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- 4How to solve the exhaust temperature is too high air-source heat pump problems [2009-10-30]
Air-source heat pump can absorb the low-temperature heat in the air came in through the compressor compressed into a high-temperature heat. The air can be a widespread, equitable and freely given to use of low-grade energy, the use of heat pump
- 4Electric valve underground drainage system in automatic control [2009-10-30]
Yanzhou Mining (Group) Corporation, North residential coal use sensors to monitor the water level underground water storage, water pump entrance and exit of vacuum pressure, electrical parameters such as operating current, and the use of programmable logic controller accor
- 4Wenzhou valve, etc. are listed ten key areas to improve construction industry [2009-10-29]
To further promote the transformation of Wenzhou massive industrial upgrading and quality upgrading, municipal Bureau of Quality Supervision has recently issued a "deepening implementation of the project to improve the quality brand-name training program," through policy s
- 4Knowledge quickly exhaust valve exhaust valve works [2009-10-29]
According to process conditions, choose a suitable control
valve structure and material
1, how to select the type of control valve
Before and after the pressure control valve smaller, require less lea
- 4globe valve and angle globe valve [2009-10-29]
As the
globe valve stem and valve seat sealing surface perpendicular to the axis. Valve stem to open or close the trip is relatively short, and has very reliable cutting action, makes this valve ideally suite
- 4globe valve and butterfly valve [2009-10-29]
In liquid-controlled hydraulic automatic transmission, the parameter adjustment part of the main throttle pressure
globe valve (the butterfly valve) and the rate-pressure globe valve (a
- 4Dbb Valves Knowledge | Dbb Valves for occasions [2009-10-29]
1,
dbb valve boiler (or chiller) water flow balance in the boiler room (or cold room), the general parallel installation of several units, as between the various units have different resistance, causing the flo
- 4Knowledge quickly dbb valve dbb valve works [2009-10-28]
DBB valve has three valve port P, A, T,, P Jieqi source, A then implementation of the components, T-pass air. When the P input compressed air to promote the spool shifted to the right, P and A pass, to the impl
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