Performance characteristics of self-operated flow control valve

ZLF (ZL-4M) -type self-acting flow control valve (self-balancing valve) Features: 1. According to the design or actual requirements of the flow, the system can automatically eliminate the pressure fluctuations, to maintain the same flow. 2. Flow display values ​​are calibrated on the test bench random flow (m3 / h). 3. Completely solve the pressure near the end of large, remote pressure small contradictions. 4. To overcome the uneven system of hot and cold, improve heating (cooling) quality. 5. Reduce the design workload, does not require control. 6. Reduce the system of circulating water, reduce system resistance. 7. Relieve multi-heat pipe network traffic switching when the redistribution of work. 8. Reduce the difficulty of network transfer, the complexity of network transfer work simplified to a simple traffic distribution.

Roof Rock Wool Insulation Board

Yu Ou Nuo Roof Rock Wool Insulation Board are suitable for fire prevention, heat preservation and heat insulation of external walls and roofs. Rock wool board is a kind of external wall thermal insulation material, with good thermal insulation effect, low thermal conductivity, high A1 fire grade, non flammability, strong high temperature shrinkage resistance, high quality and low price, which is convenient for construction and installation.Rock Wool Boardis an inorganic fiber board made of basalt as the main raw material through high temperature melting processing , is widely used in petrochemical, textile metallurgy, power transportation, construction agriculture and other fields.


The artificial inorganic fiber made of rock wool board by high temperature melting process has the characteristics of light weight, small thermal conductivity, heat absorption and incombustibility. The initial development is a common type of application in construction, which is mostly used in industrial buildings. Rock wool is a kind of external insulation material. When the market share of 90% of the organic thermal insulation materials is stagnant, rock wool, as an inorganic thermal insulation material for exterior wall, has ushered in an unprecedented market opportunity.


Roof Rock Wool Heat Insulation Board,Roof Insulation Compressed Rockwool Board,Roofing Waterproof Rock Wool Board,Roof Waterproof Stone Wool Board

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