hydraulic directional control valve BV-LY-0211

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hydraulic directional control valve
10 years history
18 months after sales service
GB/JB/ISO/CE/BV certificate

hydraulic directional control valve manufacturer

The data point :

Nominal pressure :PN10-16

Nominal diameter:DN50mm-1000mm

Suitable medium:water/gas/oil/air etc

Working temperature :-23~121

The features :

Wafer ,lug or U type flanged body style fit between FF or RF flanges

PTFE bushing ensure the maximum shaft support and centralized alignment

360 degree polished disc assure positive on-off

Hard -backed cartridge seat

One piece shaft ,pinned and splined disc

Universal ISO5211 mounting platform

The material:

Part name	Material
Body	Stainless steel,Gray cast iron ,Ductile iron,Carbon steel,Aluminum bronze etc
Disc	Cast iron ,Stainless steel ,Plated ductile iron,Carbon steel,Aluminum bronze etc
Stem	Carbon steel,Stainless steel
Seat	PTFE,EPDM,NBR,NR,Viton etc
Bushing ring	PTFE,Aluminum bronze

Q: Standard and specification for pressure test of valves: (11) when the valve with drive device is tested and its tightness is tested, the sealing test shall be carried out by using the driving device to close the valve. For manual drive units, seal test shall also be done with the actuating closing valve.(12) the by-pass valve installed on the main valve after the strength test and the sealing test. The strength and tightness test of the main valve is carried out. The main valve should be opened when the closing member is opened.(13) iron valve strength test, the application of Pratia tapping valve and valve cover, check whether there is any leakage.(14) the valve test, in addition to the provisions of the plug valve to allow sealing surface oiling, other valves are not allowed in the sealing surface of the oil test.(15) when the valve pressure test, the blind plate on the valve pressure should not be too large, so as to avoid deformation of the valve, affecting the test results (cast iron valve if pressed too tight, will be damaged).(16) after the valve test pressure, should promptly remove the water and clean the valve, should also be prepared for the test record.

Q: What's the valve specification DN20?: It's not clear what you want to ask

Q: Where is the hydrant main valve?: The intake valve of the upper and lower ring pipes of the riser of the fire hydrant is generally located at the highest and lowest floors.The general use of the valve rod flange gate valve.Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire. Indoor fire hydrant and outdoor hydrant. The fire fighting system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some automatic sprinkler system, water gun system, gas fire extinguishing system, fire detection system, water mist system and so on. Fire hydrant mainly for fire engines from the municipal water supply network or outdoor fire water network to implement fire fighting, can also be directly connected to the hose, water gun fire extinguishing. Therefore, indoor and outdoor fire hydrant system is also one of the important fire fighting facilities.

Q: What is the difference between valve j941H-40 and j41H-40?: I see "valve design manual" category code table, in front of 9 of the electric drive, no 9 is the ordinary hand wheel drive.

Q: What does the valve stroke mean?: The distance from one position to another. Usually in the first position of the cut position, the second position is put through the position. Unless the valve has 3 positions.

Q: The expert can tell me how to install this valve, and what fittings to use on both sides: On the first floor, the two floor adds up to the perfect answer: look at the flow direction and weld it directly to the pipeIf the process permits, you can first weld on both sides of the flange, modified into a flange butterfly valve, and then installed on the pipe, easy to overhaul later

Q: What are the valve types H, F, and Y? What are the meanings of these 3 letters?: Please refer to "JB/T308-2004 valve model preparation method"Sealing surface material codeH Cr13 stainless steelF fluoroplasticY cemented carbide

Q: The valve has a clear opening and closing sign. What does this sentence mean?: Simply speaking, a gate valve, hand wheel will be above the arrow and open and close the text, indicating that you are clockwise valve open or counterclockwise valve open, so as not to make mistakes, accidents. Other valves are similar in sense and sign.

Q: What are mine valves?: You want to see what works on the use of what media, in the choice of what type of valve is more appropriate. Shanghai HuquanValve manufacturers, veteran enterprises, trustworthy.