Pneumatic low temperature ball valve refers to a ball valve with a
medium temperature of -40 ℃ ～ -196 ℃, which is used for the
management system of low temperature and cryogenic medium.The valve
undergoes a special low temperature treatment to ensure the low
temperature performance of the material. When running in low
temperature conditions, it will not cause leakage due to
deformation caused by temperature changes. The imported pneumatic
low temperature ball valve bonnet adopts a long neck structure. Its
purpose is to protect the function of the stuffing box, so that the
stuffing box is located far from the low temperature, and the
sealing effect of the packing is guaranteed. The neck length of the
long neck can be selected according to the use temperature and the
thickness of the cold insulation material.
Nominal diameter:DN50 ～ DN300mm
Nominal pressure:1.0, 1.6, 2.5MPa
Connection Type:Flanged
structure type:Extension
Drive form:Compressed air 4-7bar
Range of action:0 ～ 90 °
Spool structure:O-type spool
Body material:stainless steel
Sealing material:PEFE, PPL, 304, 316
Use medium:Liquefied natural gas, liquid nitrogen and other low
temperature fluids
control method:Switch type (fast two-position cut-off), adjustable
type (valve valve device 4-20mA signal)
Customer Notice:
1. If customers have special requirements for products, they must
provide the following instructions in the order contract:
a. Structure length
b. Connection Type;
c. Nominal diameter
d. Product use medium and temperature and pressure range;
e. Testing, inspection standards and other requirements.
2. The factory can configure various driving devices according to
customer specific requirements.
3. If the determined valve type and model are provided by the
customer, the customer should correctly explain the meaning and
requirements of its model, and sign the contract on the condition
that the supply and demand sides understand and agree.
4. For futures and ordering customers, please call the letter to
tell the valve model, specifications, quantity, delivery time and
place in detail. And advance payment of 30% of the total contract
amount, the supplier is ready for production.
