Globe Type, Cryogenic Service, Air-actuated print

NS_150

Emergency Shut-off Valve ( 300#)

Design pressure : 4.0Mpa
Design temperature : -196℃~75℃
Kind of fluid : LN₂,  LO₂,  LAr,  LCO₂,  LNG,  LC₂H₄
Hydrostatic test pressure : 6.0 Mpa
Pneumatic test pressure : 4.4 Mpa
Air Supply Pressure : 0.3 ~ 0.8 MPa

“Emergency Shut-off Valve” is exclusively designed to provide positive shut-off in case of emergency in cryogenic liquid systems.
This valve is used extensively in bulk storage tanks, portable liquid cylinders and pipelines for LO₂,  LN₂,  LAr  and LNG.”

Service characteristics

No Name Material No Name Material No Name Material
1 Body CF8 16 Spring SUP10 31 Spring Washer SUS 304
2 Bonnet CF8 17 Name Plate SUS 304 32 Hex’nut SUS 304
3 Valve Disc SUS 304 18 Cap C3604B 33 “O”ring VITON
4 Stem Lock Nut SUS 304 19 V-packing Adapter PTFE 34 Set Screw SUS 304
5 Stem SUS 304 20 V-packing PTFE 35 Hex’Nut(3종) SUS 304
6 Yoke AC4C 21 Stud Bolt SUS 304 36 Indicator Plate SUS 304
7 Stuffing Box SUS 304 22 Gasket V#7020 37 Indicator name Plate AL
8 Adapter SUS 304 23 Packing PTFE 38 “O” ring NBR
9 Gland SUS 304 24 Disc Seat PCTFE 39 Fuse Metal Pb
10 Piston Rod SUS 304 25 Hand Wheel ALDC8 40 Wrench Bolt SUS 304
11 Piston A2024 26 Hand Wheel Name Plate AL 41 Hex nut SUS 304
12 Cylinder Cap AC4C 27 Extended Pipe SUS 304TP 42 “O”ring NBR
13 Piston Stem Nut SUS 304 28 Hex’ nut SUS 304 43 Spring Washer SUS 304
14 Guide Bush C5212 29 Seat Washer SUS 304 44 Hex’nut SUS 304
15 Piston Stem SUS 304 30 Set Screw SUS 304 45 Exhaust Plug SUS 304

No maintenance is required other than replacement of seat assembly if any problems happen.

NS150 Ordering information

Model No. SIZE ØD d d1 L L1 I W H Cv
NS150-15A 1/2″(15A) 15 21.9 30 62 9 10 80 620 2.9
NS150-25A 1″(25A) 25 34.2 44 76 12 13.5 100 660 9.3
NS150-40A 11/2″(40A) 40 48.8 62 110 14 22 140 770 22
NS150-50A 2″(50A) 50 61 74 130 15 25 140 290 38

1. 80A(3″) and 100A(4”) can be quoted on requisition. 2. “-S” affix will be added if 3 way solenoid valve is required.
3. Manufactured by patented technology, Certified by KGS. 4. 4.0 MPa is standard but 5.0 MPa can also be available.
5. Air supply pressure required is more than 0.4 MPa.