Solar phase change thermal storage wall system adapted to buildings in hot summer and cold winter regions

We propose to study a kind of solar energy phase change thermal storage wall technology—double flow channel-intermediately insulated solar phase change thermal storage wall system. The system has four independent working modes: passive solar heating, thermal insulation, thermal insulation, and natural cooling. It can flexibly meet the needs of buildings in hot summer and cold winter regions during the whole season, and can be used effectively and passively throughout the year. Auxiliary power or other operational inputs, the system's seasonal adaptability and economy are good, in addition, the system is simple and beautiful. Therefore, the system has a good promotion and application value in hot summer and cold winter regions in China.

Precision Machined Pump Housing

Water pumps serve in a wide range of applications such as pumping water from wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers.

The precision machined pump housings we supplied are one of the key parts in the pump assembly.

Tolerance: Within +/-0.0005"

We manufacture & sell more than 15,000 sets /year to all over the world.

We also supply fine machined Pump Accessories according to your requirement.

QFAP has specialize in producing pump housings more than 5years.

Materials: Ductile iron, Grey iron, Aluminum

Surface treatment: Painting, Powder coating, only oiled

Main of our customers is from German, USA, and CAN.

With the long terms of experience in the pump industry, we could supply the pump housings or help to design the housings according to your requirements.

Precision Machined Pump Housing,Machining Centrifugal Pump Housing,CNC Machined Pump Housing,Machined Pump Parts Housing

SHAOXING QIFENG AUTO PARTS CO., LTD. , https://www.sxqfap.com