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: Okay, I got this lawnmower its a craftsman with a briggss and stratton engine, and I use this mower to cut grass in the summer. My question is, I have to get this mower serviced like every 2 weeks. See, the problem is always the valves comes out of adjustment. It only has 2 valves, and a long time ago, I broke one of the studs for the valves. And some guy put another valve on it. Ever since then it hasnt ran good. Iv'e took it many times to get it worked on, and it will run great for about 2 weeks. Then the valves go out it's very hard for it to turn over, and it wont run. Whats the deal here? I hear that you should only have to adjust your valves once a year. What could be wrong?: haha they have been given me 2 valves briggs and value trans will bypass next shrink your cost now sorry I hate craftsman now they bit me and distinctive others guess ur mower is green with the cup holder,

Q: the #2 valve on my marching bartone wont lock into place instead when i play the valve turns and the air is flow is disrupted i believe that the part that holds the valve in the right positoin is broken if so how much would it cost to repair?: Chances okorder /

Q: Hi, I was wondering if it takes a minute or two for the water to actually turn on after turning the valve? I've turned it as far as I can counter-clockwise but there's still no water. Is there something else that needs to be done to get the water back?: you should get water immediately unless water is blocked

Q: I recently adjusted the valves and put new valve covers on my bug and now I have a leak around the fron corner of one of my valve covers. What happened? What can I do?: probably the gasket slipped or the bolts need to be tighten more but just snug them down.

Q: I noticed when I pulled my pcv valve off the valve cover the entire guts were missing. what would this make the car run like?: what it really is is a check valve it will flow one way but not the other meaning it lets the motor vent out pressure and no air or debris can be sucked or drawn in its better to have a functioning one cause it can affect performance overall cause it usually is working with emissions devices now to be honest replacing it is almost mandatory, but you actually might not notice any difference at all after its fixed

Q: The valves on our 2005 Pontiac Sunfire are bent and need fixing. Any idea of how much it might cost to have them fixed at a shop? Any estimates?: So how did the valves get bent? My guess is there is more damage than that. Usually bent valves occur because the engine is not cared for properly and the timing belt is not replaced as spec'd. The broken timing belt then leads to valve clash which can often damage the pistons and bearings. Do you know the rest of the engine is OK? My advice si not to proceed unless you are certain. A junk yard and rebuilt head for your engine will cost $1,500 installed. If other parts of the engine are bad, this is wasted money. Astrobuf

Q: why can't i just use solenoid valves hooked to a small bank of relays(using relay logic to control operation) connected to thermostats to control a multi zone boiler system? it would work, but can i do it, why must i use expensive zone valves?: Its just an educated guess but I would say it would cause system shock if a valve just snapped shut as against closing gently. Assuming the system was shutting down as a zone valve shuts the control switch opens and turns off the plant whilst the valve is still partly open. With a solenoid unless you fit a timer to pre shut off the plant then shut off the solenoid you would probably cause some plant damage. Also by the time you have wired all that lot up you may as well do the job with a zone valve.

Q: I saw that they sell a kit to block off the egr valve in my dodge neon. Since this was on a performance site what will this do? Will blocking off the valve give me more horsepower? Should I do it or not? Thanks: If your vehicle has to pass an emission test in the state where you live, it will fail due to high NOX emissions. Aside from that, it's illegal in all 50 states. Generally speaking, blocking off the EGR will result in poorer fuel economy, possible engine detonation or pinging and higher combustion temperatures.

Q: Its a 1981 Monte Carlo SS with a GM 350 crate motor. There is oil all over the heads valve covers. It isn't my car, but I was thinking of buying it..Thank you.: valve cover gaskets leaking, oil cap not tight enough or the intake gasket leaking.

Q: Hello. I am interested in purchasing a Hydroclean Fill Valve for my toilet. Are these good fill valves? Thanks!: who cares, a toilet fill valve only costs a few bucks. as long as it opens and closes it's a good valve. if it only lasts for a year then it's a piece of junk and you should try another brand. it's not a major decision

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