10
f1
f2
do
d1 b
A - IV 13 14.4 1.05 1.20 0.5 0.4 1.1
A EA I - III 18 19.9 1.30 1.45 0.5 0.4 1.1
B-C FA I - IV 18 19.9 1.30 1.45 0.5 0.4 1.1
D-E GA-HA I - IV 24.5 27.1 1.20 1.35 1.0 0.6 1.1
F - I - IV 28 30.9 1.30 1.45 1.0 0.6 1.1
G JA I - IV 33 36.4 1.30 1.45 1.0 0.8 1.6
H KA I - IV 38 41.9 1.55 1.70 1.0 0.8 1.6
J - I - IV 44 48.5 1.25 1.45 1.0 1.0 1.6
K LA I - IV 51 56.2 1.40 1.60 1.0 1.0 1.6
L MA-NA I - IV 59 65.0 1.50 1.70 1.0 1.3 2.1
M - I - IV 69 76.0 1.50 1.70 1.0 1.3 2.1
N PA I - III 80 88.1 1.45 1.75 1.5 1.6 2.1
P QA I - III 93 102.4 1.30 1.60 1.5 1.6 2.1
Q - I - III 107 117.7 1.35 1.65 1.5 1.9 2.6
R RA I - III 126 138.6 1.40 1.70 1.5 1.9 2.6
SPZ TA I
[3] [3] [3] [3] [3] [3] [3]
SEMPELL SERIES VSE/VSR FULL LIFT AND NORMAL SAFETY RELIEF VALVE
OPERATING INSTRUCTIONS
8 FUNCTIONALLY IMPORTANT OUTLINES AT THE VALVE SEAT
Functionally important outlines in mm
Orifice letter SKB do d1 b b f1 f2
[1]
f2
[2]
Sempell API Group H8 - 0,1 min. max. - 0,3 - 0,1 - 0,1
1. For gases, vapours and liquids
2. For steam
3. From orifice letter S on request
Valve seat for gases,
vapours,steam
Valve seat for liquid Lapping wheel with
grooveforliquid