Hot Sell Butterfly Valve Concentric Rubber Wafer PTFE 360 Hard-Backed ISO 5211 Shaft Support

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$15,000.00 / pc
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China Main Port
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TT or L/C
Min Order Qty:
20 sets pc
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To Order pc/month

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Description of Butterfly Valve

 

Concentric Butterfly Valve has a resilient rubber seat with a metal disc. This type of butterfly valves can be used for isolating or regulating flow.

 

Wafer, Lug or U type flanged body style fit between FF or RF flanges

 

PTFE bushing ensure the maximum shaft support and centralized alignment

 

360°polished disc assures positiveon-off

 

Hard-Backed Cartridge seat or Edge-Boot seat

 

The pin,spline or square connection are all available

 

Universal ISO 5211 mounting pad

 

Technical Data of Buttefly Valve

SizeDN40-DN1200
General DesignISO 5752/BS 5155/API 609
Mounting PadISO 5211
Face to FaceAPI 609/EN 558-1 20 series etc.
Flange DrillingDIN 2501 PN10/16
Inspection and TestAPI 598

 

﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.

 

Materials of Parts of Butterfly Valve

PartsDescriptionMaterialMaterial
1BodyCast Iron/Ductile Iron/WCB
2BushingPTFE/Bronze
3O-ringEPDM/NBR
4ShaftStainless Steel
5DiscStainless Steel/Al-Bronze/Ductile Iron
6SeatEPDM/NBR/VITON/PTFE
7PinStainless Steel

 

﹡For other material request,please kindly contact CNBM directly.

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Q:How do hydraulic butterfly valves work?
The valve hydraulic device is mounted on the valve drive shaft. The driving shaft of the valve is fixed with a transmission spline, and the crank (with an outer spline) is sleeved on the driving shaft. When the hydraulic system works normally, through the gear sleeve, the transmission spline is connected with the crank. Thus, the hydraulic cylinder drives the crank, and the spline on the crank passes the torque to the transmission spline by means of a gear sleeve. Because the driving spline is fixed on the driving shaft, the driving shaft rotates and drives the valve plate to start and close. Sorry, the picture doesn't come up
Q:What's the material of the butterfly valve seat?
The seating material shall meet the following criteria:1) fluid compatibility, including expansion, hardness loss, permeability, and degradation;2) hardness;3) permanent deformation;4) the degree of recovery after load removal;5) pull in and compressive strength;6) deformation before fracture;7) modulus of elasticity.
Q:Butterfly valve in use when should pay attention to what problems?
After the last in the pneumatic butterfly valve after use, also need to be cleaned immediately after the valve is closed, should use soft cloth to clean the valve, which may have some impurities, dirt removal, and oil lubrication, so it can better guarantee the use of the next.
Q:Butterfly valve common faults and treatment methods?
Three, summary:Only familiar with every detail of circulating water pump outlet valve and butterfly valve equipment, timely and thorough maintenance and strict debugging, to ensure the safety and reliability of equipment operation, to ensure the healthy and orderly operation of equipment.
Q:Do you use the straight stem butterfly valve in the fire fighting engineering?
Bar valve bar, did not hear the bar with butterfly valve, ah, there are pairs of folder and hand wheel type bar
Q:Butterfly valve is generally used in what position?
Butterfly valve used in furnace, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, environmental protection, chemical smelting and power building water supply and drainage engineering system in conveying a variety of corrosive and non corrosive media pipeline, used to adjust and cut off the media flow.
Q:Can the inlet and outlet of butterfly valve be reversed? Why? What will happen if the reverse gear is installed?
Our factory butterfly valve has two-way sealing, can be installed, and will not leak. If there is an arrow above the butterfly valve is one-way seal, that is, can not be installed. One way sealing will cause leakage. If you have any other questions, you can bring them up. Let me help you with that
Q:Why do you need two butterfly valves in the water well?
Check the water gauge and check valve on both sides to facilitate the maintenance and replacement of water meter and check valve.
Q:Classification of telescopic butterfly valve
2) additional torque seal butterfly valve. The seal is produced by a torque that is applied to the valve shaft(2) pressure sealed butterfly valve. The pressure is greater than the pressure on the seat or plate(3) automatic sealing butterfly valve. The pressure of the seal is automatically generated by the pressure of the medium. (1) vacuum butterfly valve. Butterfly valve with lower working pressure than standard atmosphere.(2) low pressure butterfly valve. Butterfly valve with nominal pressure PN<1.6MPa.(3) medium pressure butterfly valve. Butterfly valve with nominal pressure PN 2.5--6.4MPa.(4) high pressure butterfly valve. Nominal pressure PN is 10. 0--80.0MPa butterfly valve.(5) ultra high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa. (1) high temperature butterfly valve. T>450 C butterfly valve
Q:What is the meaning of the D341*5-10 / 16ZB1 turbine butterfly valve flange said?
D341 is flanged connection center plate butterfly valve under pressure 1.0MPa-1.6MPa ZB1 rubber soft seal
Our valve is widely used in petroleum, chemicals, power, metallurgical, pharmaceutical and other industries.Our campany insists on surviving on high quality, creating with science and benefiting from management.

1. Manufacturer Overview

Location Shanghai,China
Year Established 2006
Annual Output Value Below US$1 Million
Main Markets Mid East;Western Europe;North America;Asia;Africa
Company Certifications ISO9001:2008 Certificate

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Shanghai
Export Percentage 51% - 60%
No.of Employees in Trade Department 20-50
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 8,350 square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range Average