The seal pressure gauge has an instrument connection thread of 1/4″ to 1/2″ BSP or NPT female available. Thr process connection thread is 1/4″ to 1/2″ BSP or NPT. The unit’s upper and lower housing material is standard SS316 and this can be changed on request. The membrane material is SS3161L, Hastelloy C276, Tantalum. The max pressure range is upto 60/kg/cm2 and minimum is 0~10 kg/cm2.