The classification of fans is: 1, the classification of fans can be divided into centrifugal, axial, oblique (mixed) and cross-flow types according to the direction of gas flow. 2, according to the flow direction of the air into the impeller, the fan is... View More>>

Central air conditioning classification Introduction to understand the different central air conditioning，For central air conditioning, people pursue comfort and safety, in many modern home improvement environment, central air conditioning is a very commo... View More>>

HVAC is a broad term that stands for heating, ventilation and air conditioning. These systems are responsible for heating and cooling your business and include the following products:Furnace,Heat pump,Piping system,Thermostat,Comfortable control... View More>>

According to the provisions of GB/T 50106-2010 Standard for Building Water Supply and Drainage Drawing, the expression method of pipe diameter shall comply with the following provisions: 1, water gas transmission steel pipe (galvanized or non-galvanized)... View More>>

In terms of mechanical properties, PVC hard threading pipe can be divided into: light (low mechanical stress type casing), medium (medium mechanical stress type casing), heavy (high mechanical stress type casing) and super heavy (ultra-high mechanical str... View More>>

JPN Fluid Materials and equipment International Trading (Group) Co., LTD. 's product scale covers housing construction, municipal water supply and drainage, central heating, urban pipe corridor, sponge city, agricultural irrigation, ground source heat pum... View More>>

1. Vane pump: single-stage pump can be divided into single suction pump, double suction pump, self-priming pump, non-self-priming pump, etc. Vortex pumps can also be divided into single suction pumps, double suction pumps, self-priming pumps, non-self-pri... View More>>

here are roughly six kinds of common PE structural wall pipes: HDPE double-wall corrugated pipe, HDPE steel tape reinforced spiral corrugated pipe, HDPE hollow wall pipe (winding structure wall pipe type A), HDPE cla pipe (winding structure wall pipe type... View More>>

According to GB 50268-2008 specification, chemical building materials pipe refers to glass fiber pipe or glass fiber reinforced thermosetting plastic pipe (referred to as glass steel pipe), hard PVC pipe (UPVC), polyethylene pipe (PE), polypropylene pipe ... View More>>

Trenchless refers to the new construction technology of laying, replacing and repairing various underground pipelines under the condition of excavation of a very small part of the surface (generally referring to excavation of a small area at the entrance ... View More>>