Ductile Iron soft resilient DIN3352F4 Gate Valve

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Product Description:


Ductile Iron soft resilient DIN3352F4 Gate Valve

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)

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Q:What is the purpose of those new valves on bikes that are longer and skinnier and that you?
There are schrader valves which are bigger diameter and are used also for automotive tires. They have a spring-loaded center pin that gets pushed down and opened when a inflating head is used. The spring is what keeps the air in the tube. The presta valve is the skinnier one. It does not rely on a spring to keep the valve close. The air pressure inside the tube keeps the valve closed. Generally, less expensive bikes use schraders while better bikes use prestas. All decent pumps have pump heads that accomodate both types. Either it is done by manually reversing the inside of the head assembly to change between presta and schrader or the head automatically adjusts or you use the appropriate one when the head has holes for both.
Q:valve seals??????????
Valve seals smoke on start up because they leak down as it sits parked, and does some when running. You will have to remove the valve springs, so need an air compressor, valve spring tool and a whistle so you can find top dead center on the compression stroke for each cylinder.
Q:Whats wrong with my trumpets third valve slide!?
get it back to the store where you bought it or to a repair shop. This is a very unusual thing.
Q:Valve cover painting in 1990 BMW 525i?
If you want just flat black paint, grill paint works great and gives it that crinkled effect. You can get it at most hardware stores.
Q:Does anyone know where the erg valve on a 2001 isuzu rodeo is located?
I have that very vehicle and have had to locate mine, it is on the passenger side of the engine towards the firewall and it has an 5 pin electronic connector (Mine is Black) on top of a dark grey to black colored cylinder next to the cover on top of the engine. But before you go through replacing it (as it is around $200 to $300 ) try cleaning it with spray type fuel injector cleaner and work the stopper inside in and out until it frees up. This will need to be repeated as the faulty item in my vehicle was an o2 sensor of which there are 4 located throughout the engine. So you will need to have a decoder to check and see which is to blame. Most parts stores will read it for free. Good luck. P.S. my o2 sensor cost about $60 for the part.
Q:Rotary valve VS axial flow? (Trombone question)?
We had one that was hard to dial. Thought I broke the tip of my finger off! That was the day of the 5 digit phone number.
Q:What is anti-surge valves testing?
An anti-surge valve is a valve that automatically opens to produce a flow through a centrifugal compressor to prevent surging of the compressor at a low flow rate. At surge conditions, there is no forward flow in the compressor and the compressor shaft will move foreword and backwards against the thrust bearing. This is damaging to the compressor and causes a terrible noise, that once you hear a surging compressor, you will never forget it. On an air compressor, the surge control valve will discharge to the air through a muffler. For process gas, it will discharge to another part of the process. The answer to your question depends on whether the data relates to the flow through the anti-surge valve of the compressor. It could even be a record of how fast the surge control valve operates. Based on this, no one can give you an answer for certain. TexMav
Q:Are valve stem seals the problem?
The symptom of bad valve stem seals is blue smoke after sitting overnight. But once that smoke is gone, a bad valve stem seal won't have any effect on engine running or idling. And it certainly won't cause a misfire. Worn valve guides can do all those things. You have far more serious problems than just valve stem seals. Get a wet/dry compression test and a cylinder leakdown test to isolate the problem to either valves or rings.
Q:asymmetrical two way valve supplier?
Valve company has been able to fulfill the requirements of its customers according to the highest standards, and always consider the customer satisfaction, so we would be grateful to receive their viewpoints and comments. So we also hope to contact us if they need further information, confirmation on any product. Please note that according to continually work on improving our products, all products materials, specification, dimensions, and etc. listed are subject to change without notice.
Q:brake proportioning valve?
Yes The valve causes your rear brakes too apply before the front brakes .Safety reasons,(If your fronts apply first chances are the rear of the vehicle could come around on you) It utilizes spring pressure and offset valving. There is a rubber button that you must depress to bleed the rear brakes It's an override.

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