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 SV-S67安全閥、中國臺灣317青銅安全閥_螺紋安全閥 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) | _螺紋安全閥 |