Pass valve is installed on pipe Technology Parameter Target gas :methane,coal gas ,LPGConnection mode:pass valveSize:3/4Material:brass alloys , aluminum die castingInterface material :steelsTemperature:-10oC-50oCStress :10kpaWorking valtage:DC9V-18V Impulse :<0.5secendsWorking current :2A ,impulse :<0.5secendsExplosionproof type: ExmII T6