MODEL: SV-S67 / SVP-S67 WITHOUT LEVER MODEL: SV-S69 / SVP-S69 WITH LEVER The Disc can be replaced with PTFE for good effect of anti-leakage. （Model: SVP-S67, SVP-S69） Spring: 1/2”~1”: Steel or SUS304 1.1/4”~2”: Steel. When placing order, please indicate Working Pressure | Working Fluid : S67 | Non-Corrosive Gas, Non-Corrosive Liquid, Air, Steam, Water, Oil. | | Working Fluid : S69 | Non-Corrosive Gas, Air, Steam. | | Working Temp: | -45℃～185℃ | | Working Pressure: | SV-S67 / SV-S69 : 0.3 ~ 10 Kgf/cm2 11 ~ 20 Kgf/cm2 SVP-S67 / SVP-S69 （PTFE） 3 ~ 10 Kgf/cm2 | | Thread End: | BSPT （BS21）, NPT （ANSI B2.1） | | MATERIAL: | | No./ Parts | W/O Lever | SV-S67 | SVP-S67 | | With Lever | SV-S69 | SVP-S69 | | | Type : | METAL TO METAL | PTFE | | 1 | Valve Seat | SUS304 | SUS304 | | 2 | Valve Disc / Seal | FORGE BRASS | BRASS + PTFE | | 3 | Valve spindle （Stem） | BRASS | BRASS | | 4 | Valve Body | BRONZE | BRONZE | | 5 | Spring Shoe | BsBM | BsBM | | 6 | Adjusting Screw | BsBM | BsBM | | 7 | Stop Nut | BsBM | BsBM | | 8 | Cap | FORGE BRASS | FORGE BRASS | | 9 | Lever （Type: S69） | STEEL | STEEL | | 10 | Spring | SUS304 / STEEL | SUS304 / STEEL | | 11 | Screw Washer | BsBM | BsBM | | 12 | Hexagon Nut | BsBM | BsBM | | 13 | Stop Bolt | BsBM | BsBM | | 14 | Pin | BsBF | BsBF | |
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.
| Nominal Diameter | Valve Seat Diameter D | Lift l | Effective Area mm2 | L1 E | L2 F | Fitting Screw | Closed Type | Lever Type | | 2.22Dl | πD l | 0.785D2 | Inlet d1 | Outlet d2 | Amm | Weight | A1mm | Weight | | 12 | 12 | 0.52 | 13.32 | 18.84 | 113.0 | 29 | 50 | PT 1/2 | PF 1/2 | 138 | 0.52 | 161 | 0.59 | | 19 | 19 | 0.76 | 32.05 | 45.36 | 283.3 | 36 | 58 | PT 3/4 | PF 3/4 | 150 | 0.66 | 172 | 0.74 | | 25 | 25 | 1.00 | 55.50 | 78.53 | 490.6 | 40 | 70 | PT 1 | PF 1 | 180 | 1.09 | 202 | 1.19 | | 32 | 32 | 1.28 | 90.93 | 128.67 | 803.8 | 50 | 82 | PT 1.1/4 | PF 1.1/4 | 206 | 1.90 | 222 | 1.94 | | 38 | 38 | 1.52 | 128.22 | 181.45 | 1133.5 | 54 | 93 | PT 1.1/2 | PF 1.1/2 | 231 | 2.35 | 246 | 2.39 | | 50 | 50 | 2.00 | 222.00 | 314.15 | 1962.5 | 67 | 102 | PT 2 | PF 2 | 265 | 3.85 | 282 | 4.11 | |
