(s3s-a) cast ironlow lift safety relief valve
model: s3s-a / s34-a / s36-a  withoutlever
model: s3s-lr /s34-lr / s36-lr  with lever
whenplacing order, please indicate workingpressure
type:
w/o lever(a)
with lever(lr)
workingfluid:
steam, air,liquid.
steam,air.
test onbody:
22kgf/cm2g (hydrostatic)
working
pressure:
fc :
1～10kgf/cm2g (150psi)
sus304/sus316:
1～20kgf/cm2g (300psi)
size:
fc :
25～50mm
sus304/sus316:
15～50mm
temperature:
0℃～230℃
connection:
jis / bspt(bs21),  npt (ansi b2.1)
material:  sl22/21
no./parts
w/olever
s3s-a
s3s-lr
s34-a
s34-lr
s36-a
s36-lr
withlever
1
cap
fc
scs13
scs14
2
hexagonnut
ss41
sus304
sus316
3
leverwasher
ss41
sus304
sus316
4
lever
bc
scs13
scs14
5
adjustingbolt
bc
sus304
sus316
6
stop nut
bc
sus304
sus316
7
springseat
fc
sus304
sus316
8
spring
sup6
sus304
sus304
9
stem
sus304
sus304
sus316
10
body
fc
scs13
scs14
11
valveseat
sus304
sus304
sus316
12
adjustingring
bc
-
-
13
adjustingscrew
ss41
-
-
14
valvebody
sus304
sus304
sus316
15
valveseat
fc
sus304
sus316
nominal
diameter
valveseat
diameterd
lift
l
effective areamm2
fc
sus
fittingscrew
lever type h(appr.)
2.22dl
πdl
0.785d2
l1
l2
l1
l2
inletd1
outletd2
15
15
0.4
13.3
18.8
176.6
40
45
45
50
pt1/2
pt1/2
127
20
20
0.5
22.2
31.4
314.0
45
45
45
50
pt3/4
pt3/4
130
25
25
0.6
38.8
54.9
490.6
55
55
55
55
pt 1
pt 1
136
32
32
0.8
56.8
90.3
803.8
60
65
60
60
pt1.1/4
pt1.1/4
197
40
40
1.0
88.8
125.6
1256.0
75
80
70
75
pt1.1/2
pt1.1/2
225
50
50
1.3
144.3
204.1
1962.5
80
85
80
80
pt 2
pt 2
250

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