GAS VALVE ON/OFF DETECTION APPARATUS FOR CHECKING THE OPENING OF A VALVE FOR A GAS SERVICE PIPE OR GAS TANKPURPOSE: A gas valve on/off detection apparatus is provided to easily check the lock or release of a gas valve and thus to prevent safety accidents.;CONSTITUTION: A gas valve on/...
气体管道止回阀 Gas pipe valve本发明公开了一种气体管道止回阀,包括阀体和阀瓣,阀瓣与阀体内密封面紧密配合,阀瓣上固定连接有转轴,转轴铰接在阀体上且另一端延伸出阀体外连接有用于开启或关闭阀瓣的摇杆,转轴与阀体铰接处密封配合,还包括用于阀瓣开启后限制阀瓣位置的限位装置,限位装置包括固定在阀体上的传动机构和...
for the flow rate is exceeded, Pipelife Gas-Stop™ closes service lines within a fraction of a second and gas main lines within minutes. The increased pressure forces the shut-off-element to retract into the flow, and due to the pressure in the pipe network the valve stays securely ...
28、根据管路焊接时Ar Purge(防止管路内部焊道氧化)的需求 *各位置阀的选择Isolation Valve (On Main /Submain) Welding with 2 purge portBottom Valve (On Main /Submain)Welding with 2 purge portTake off Valve 3/4" ,15A or larger Size: use welding with outlet purge port valve 1/2" or smaller...
Electric thermostatic valve gas thermostatic valve for oventemperature control valve is based on the principle of liquid expansion and contraction,and adjusts the opening of valve by changing the pressure of liquid volume in the temperature package,so as to control the heat medium f...
and is perpendicular to it when closed, making for easy visual confirmation of the valve's status. In the case that a ball valve is used for cryogenics or product that may expand inside of the ball, there is a vent drilled into the upstream side of the valve. This is referred to as ...
Structure: Pig Launching Valve+Pig Receiving Valve Sealing Type:Soft/Preliminary Metal Sealing and Secondary Soft Sealing/Metal-To-Metal End Connection: Flanged Driven Type: Manual/ Pneumatic/ Electric/ Gas Over Oil Application Field: Natural Gas/ Petroleum/ Offshore Platform/ Chemicals/ ...
DN15-DN25 Brass Air Vent Valve Automatic Air Pressure Vent Valve US$1.95 / Piece Brass 3-10bar Adpator Air Vent Valve Air Release Valve US$1.95 / Piece Acs OEM/ODM Hydronic Water Thermostatic Mixing Valve US$25.00 / Piece High Quality Natural Brass...
Commodity Name: Natural Gas Ball Valve Description: brass forged body, brass ball chrome plated,, brass stem and steel handle, with brass Union, easy discharge Union design for PPR pipe Application: GAS Material: Forged Brass (CW617N, CW614, CW602N, ASTM C37700) Size: 3/...
Medical gas zone valve boxes can be used to shut off the gases distributed to different individual areas of the hospital. A single box can hold from 1 to 6 valves, allowing control of 6 types of gas. All valves are cleaned for medical gas ser...