BUTTERFLY VALVE CENTER LINE TYPE WAFER DUCTILE IRON DN50-DN1000 ISO/ BS EN/ DIN/ API

Ref Price:
$50.00 - 1,000.00 / pc
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
100 pc
Supply Capability:
5000 pc/month

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Product Description:

BUTTERFLY VALVE CENTER LINE TYPE WAFER DUCTILE IRON DN50-DN1000 ISO/ BS EN/ DIN/ API

Quick Details

Standard or Nonstandard:

Standard

Structure:

Butterfly

Pressure:

Normal Pressure

Power:

Manual

Material:

Casting

Temperature of Media:

Normal Temperature

Media:

Water

Port Size:

Standard

Place of Origin:

China

Model Number:

dn 50 to 1000

Brand Name:

CNBM

Application:

General

Product name:

center lined butterfly valve wafer type

Type:

Buttefly

Body material:

Iron

Certificate:

ISO 9001

Size:

Customrized

Brand:

CNBM

Delivery time:

15-30 day

Port:

Tianjin

MOQ:

100piece

Packing:

According to customer's requirment

Packaging & Delivery

Packaging Details:center lined butterfly valve wafer type packing:according to customer's requirment
Delivery Detail:15-30day

Specifications

Center Line Butterfly Valve Wafer Type 
1.Size: DN50 - DN1000 
2.Concentric Disc 
3.Pressure:PN10,PN16

Center Line Butterfly Valve Wafer Type            

1. Driving Device: Available with handles,gear operators,electric or pneumatic actuators

2. Seat : EPDM,NBR,NR, or other

3. Integral Stem Design:Ensures the dependable and positiv disc contriol

4. Disc:High precision disc exterbal profile,reach the requirement of bubble-tight,small start and stop torger usages life of seat

5. O-ring:Primary and secondary stem seal

6. Side Seal:Without flange gasket

 

Feature:

1.Small in size and light in weight,Easy instllation and mintenance,it can be mounted wherever needed.

2.Simple and compact construction,quick 90 degrees on-off operation.

3.Miniminzed operating torque,energy saving.

4.Flow curve tending to straight line.Excellent regulation performance.

5.Long service life.Standing the test of thousands opening/closing operations.

6.Bubbles-tight sealing with no leakage under the pressure test.

7.Wide selection of materials,applicable for various medium.

 

CAST IRON BUTTERFLY VALVES
Material Specification
PartMaterialEN Spec.
BodyCast IronA126 Class B
Ductile IronA536 Gr.65-45-12
DiscDuctile IronA536 Gr.65-45-12
BronzeB148 C95400
Stainless Steel 304A351 CF-8
Stainless Steel 316A351 CF-8M
ShaftStainless Steel 410A276 S410 00
Stainless Steel 431A276 S431 00
Seat RingEPDM /NBR
O-RingEPDM /NBR
BushingPTFE
BronzeB62 C83600
Valve Standard
ISO 5752/BS5155/BS EN 593/MSS SP-67/API 609
Pressure Temprature and Rating
Working Pressure16bar/27.5bar
Testing pressureShell: 24bar/37.5bar
Seal: 17.6bar/27.5bar
Working Temperature-20°C to 110°C EPDM Seat
-10°C to 80°C NBR Seat
Suitable MediaWater, Oil& Gas
Description Products
SizeDN40-DN1200
End flangeANSI B 16.1, EN 1092, AS 2129
Face to faceANSI B 16.10; EN 558-1 Series 20
Top flangeISO 5211
Related products1. Carbon steel nipples and sockets2. Flanges
3. Carbon steel butt-welding fittings4. Pipes
5. High-pressure fittings6. Valves
7. P.T.F.E .thread seal tape8. Brass fittings
9. Ductile iron pipe fittings10. Copper fittings
11. Grooved fittings12. Sanitary fittings, etc.
CertificateBSI, ISO9001:2008,FM,UL
ApplicationsFresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.
Buyer’s drawings or designs are available.
Package1. Cartons without pallets.
2. Cartons with pallets.
Or as buyer’s requirements.
Delivery detail
According to the quantities and specifications of each order.
Normal delivery time is from 30 to 45 days after receiving the deposit.

 

 BUTTERFLY VALVE CENTER LINE TYPE WAFER DUCTILE IRON DN50-DN1000 ISO/ BS EN/ DIN/ API

BUTTERFLY VALVE CENTER LINE TYPE WAFER DUCTILE IRON DN50-DN1000 ISO/ BS EN/ DIN/ API

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Q:What are single eccentric and double eccentric in butterfly valves? What's the difference, please explain in detail?
Three eccentric butterfly valve: to high temperature, must use hard seal, but the leakage is large; to zero leakage, must use soft sealing, but not high temperature. In order to overcome the double eccentric butterfly valve this contradiction, and the butterfly valve for third times eccentric. The so-called third eccentric, that is, the shape of the sealing pair is not a positive cone, but rather oblique cone.Variable eccentric butterfly valve: variable eccentric butterfly valve is unique in that the valve stem axis installation disc is a three shaft type structure, the three stem shaft two concentric shafts, while the center section of the shaft center line and both ends of a center axis deviation distance, the installation disc in the middle section of the shaft. The eccentric structure makes the disc become double eccentric at full open position, and becomes eccentric when the disc rotates to the closed position. Due to the action of the eccentric shaft, near the close, the butterfly plate sealed to the seat by moving a distance within the cone, the butterfly plate and the valve seat sealing surface to achieve consistent and reliable sealing performance.
Q:Can the inlet and outlet of butterfly valve be reversed? Why? What will happen if the reverse gear is installed?
Hard seal butterfly valve in any case, the reverse loading will cause tight seal.
Q:What do you mean by manual butterfly valve DN100 D341X-10?
DN100 refers to the inside diameter of the butterfly valveD stands for butterfly valves3 represents the turbine drive4 represents the flange connectionThe 1 represents straight throughX is the representative of the Dengqen rubber seal10 represents the pressure of 1.0Mpa (10 kg)Manual butterfly valve, also known as turn over plate valve, is a simple structure of the control valve, but also can be used for low pressure pipe medium switch control. Butterfly valve refers to the closure of parts (valve or butterfly plate) as the disk, around the valve shaft to achieve rotation and closing of a valve, the main cut off on the pipe and throttling role. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation. Butterfly valve used in furnace, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting and power generation environmental protection engineering system, conveying a variety of corrosive and non corrosive media pipeline, used to adjust and cut off the media flow.
Q:Butterfly valve, two-way pressure and one-way pressure what is the difference?
The positive pressure and the reverse pressure, the pressure when the medium returns
Q:mitral valve prolapse?
Dear Madam, I am a cardiologist sending this article for you. Hope it helps you. Mitral valve prolapse, sometimes called MVP, is a common heart valve disorder. The mitral valve is between the left atrium and the left ventricle of the heart. It has two leaflets (flaps) that control the blood flow. MVP occurs when one or both of the leaflets are enlarged or have extra tissue. MVP is usually harmless. However, major complications can occur, including a blood clot in the brain and an infection called infective endocarditis involving the mitral valve as well as other valves. MVP appears twice as often in women as in men. It is most commonly a hereditary disorder. Some people with MVP have no symptoms. However, most patients experience a rapid or irregular heartbeat, shortness of breath, light-headedness, and chronic fatigue. Many patients also suffer from migraines, eating and sleeping disorders, an overactive or inflamed thyroid gland, diarrhea, and cold hands and feet. Emotional stress often magnifies the symptoms. Doctors generally prescribe regular exams and aerobic exercise for people who have MVP. Patients also are advised to restrict their intake or use of high-carbohydrate foods, caffeine, and decongestants. Some patients may need beta-blockers and specific antiarrhythmic medication. More severe cases may require surgery to repair or replace the valve or to insert an electronic regulator, such as a pacemaker or defibrillator.
Q:Which is better, the round two lobe butterfly valve?
Round type double butterfly butterfly valve is the first choice of Shanghai Machinery & Equipment Co., Ltd., the company is a professional design, manufacture and sale of central air-conditioning products at the end.
Q:What's the difference between a clip type turbine butterfly valve and a flanged turbine butterfly valve?
For clip butterfly valves, there are no flanges at the ends of the butterfly valve. There are only a few guide bolts. The valve is connected with the end flange with a set of bolts / nuts.In contrast, the demolition to facilitate some of the lower cost of the valve, but the drawback is that a sealing surface problems, the two sealing surfaces have to be taken apart.Flange butterfly valve at both ends of the flange, and pipe flange connection. The seal is relatively more reliable, but the valve is of relatively high cost.
Q:Does the pneumatic butterfly valve need electricity?
Pneumatic butterfly valve generally not need steam can Shandong Yuhong automatic control valve
Q:Classification of telescopic butterfly valve
(2) temperature butterfly valve. 120 C
Q:What if the function of a valve retainer?
TRhe retainer and locks works together to hold valve to spring and keep valve from falling into the cylinder and spring from coming off the top. The locks are tappered, small end at bottom, big end at top. You compress the spring down, drop retainer over valve, put locks in groove of valve stem and pull up on the retainer to lock the retainer and locks in place, the relese the pressure off your spring compressor and the valve spring now holds pressure up on retainer which forces up on the big end of locks and holds everything together

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