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SingaporeIt is really a pleasure cooperation. You are fast understanding and knowlegeable, also your Check valves worked well. We believe that we will have a great chance to cooperate more. -
ItalyTks for your consisent support for more than 10 years. Your diligence, professional technical support and rich experience in the pipeline projects has biggly help the business between us. Together we will win more and more tenders in the future. Best Regards to you and your team, and finally Come on DEYE Piping team! -
EgyptYou are honnesty and very reliable parnter, tks for your support on the technical data sheets and addtional works to fast the delivery time. Your professional answers are always impressed. also Your products are beautiful. We apprecite all the offorts you have done for the years business. -
UAEYou are Excellent, especially the quanlity control step by step, We've got all the photos and videos we want. and the documents we received all meet the request. Our boss is very Satisfied and he said he will give you more orders. We like your professional and fast jobs. -
PeruThe mould you opened for the valve are good, the new types of butterfly valves is popular. It will biggly increase the business between us. Tks for your suggestions on the flange holes. The valves are in good finishing and well packaged when we received them. Thank you, my friend. -
KazakhstanThe end user is safisfied with your A234WPB fittings and A105 Flanges, the have finished the welding at present, all works well.Tks for your professional suggestions and the operation manual. We also won the 2nd Phase job, we have sent to you this morning, Pls confirm all the specifications to proceed.
PN10 PN16 PN25 Water Valve Ductile Iron GG25 GGG40 GGG50 Lug Butterfly Valves
| Place of Origin | CHINA |
|---|---|
| Brand Name | DEYE |
| Certification | ISO9001:2015 PED |
| Model Number | DY-BFV-1005 |
| Document | Product Brochure PDF |
| Minimum Order Quantity | 10PCS |
| Price | USD2-USD20000 each |
| Packaging Details | carton box+ ply wooden cases or carton+ Pallets |
| Delivery Time | 20 days for usual order, 7 days for stocked items |
| Payment Terms | T/T, L/C, D/P |
| Supply Ability | 1000pcs one month |
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xProduct Details
| Highlight | PN25 Water Valve,PN16 Water Valve,GGG50 lug butterfly valves |
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Product Description
Ductile Iron GG25 GGG40 GGG50 Lug Butterfly Valves For PN10 PN16 PN25
Series No. BFV-1005
A butterfly valve, also known as a flap valve, is a simple structure regulating valve that can be used for switch control of low-pressure pipeline media. The butterfly valve refers to a valve with a disc as the closing component (valve disc or butterfly plate) that rotates around the valve axis to achieve opening and closing.
Butterfly Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. Mainly used for cutting and throttling on pipelines. The butterfly valve opening and closing part is a disc shaped butterfly plate that rotates around its own axis within the valve body to achieve the purpose of opening, closing or adjusting.
Quick Detail
Design standard: API 609.
Body material: DUCTILE IRON ASTM A536
Nominal diameter: DN40 to DN1200 (1-1/2”—48”.)
Pressure: CL150 (PN20) 150PSI 225PSI, 285PSI, PN6/PN10/PN16, JI5K/JIS10K
End connection: Wafer, LUG
Face to face:EN558 Series 20
Top flange ISO5211.
Bi-direction Seal, Renewable seat Design
Mode of operation: Lever
Test and inspection: API 598. EN1226
Epoxy Powder Coated inside and outside Min. 250 microns.
Product Range
Available Body Material: Ductile Iron , Carbon steel, Stainless steel, Alloy steel.
Available Disc Material: Ductile iron, SS304, SS316, Bronze, Duplex SS2205/2507, UNS31803/UNS32750
Optional Seat: EPDM, NBR, PTFE, Teflon. Neoprene
Optional End connection: Wafer, Lug, Flanged.
Optional Body Design: Eccentric or Concentric centerline
Face to face: EN558 Series 13/14, long type or short type
Normal diameter: 4"~96" (DN100~DN2400).
Pressure range: 150lbs (PN10~PN25).
Available Operation: Gearbox, Electric, pneumatic actuator
Working temperature: -46℃~+200℃.
Performance:
- Ductile iron solid valve body, QT450-10 ductile iron valve body, tensile strength 450Mpa Min.
- Highly elastic seat rubber
The rubber content of the valve seat rubber is 50%, and the simulation of opening and closing experiments is more than 10,000 times, without leakage
- Aksu epoxy plastic powder
The valve body is sprayed with Akzo's epoxy resin powder Min. 250microns. with strong adhesion
- Anti-blowing valve shaft design
The valve shaft of of the butterfly valve adopts the anti-blowing structure, which has excellent safety performance.
Install of the butterfly valve
Figure 1
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Incorrect Disc opened beyond valve body face. Pipe flanges not spread sufficiently.
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Disc positioned in the almost closed position. Pipe flange spread allows sufficient room for valve. |
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Figure 2 Centering and Flanging of Valve
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Disc in closed position Gaskets installed between valve and mating flanges |
Correct No flange gaskets used. Disc in the “almost closed” position. |
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Figure 3.Flange Bolt Tightening Sequence
Figure 4-Final Valve Alignment and Tightening of Flange Bolts
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Incorrect Pipe Flanges mis-aligned uneven torque applied to bolting. |
Correct Piping aligned. Thread engagement even on both sides of valve. |
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Application:
widely used in gas, oil, water, chemical engineering and other related industries, also in cooling water systems of thermal power stations
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