- Body and bonnet: the whole is made of austenitic stainless steel castings or forgings for high strength and low temperature resistance.

- Stem: Stem is surface treated to reduce wear and abrasion resistance at low temperatures.

- Sealing pair: using STL hard alloy, with wear resistance, corrosion resistance and low temperature resistance properties.

- Extended neck: Extended neck design ensures reliable sealing of the packing part of the stem.

- Drip board: can effectively prevent condensate water from flowing into the insulation layer.

- Unidirectional flow: pressure relief holes are provided on the ram to prevent abnormal pressure boost in the closed area of the middle chamber.

- Cleaning: The low temperature valve is degreased and cleaned.