2Cr13 |
5 |
Lever |
Carbon steel |
6 |
Hammer |
Iron steel |
Dimensions
Nominal Diameter DN(mm) |
Dimensions(mm) |
|||||||||||||||||||
do-z |
D |
D1 |
D2 |
D6 |
f |
f1 |
b |
Z-?d |
L |
H |
Flanged End |
Socket Welded |
||||||||
DN’ |
D2’ |
D1’ |
D’ |
n-M |
d1 |
K2 |
K3 |
D3 |
||||||||||||
50 |
40×1 |
165 |
125 |
100 |
/ |
3 |
/ |
16 |
4-18 |
840 |
412 |
125 |
175 |
200 |
235 |
8-M16 |
120 |
145 |
162 |
190 |
60 |
40×1 |
165 |
125 |
100 |
/ |
3 |
/ |
20 |
4-18 |
840 |
412 |
125 |
175 |
200 |
235 |
8-M16 |
120 |
145 |
162 |
190 |
70 |
40×1 |
165 |
125 |
100 |
88 |
3 |
4 |
20 |
4-18 |
840 |
412 |
125 |
175 |
200 |
235 |
8-M16 |
120 |
145 |
162 |
190 |
80 |
40×1 |
175 |
135 |
105 |
88 |
3 |
4 |
26 |
4-23 |
840 |
420 |
125 |
175 |
200 |
235 |
8-M16 |
120 |
145 |
162 |
190 |
90 |
40×1 |
195 |
145 |
112 |
88 |
3 |
4 |
28 |
4-25 |
840 |
420 |
125 |
175 |
200 |
235 |
8-M16 |
120 |
145 |
162 |
190 |
Source: https://www.chinavalvesflange.com/single-lever-safety-valve-carbon-steel-flanged-end.html