wafer type check valve

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Specifications

Double flanged Double Eccentric Butterfly Valve
PN10/16/25
DN100 ~ DN2000

Technical Specifications

- Design and manufacture: EN593, EN1074-1 and 2

- Face to face dimension: EN558-1 Series 14 (DIN3202 F4)

EN558-1 Series 13 (BS5163)

- Flange dimensions and drillling: EN1092-2 PN10/16/25

- Size range: DN100 - DN2000

- Max. working pressure: 1.0/1.6/2.5 MPa

- Inspection test: EN12266

- Working temperature: -15°C to +80°C

- Suitable medium: water

Main Fetures

- Double eccentric disc reduces seal wear and torque

- Body seat ring is welded directly on the body

- Bi-directional flow and low head loss

- Disc sealing ring to be replaceable on pipeline without dismantling the valve

- Body and disc inside and outside epoxy powder coated (min. 250 microns)

- Opening and closing indicators are provided

- Coupling flange for electric actuator in compliance with ISO5211

- Gearbox and electric actuator operation available

Main Parts and Materials

Body and disc: ductile iron EN GJS500-7/400-15

Shafts: stainless steel AISI 420

Body seat ring: stainless steel AISI 304

Disc sealing ring: EPDM or NBR

Retaining ring: stainless steel or ductile iron

Shaft bearing: Du bushes (self lubricating bushes)

Shaft bush: gunmetal

Q: Looking at a few marshall amps and i came across this whole valve amp thing. I've heard about it before, but never really understood it. What types of valves are there?! (i think i've heard of power amp valve) and what type of marshall amps have valves?! Can some of them be part valve and then have that valvestate thing?! :s all pretty damn confussing Cheers: Marshall were big name in Amps when pretty well everything electronic used valves. Some valves were quite small, some larger, and some are still used today in powerful transmitters. There are those who swear that the sound produced by a valve amplifier is far better than a solid state one. Valve technology takes up much more space than solid state, so miniaturisation is a problem, and also uses much more power and produces a lot of heat. Now solid state is capable of producing high power audio amplifiers which use less power and take up less space, so have become the preferred method. Nevertheless, there is a strong following even today for a good high powered valve amplifier. And yes, it is quite possible to have a valve and solid state mix. The solid state works at the input stage, and the valves take over at high power output levels, but I am not sure what the purists would think about this hybrid usage .

Q: We are using safety valves of gas and steam for detergent slurries. Why they do not function?: I suggest that you rethink that application. Even if the valve does function it might not pass enough slurry quickly enough to relieve the pressure overload.

Q: I got new sprinkler valves put in (Rainbird anti-siphon kind). Every time a valve shuts off, it makes a loud squeak, kind of like plastic rubbing (NOT a bang like water hammering). Is this normal and will it go away? If not, what could be the problem? This is annoying because the sound can be heard in the house as it echoes through the pipes.: Rainbird Anti Siphon Valve

Q: Any way to treat the calcification of the valves?Is valvotomy only an option for youths?: Every case and every patient is different. You could opt for a valvuloplasty or management with medications.

Q: I know i have to buy a recirculating valve but should i drop 250 on the perrin or will any brand do? how important is a high quality BOV?: To correct alot of false answers here: DO NOT GET A BLOW OFF VALVE. A Recirculating valve is called a Bypass Valve. All Blow Off Valves go to the atmosphere. The only reason to get a new Bypass Valve is if you are running a bigger turbo and the stock one starts to leak. Im running 20psi on my stock turbo and the stock bypass valve holds fine.

Q: I have a 78 honda hawkii 400 or cb400TII and I need to know what the valve gaping needs to be set to: Cb400 Hawk

Q: Where is the PCV valve located on 2001 Nissan Altima: either in the intake or the valve pan.

Q: I need to find a solenoid valve with the following specifications:2-way, 1 inch nozzles (both male)needs to be able to handle the pressure from a CO2 tank (~1000 psi)needs to work with 12vdc less than 10 ampsits either a solenoid, or some other type of valve which will release the CO2 when we tell it to electronically: The leading maker of solenoid valves is ASCO. Their website is shown below. If a valve that fits your application exists they probably make one. If you can't find a suitable solenoid then you need to consider a pneumatic valve operated by a solenoid valve. That is a common solution for a problem like yours. As to the male connections. If they are not available then you can just use a pair of threaded fittings (pipe nipples) to change the configuration.

Q: I want to wash it but don't know what to oil the valves with because I was told not to use mellophone/trumpet valve oil so would the sewing machine oil be okay to use with out damaging me Horn?I not any other safe substitutions?: NOOOOOOOOOO My best friend did that and it made her valves stop working and she had to let the repair men fix it. Just go but some oil

Q: i heard i should get one rather than a Dump valve, well?, should i?: Depends on the fuel injection system you have and whether or not you want it to make noise or not then a dump valve it is.Now,we need to know what kind of fuel injection system you have.If the car has a mass airflow sensor then a dump valve will not work.You see,all the air that enters the motor must be metered by the MAF sensor.If you have a dump valve,when you let of the gas,the pressurized air is vented to atmosphere.The engine control module is expecting X amount of air to enter the engine.It just got released to the outside.see the problem.

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