Check valve

For over ten years Dipper Valve Company’s manufacturers and design engineers  involved in the localizing of manufacturing check valves for long distance transporting pipelines have used more than ten unique patent technologies to produce check valves applied to long distance gas and oil transporting pipelines. We have a successful experience in manufacturing axial flow check valve, piggable check valve, cryogenic check valve as well as slurry check valves. We offer a wide range of pipeline valves for natural gas, crude oil, LNG and slurry pipelines. Our products ensure the long distance transmission pipeline safe and reliable running, which in its turn drives forcefully the localizing  of manufacturing check valves for long distance transmission pipelines.

View as Grid List
Sort by
Display per page

Axial flow check valve

Nominal diameter: 1/2”~ 60” Pressure rating: class 150~class 2500 Product features: ①National Energy Bureau and CNPC “Oil And Gas Pipe Key Equipment Localizing Manufacturing Project” product; ②National patent sealing technology, zero leakage reliable sealing; ③Single-direction backflow prevention, pump or compressor protection; ④High flow capacity, low pressure drop, reduced pump or compressor energy consumption.
Call for pricing

Cryogenic check valve

Nominal diameter: 1/2” ~ 20” Pressure rating: class 150 ~ class 900 Actuator: N/A Product Features: ①National utility model patent; ②-196℃ cryogenic treatment, no phase transformation and deformation on valve body and key components; ③Cryogenic action test and cryogenic test under -196℃, reliable sealing performance; ④Sichuan best product.
Call for pricing

Piggable check valve

Nominal diameter: 8” ~ 48” Pressure rating: class 150 ~ class 1500 Actuator: manual Product features: ①Single-direction backflow prevention, pump or compressor protection; ②Piggable check valve; ③Quick closing + slow movement back to seat, preventing large quantity backflow and avoiding water hammer effect at the same time; ④Counter balance, manually operated.
Call for pricing