* A27Y apply to the work temperature are less than 200 of water, air, steam, nitrogen and hydrogen mixed gas medium of the equipment or pipeline.
* A27Y-P/R8 is suitable for the work temperature are less than 200 corrosion of the equipment or pipeline, as the overpressure protection device.
* A28H apply to the work temperature are less than 200 of water, air, steam, nitrogen and hydrogen mixed gas medium of the equipment or pipeline.
* A28Y-P/R8 is suitable for the work temperature are less than 200 corrosion of the equipment or pipeline, as the overpressure protection device.
This valve is suitable for the work temperature are less than 350 of steam, air and other media of the equipment or pipeline, as the overpressure protection device. Connecting flange standard press JB/T-94 Series 1
A48H, A48Y wrench spring raise safety valve is suitable for the working temperature of 540 ℃ or less steam, air and other media equipment or piping. As the overpressure protection device.
