Rotary valve features and types

Rotary valve features and types: 1, the characteristics of rotary valve: Valves are usually divided into two categories: straight stroke and rotary. The linear valve allows or cuts the flow through a linear moving part such as a gate. Straight-stroke valves include globe valves, gate val

Chlorine-free refrigerant replacement for chiller

On September 29th, from Jilin Petrochemical and Calcium Carbide Plant, China's first centrifugal chiller-free replacement technology for fluorine-free refrigerants was introduced and successfully applied at Jilin Petrochemical and Calcium Carbide Plant. A number of operational indicators have r

Domestic port *** fuel prices (9.10)

RMB/TON Port fuel oil 180CST Fuel Oil 120CST light diesel LDO heavy diesel MDO Dalian 4680 4820 6360 - Qinhuangdao 4700 4780 6750 - Tianjin - - 6950 - Qingdao 4600 4700 6800 - Lianyungang 4700 - 6900 - Shanghai 4630 4730 6930 5930 Guangzhou 4900 4680 7020 - Zhanjiang - - 5180 - Nanton