MODEL: SV-B27 / SVP-B27 WITHOUT LEVERMODEL: SV-B29 / SVP-B29 WITH LEVERSV-B27/SV-B29 optional Pressure: 10.5~20 Kgf/cm2When placing order, please indicate Working PressureThe Disc can be replaced with PTFE for good effect of anti-leakage. (Model: SVP-B27, SVP-B29)
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Working Fluid :
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SV-B27/SV-B29/SVP-B29Non-Corrosive Gas, Air, Steam.SVP-B27 (without lever)Non-Corrosive Gas, Liquid, Air, Steam, Water, Oil.
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Working Temp:
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-45℃～185℃
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Working Pressure:
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SV-B27 / SV-B29 :0.3 ~ 10 Kgf/cm2 11 ~ 20 Kgf/cm2SVP-B27 / SVP-B29 (PTFE)3 ~ 10 Kgf/cm2
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Thread End:
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BSPT (BS21), NPT (ANSI B2.1)
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MATERIAL:
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No./ Parts
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W/O Lever
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SV-B27 (S3W-A)
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SVP-B27
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With Lever
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SV-B29 (S3W-LR)
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SVP-B29
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Type :
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METAL TO METAL
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PTFE
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1
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Valve Seat
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FORGE BRASS
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FORGE BRASS
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2
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Valve Disc
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FORGE BRASS
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FORGE BRASS
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3
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Valve spindle(Stem)
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FORGE BRASS
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FORGE BRASS
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3-1
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Valve Seal
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-
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PTFE
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4
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Valve Body
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BRONZE
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BRONZE
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5
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Spring Shoe
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BsBM
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BsBM
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6
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Adjusting Screw
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BsBM
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BsBM
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7
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Stop Nut
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BsBM
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BsBM
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8
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Cap
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FORGE BRASS
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FORGE BRASS
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9
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Lever (Type: B29)
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STEEL
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STEEL
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10
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Spring
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SWOSC-V
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SWOSC-V
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11
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Screw Washer
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BsBM
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BsBM
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12
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Hexagon Nut
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BsBM
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BsBM
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13
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Stop Bolt
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BsBM
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BsBM
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14
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Pin
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BsBF
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BsBF
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This type of safety valve is characterized by regulating of pressure in valve rising and blowing-out when actuated and is the smallest and lightest valve, and also can be used in non-corrosive gases (air, oxygen, nitrogen, etc.) steam and liquids, such as water and oil. The sizes shown in the chart are subject to change without notice.
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NominalDiameter
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Valve SeatDiameter D
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Lift l
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Effective Area mm2
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L1E
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L2F
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Fitting Screw
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Closed Type
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Lever Type
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2.22Dl
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πD l
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0.785D2
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Inlet d1
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Outlet d2
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Amm
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Weight
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A1mm
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Weight
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12
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12
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0.52
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13.32
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18.84
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113.0
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29
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50
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PT 1/2
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PF 1/2
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138
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0.52
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161
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0.59
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19
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19
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0.76
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32.05
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45.36
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283.3
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36
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58
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PT 3/4
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PF 3/4
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150
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0.66
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172
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0.74
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25
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25
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1.00
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55.50
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78.53
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490.6
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40
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70
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PT 1
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PF 1
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180
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1.09
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202
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1.19
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32
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32
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1.28
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90.93
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128.67
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803.8
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50
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82
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PT 1.1/4
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PF 1.1/4
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206
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1.90
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222
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1.94
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38
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38
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1.52
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128.22
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181.45
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1133.5
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54
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93
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PT 1.1/2
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PF 1.1/2
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231
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2.35
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246
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2.39
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50
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50
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2.00
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222.00
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314.15
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1962.5
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67
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102
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PT 2
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PF 2
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265
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3.85
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282
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4.11
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