Good Product Double Eccentric Butterfly Valve with PTFE Sealing-Aobv21

• Customization: Available
• Media: Water
• Driving Mode: Worm Gear
• Connection Form: Wafer
• Structure: Double-Eccentric Sealing
• Seal Form: Auto Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Standard: API609 En593 BS5155 En1092 ISO5211
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Certificates: CE(PED), ISO9001, Wras, Cu-Tr
• Body Materials: Cast Iron/Ductile Iron/Wcb/CF8m/CF8/Al-Bronze
• Disc Materials: Di/Nylon/1.4469/1.4529/Saf2205/2507/CF8/CF8m
• Seat Materials: NBR/EPDM/PTFE/Viton/Silicone etc
• Coating: Fbe Epoxy Coated
• Flange Standards: Pn6/10/16/25/21/150lb/JIS5K/10K/As2129 Table D/E/F
• Face to Face Standards: En558;API609;DIN3202;ISO5752;BS5155;Awwa
• Transport Package: Bubble Bags and Ply Wooden Cases
• Specification: DN50-DN2400
• Trademark: AVANNTO/OEM
• Origin: Beijing China
• HS Code: 8481804090
• Production Capacity: 1000000

Product Description

A double offset wafer or lug type valve suitable for high pressure and high temperature applications.
Highlight:
·All AVANNTO valves are pressure tested to 110% of rated pressure to assure bubble tight shutoff.
·All AVANNTO butterfly valves are pin-less design
·Chemical resistant, weather resistant, abrasion and impact resistant coating
·Internal disc-to-stem connection
·ISO 5211 international compatibility
·Direct mount all AVANNTO actuators including handles, gear operators, pneumatic and electric actuators
Specifications:
Body Materials: Ductile Iron, Carbon Steel, Stainless Steel,Nickel Aluminum Bronze
Disk Materials: Stainless Steel, Nickel Aluminum Bronze
Stem Materials: Stainless Steel, Monel
Seat Materials: RTFE with Resilient Energizer,
Applications:  Metallurgy, Power Generation, Chemical Process, Oil & Gas, Pulp & Paper, Bulk Solids, Mining, High Pressure, High Temperature, Critical Service
Material availability depends on valve size & series. Other materials are available. Please consult to us or your local AVANNTO representative for your specific condition.
Nominal diameter:
DN 50 - DN 600
Face-to-face:
EN 558 Series 20
ISO 5752 Series 20
API 609 Table 1
Flange accommodation:
EN 1092 PN 10/16/25/40 (up to DN 150)
EN 1092 PN 10/16/25 (DN 200 - DN 600)
ASME Class 150
Flange Surface Design:
EN 1092 Form A /B
ASME RF, FF
Top flange:
EN ISO 5211
Tightness check:
EN 12266 (Leakage rate A)
ISO 5208, Category 3
Working standard:
EN 593
Temperature range:
-40 °C to + 260°C (depending on pressure, medium and material)
Max. Operating pressure:
max. 40 bar
Double Offset Stem and Disc Design
The double offset design of the AVANNTO assures reduced seat wear and bi-directional, zero leakage shutoff throughout the full pressure range. At the initial point of disc opening, the offset disc produces a cam-like action, pulling the disc from the seat. This cam-like action reduces seat wear and eliminates seat deformation when the disc is in the open position. When open, the disc does not contact the seat, therefore seat service life is extended and operating torques are reduced. As the valve closes, the cam-like action converts the rotary motion of the disc to a linear type motion to effectively push the disc onto the seat. The wiping action of the disc against the seat prevents undesirable material build-up from slurries or suspended solids.



About Avannto

Company Goal : OEM service for world-famous valve brands.

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FAQ

Dear Customers, the following questions are frequently asked by our customers, we put them as following, if you still have any questions haven't been answered following, you can call our 24 hours telephone No. to get your quick answer.

1. What are your office hours?
You can reach us from 9:00 A. M. to 9:00 P. M. GTM+8, Monday to Friday, except weekends.

During our off time, you can call our 24hours 

2. How soon can I get a price quote?
Once we know the Size, material, drive method we can provide you with one competitive price quote within 24 hours.

3. Can I get a sample?
Yes, the samples are free for you. But you need to offer one courier account NO. to afford the fee for samples shipping. The samples' sending usually takes 5-7days.

4. How can my order produced by my brand?
Yes, you can. Pls offer your brand or LOGO design to us(.AI or.PSD format), then we could produce all goods with your brand or LOGO.

5. What's your delivery time?
Except our legal holiday, it will take 2-4 weeks for us to finish all your orders' production.

6. Is there a minimum order requirement?
Due to the high machine setup cost and shipping freight, our minimum order quantity is 5pcs

7. Do you have butterfly valve related accessories?
Yes, we have. We have accessories: pneumatic actuators, electric actuators, limit switches, solenoid valves, etc.

8. Will you match competitors' prices?
If you find a lower price elsewhere for the exact same specification, we will meet or beat that price as long as it is a little higher than our cost price.

9. What are your terms of delivery?
We accept FOB, CIF etc. You can choose the one which is the most convenient or cost effective for you.

10. Where can I meet you by face to face?
A,Our headquarter is located in BEIJING, if you travel to BEIJING, you can visit our office at any time, we could pick you up from your location in BEIJING and TIANJIN.
B,Our factories are located in BEIJING and DALIAN, welcome to visit our factory before you cooperate with us.
C,We will attend China Spring Canton Fair and China Autumn Canton Fair every year, welcome to visit our booth at that time.

11. How can I be your sole agent in our country?
Welcome you to become our sole agent firstly. According to different countries' demand, if your yearly purchase quantity from us can reach 10000 to 30000 pcs you could be our sole agent in your country. If you wanna know exact quantity requirement for each country, pls feel free to contact us at any time.