wafe type butterfly 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)


Q:One day i was cleaning my trumpet's third valve. when i tried pressing the key it was goig inok but near the end it gets stuck and gets unstuck like a second later.how can i fix this problem with out spending too much money?
clean the valve and the tube the valve fits in. You will need to take the bottom cap off and with valve oil on a soft cloth (t shirt) wipe out the inside completely wipe down the valve with the cloth also. Clean the spring that pushes the valve back up. Use a tiny bit of vaseline and a liberal amount of valve oil on the valve. Replace everything. If this doesn't do it, take it to the repair shop.
Q:I heard alot about blow off valves making your engine run rich, but I want to get a blow off valve or bypass valve when I get a wrx. (I know some people think they're gay) but i dont care how loud it is, just want that sound. so what's the difference? I've been looking at this one:
Bypass Valve Turbo
Q:I was diagnosed with a VSD and a Biscuspid Aortic Valve and my doctor has started hinting towards sugery. I found out that the only reason i haven't had surgery yet is that it is stable enough to wait until technology improves so i am not left with a large scar. i was just wondering what this surgery would entail and if anyone has had it. I am 19 years old and kind of worried about it...
My daughter was diagnosed with this same thing when she was 10 days old. It has been a miracle that she has not needed any medication or surgery. She meets with the cardiologist 1 time a year. They told me if she stays as stable as she is she will not need surgery. Maybe if your condition stays as stable as it is now, you will never need surgery. I know that when they repair a VSD they do open heart surgery and put a patch over the hole that is in your heart. Sometimes these patches fail and they do surgery 2 or 3 times and it is common. I know that Bicuspid Aortic Valve is an inherited abnormality and that it becomes more sever in your 30's and 40's. Most patients with bicuspid aortic valve whose valve becomes dysfunctional will need careful follow-up and potentially valve replacement in their third or fourth decade of life. Patients with bicuspid aortic valve should be followed by cardiologist or cardiac surgeon with specific interest in this valve pathology. Average lifespan is similar to that of those without the anomaly. In many cases, the condition will cause no problems. However, especially in later life, a bicuspid aortic valve may become calcified, which may lead to varying degrees of severity of aortic stenosis and aortic regurgitation, which will manifest as murmurs. If these become severe enough, they may require heart surgery. I hope this helps and good luck with everything.
Q:like they say on 4 strokes you gotta go get valve jobs, and they cost bout 300 they say? well what does the mechanic do? can it be done at home and your just adjusting them?
A okorder /
Q:My mother was dx'd with Mitral Valve Prolaspe 20 years ago....she use to take meds for it. My question is she is having very bad fatique symptoms.. uld this be caused from her MVP getting worse???
Some okorder
Q:I think the piece leaking is a valve;it is one solid piece of copper with two tubes, one which is a half inch that connectsinto the incoming hot water and then a small outgoing one that connects to the faucet and I don't know how to find a replacement part .. I think it is a Delta but I am not sure ... the house is 10 years old but where can I just find a valve instead of replacing the entire faucet if I don't know what the make or model is ?Any websites with pics of replacement valves for Roman Tubs??
Remove the valve and take it to a plumbing supply store. Home Depot and the like may have what you're looking for; but you're more likely to find it at a plumber's supply. They are the only ones I've ever found who carry odd bits.
Q:HI ever one i have a 1969 1500 beetle engine i have just but 1600 piston and barrows on it but when i but the rockers on i have no valve gap at all. ive wound out the adjusters all the way and i still can not get a feeler gauge between the rocker and the valve. Please help cheers Adam
The problem could be that the crank shaft has not been turned to the place to adjust the valves. The push rods could be the wrong length ones too.
Q:i was filling the tire on my car and the valve stem completely came out when i finished, quickly deflating the tire. i could push it back in but then the process repeated itself when i tried refilling it again. is there part of the stem i'm not seeing. the stem that i saw was long and straight and threaded. advise, thoughts? thanks.
are okorder /... to see a picture of one The valve is threaded into the stem The stem has threads inside and out ,internal threads are for the schrader valve and external threads are for the stem cap If the stem came out there is damage to the stem and it needs to be replaced ,but if the valve came out try using a schrader tool to screw it back in
Q:I have a training I will be attending on Valve actuator and subsequently an exam. I need fundamental knowledge of ROV. What are the types of ROV. The Maintenance Of ROV ? and the different Type of ROV actuators
The term remote operated valve is slightly misleading, as it really means remotely controlled valve. Normally the valve actuator is mounted directly on the valve body so that it can open and close the valve. The majority of valves are either rotary ball or sliding gate type. Valve actuators can be operated by electrical methods, pneumatic or hydraulic, or by a combination. The most common types of actuator for industrial use are motorised electrical and pneumatic. Motorised valves will have a reversible motor for opening and closing, whilst pneumatic types will have a double acting cylinder with a 5 port 2 position or 3 position control valve. The control contactors and valves would be located in a control room, possibly controlled by a PLC or similar automation controller. In most cases position feedback will be supplied from the valve by means of limit switches to indicate its position, and in the case of motorised actuators, the running current can be monitored as an indicator of valve condition. If a pneumatic valve is jammed, the actuator will simply stall without damage, but for electrical actuators some form of overload protection is required to prevent excessive current load and overheating. The majority of industrial valves require little maintenance, but regular inspection for security, electrical connections, gland sealing etc should be scheduled at intervals suitable for the working environment.
Q:Im 17 with a Bicuspid Aortic valve and hypertension (around 160/85). Only other family member with teenage hypertension is grandfather. Im on 2 different types of hypertension medication which only brings blood pressure down to 138/75. It still jumps to 157/85 on medication. I have leakage of my valve that has not gotten worse or better since starting the medication (first checked in September, medication started in Novemberish, now April). No stenosis yet. Any idea what im looking forward to in next couple years? Or is this stuff spontaneous?
Most patients with bicuspid aortic valve whose valve becomes dysfunctional will need careful follow-up and potentially valve replacement at some point in life. Regular EchoCG and MRI may be performed. BP reading (1) 160/85 mmHg. Stage 2 hypertension (Isolated systolic hypertension) (moderate). If the systolic blood pressure is elevated (140) with a normal (90) diastolic blood pressure (DBP), it is called isolated systolic hypertension. Pulse pressure is 160--85 = 75 mmHg. Optimum pulse pressure is 40 mmHg. A higher pulse pressure may mean your heart's valves are leaky (valve regurgitation). BP reading (2) 138/75 mmHg. (Prehypertension) Pulse pressure is 138--75 = 63 mmHg. Pulse pressure 40 mmHg is abnormal. BP reading (3) 157/85 (Stage 1 hypertension) (mild) Pulse pressure is 157--85 = 72 mmHg. Cardiovascular mortality risk doubles for every 20 mmHg of systolic BP or 10 mmHg of diastolic BP over and above the normal blood pressure of 120/80 mmHg.

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