NRV refrigeration check valves
NRV and NRVH can be used in liquid suction and hot gas lines in refrigeration and air conditioning plants. The valves ensure the correct flow direction and prevent back-condensation from a warm part of the system to the cold evaporator. The hermetic tight design of solder versions meet the environmental demands for today and future. A built-in damping piston makes the valves suitable for installation in lines where pulsation can occur, e. g. in the discharge line from the compressor.
NRV and NRVH can be used in liquid suction and hot gas lines in refrigeration and air conditioning plants.
The valves ensure the correct flow direction and prevent back-condensation from a warm part of the system to the cold evaporator.
The hermetic tight design of solder versions meet the environmental demands for today and future.
A built-in damping piston makes the valves suitable for installation in lines where pulsation can occur, e. g. in the discharge line from the compressor.
Features and Benifits
Ensure correct flow direction
Available in both straightway and angleway versions
Prevents back-condensation from warm to cold system part
Solder versions are compliant with ATEX hazard zone 2
NRVH type check valve is with stronger spring and it‘s recommended to use for compressors in parallel (i.e. power packs) where higher level of pulsation and vibration are expected
Oversize connections provide flexibility in use
Cold Room Hinged Door
Cold Room Hinged Door designed and manufactured by GYW is widely used for cold rooms or freezer rooms from temperatures of -36° C to normal operating temperatures. Cold room hinged door panels are seamlessly joined together by means of tongue and groove, they are locked together by cam-lock on each side of the panel to ensure air tight joints. Cam-lock design fastener to install with the cold room tightly and strongly. The cold room door panel with thickness of 100mm or 150mm is commonly applied. All our cold room doors are made with the CFC-free insulated PU panel covered with stainless steel or galvanized steel that meet EC/USDA international hygiene standards.
Cold room (also called cool room, chiller room)
Cold room (also called cool room, chiller room) is a walk-in storage facility in controlled condition to keep a consistent temperature, it is widely used to preserve the quality of stored products like fruit, vegetables, beverages, flowers, beef and chicken meat, seafood, medicine, cheese, eggs and other fresh foods. The applications of cold rooms include foods and beverages packaging, short and long term products cold storage as well as blast freezing.
Freezer room (also called blast freezer, shock freezer)
Freezer room (also called blast freezer, shock freezer) is a kind of cold room with lower storage temperature from -40°C to -10°C, it is equipped with more thicker doors, PU panels and more powerful condensing units than cool room. Freezer room addresses cold storage concerns of storing material reliably at consistently low temperature and fast cooling speed, so it can keep such stored products like sea food, meat or ice scream in fresh quality.