Double Door Wafer Type Butterfly Check Valve

• Customization: Available
• Media: Acid
• Temperature: High Temperature
• Material: Stainless Steel
• Connection Form: Wafer, Flanged
• Structure: Swing
• Pressure: High Temperature
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: "0"Leakage
• Flow Direction: Reversing
• Standard: DIN3202-K4
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Certificates: CE(PED), ISO9001, Wras, Cu-Tr
• Body Materials: 1.4469/1.4529/Saf2205/2507/CF8/CF8m
• Disc Materials: 1.4469/1.4529/Saf2205/2507/CF8/CF8m
• Seat Materials: NBR/EPDM/Viton/FKM
• Coating: Fbe Epoxy Coated
• Flange Standards: Pn6/10/16/25/21/150lb/JIS5K/10K/As2129 Table D/E/F
• Face to Face Standards: DIN3202-K4
• Transport Package: Bubble Bags and Ply Wooden Cases
• Specification: DN32-DN600
• Trademark: AVANNTO/OEM
• Origin: Beijing China
• HS Code: 8481300000
• Production Capacity: 100, 000, 000 Sets/Year

Product Description

Wafer type Swing check valve, for mounting directly between flanges according to DIN. Maintenance not required. For liquids and gases in the industrial range, general services, water treatment. Not suitable for media with solid components.
Highlight:
Simple construction
Specifications:
Body Materials: Carbon steel,Stainless Steel
Disk Materials: Carbon steel,Stainless Steel
Stem Materials: Stainless Steel
Spring Materials: Stainless Steel
Seat Materials: BUNA-N(NBR& Nitrile), EPDM,FKM
Applications:  Potable Water, Wastewater, HVAC, Irrigation, Metallurgy, Power Generation, Marine, Oil & Gas, Mining
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 32 - DN 500 
Flange accommodation:
EN 1092 PN 16 DN32-DN250
EN 1092 PN 10 DN300-DN500
ASME Class 150
Flange Surface Design:
EN 1092 Form A /B
ASME RF, FF
Tightness check:
EN 12266 (Leakage rate A)
ISO 5208, Category 3
Temperature range:
-10 °C to + 130°C (depending on pressure, medium and material)
Max. Operating pressure:
max. 16 bar



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.