SVF-20SLR安全阀

(SVF-20SLR) FULL BORE SAFETY RELIEF VALVE - FLG/SCW



MODEL: SVF-20SA WITHOUT LEVER

MODEL: SVF-20SLR WITH LEVER

Max. Pressure: 20 Kgf/cm2g / 300 PSI.

When placing order, please indicate Working Pressure TYPE: W/O Lever (A) With Lever (LR)

Working Fluid: Steam, Air, Liquid. Steam, Air.

l Non-Corrosive Gas, Non-Corrosive Liquid.

Test on Body: FC : 22 Kgf/cm2g (Hydrostatic)

SUS304, SUS316 : 44 Kgf/cm2g (Hydrostatic)

Working Pressure: FC : 0.35～10 Kgf/cm2g (150PSI)

SUS304, SUS316 : 1～20 Kgf/cm2g (300PSI)

Flange: FC : JIS 10 Kgf/cm2g

SUS304, SUS316 : JIS 20 Kgf/cm2g

Temperature: FC: 0℃ ～ 230℃ SUS304/SUS316: 0℃ ～ 280℃

Connection: FLANGED END TO JIS10K, 20K, ANSI 150 LBS.

SCREWED END TO BSPT (BS21) OR NPT (ANSI B2.1)

MATERIAL: SF2/SF1

No./ Parts W/O Lever SVF-20SA

With Lever SVF-20SLR

1 Cap FC SCS 13 SCS 14

2 Hexagon Nut SS 41 SUS 304 SUS 316

3 Lever BC SCS 13 SCS 13

4 Adjusting Bolt BC SUS 304 SUS 316

5 Stop Nut BC SUS 304 SUS 316

6 Spring Seat FC SUS 304 SUS 316

7 Spring SUP6 SUS / SUP6 SUS / SUP6

8 Stem SUS304 SUS 304 SUS 316

9 Body Cover FC SCS 13 SCS 14

10 Body FC SCS 13 SCS 14

11 Valve Body SUS 304 SUS 304 SUS 316

12 Adjusting Ring BC SUS 304 SUS 316

13 Adjusting Screw SS 41 SUS 304 SUS 316

14 Adjusting Ring BC SUS 304 SUS 316

15 Valve Seat SUS 304 SUS 304 SUS 316





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Size (mm) di x dt x do Inlet Outlet Inlet Orifice Valve Seat Orifice Effective Area Lift l

A B di dt (mm2) l L1 L2 H

15 x 11 x 25 1/2” 1” 13.0 11 94.9 2.7 50 85 195

20 x 15 x 25 3/4” 1” 18.0 15 176.6 3.8 50 85 195

25 x 19 x 32 1” 1.1/4” 22.5 19 283.3 4.8 65 85 225

32 x 26 x 40 1.1/4” 1.1/2” 30.0 26 530.6 6.5 70 90 235

40 x 29 x 50 1.1/2” 2” 34.0 29 660.1 7.3 75 100 285

50 x 38 x 65 2” 2.1/2” 44.0 38 1133.5 9.5 85 115 325



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