Double flap check valve Stainless Steel Butterfly Check Valve
features:
| 1. The sealing valve is designed with multiple narrow bands, which greatly improves the reliability of the seal, achieves a complete seal, and realizes zero leakage. |
| 2. The structure is short in length, small in size, and light in weight, which brings great convenience to valve installation, handling, storage and pipeline layout, and can save a lot of materials and reduce cost. |
| 3. It can be installed horizontally or vertically with light weight. It is not necessary to provide a support for the valve. |
| 4. The water hammer pressure is small, the valve flap stroke is short, and there is a spring assisted closing, and the valve closing speed is fast. |
| 5. The opening pressure is very small, and the valve flap can be opened completely under a small pressure difference. |
| 6. The valve has an overall structure, simple and compact, the impact force is injected when the valve is closed, the water hammer pressure is small, the valve has a long life and high reliability. |
Notice:We are a factory with 16 years of experience, we believe that we have absolute advantages in price and quality.
| Standards & Specifications |
| Design & Manufacture |
ISO5211 EN593 API609 BS5155 EN1092 |
| Face to Face |
ISO5752 DIN558-1 API609 DIN3202 BS5155 |
| Inspection & Testing |
ISO5208 EN12266-1 API598 |
| Working Pressure |
PN10 PN16 |
| Working Temperature |
Cast Steel(-20~420ºC) |
| Stainless Steel(-40~500ºC) |
| Applicable medium |
Water, oils, Steam etc. |
| Application field |
Water supply and drainage, Water conservancy projects, Building project, Chemical industry, Petroleum industry and Gas plants etc . |
|
| Size & Material |
| Size Range |
DN50-600 |
| Flange connection size |
JIS |
5K/ 10K |
| DIN |
PN10/ PN16 |
| ANSI |
125LB/ 150LB |
| Main material |
Body |
Cast Steel/ Stainless Steel |
| Disc |
Cast Steel/ Stainless Steel |
| Spring |
Stainless Steel |
| Stem |
Carbon Steel 45/ Stainless Steel |
| Butterfly Check Valve drawings & Dimensions |
| ANSI |
150Lb |
300Lb |
600Lb |
| L |
D |
L |
D |
L |
D |
| 2 |
60 |
103 |
60 |
110 |
60 |
110 |
| 21/2 |
67 |
122 |
67 |
129 |
67 |
129 |
| 3 |
73 |
135 |
73 |
148 |
73 |
148 |
| 4 |
73 |
173 |
73 |
180 |
79 |
192 |
| 5 |
86 |
196 |
86 |
215 |
105 |
240 |
| 6 |
98 |
222 |
98 |
250 |
136 |
265 |
| 8 |
127 |
279 |
127 |
307 |
165 |
319 |
| 10 |
146 |
339 |
146 |
361 |
213 |
399 |
| 12 |
181 |
409 |
181 |
422 |
229 |
456 |
| 14 |
184 |
450 |
222 |
485 |
- |
- |
| 16 |
191 |
514 |
232 |
539 |
- |
- |
| 18 |
203 |
549 |
- |
- |
- |
- |
| 20 |
219 |
606 |
- |
- |
- |
- |
| 24 |
222 |
717 |
- |
- |
- |
- |
| Tianjin zhonghui Valve Industry Co.,Ltd is an integrity valve manufacturer, which has its own foundry, matching shop, and assembly line. As a result, we can control the overall quality by ourselves and guarantee delivery time. Our main products are gate valve, butterfly valve, check valve and control valve. Also, we can provide valve parts, including valve body, disc, seat, stem and spare parts. Our butterfly valve satisfies to the international standard like GB, ANSI/API, DIN as well as client's special specifications. The butterfly valves have met with warm reception based on excellent quality, good shipment and timely delivery time all over the world. We have been exported to Korea, Japan, Singapore, France and so on. We await your consultation and visit. |
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| Certifications: CE & ISO9001 |
FAQ
1.Can I have a sample order for valve?
A: Definitely Yes.We welcome sample order to test and check quality. Mixed samples are acceptable.
2. Can you OEM or ODM?
A:Yes, we have a great research & development team. The products can be made according to your request.Please send us high resolutionimages,your logo and other materials needed . We will send you finished files for confirmation.
3. Can you provide the relevant documentation and certificate?
A:Yes, we can provide you with the documentation and certificate you need ,IS09001:2000 international quality system certification,(CE)certification of the European Community, Det Norske Veritas (DNV) factory certification, Lloyd's Register (LR) factory certification, China Classification Society (CCS) quality system certification and the FM and UL certification of the US, Bureau Veritas(BV) ,American Bureau of Shipping(ABS) etc.Of course we can also provide you the test Report; Certificate of Material Analysis; Certificate of Origin; and other export documents which required.
4.How to proceed an order for valve?
A: Step1 let me know your requirements or application. Step 2 We quote according to your requirements or our suggestions. Step 3 Customer confirms the samples and places deposit for formal order. Step 4 We arrange the prodution.
5.What is your terms of delivery?
A: We accepte EXW,FOB,CIF,etc. You can choose the one which is the most convenient for you.
6.What's the package and how do you ship the goods?
A: Usually is wood pallet as your requst. We usually ship by sea.Airline shipping is also optional.
7. How to deal with after sales?
A: warranty time : 12 months from the shipment ; and we will be responsible for all the quality problems. Quality control : High quality mold./Raw materials control/Production process quality control/Final inspection/Water testing (no leaking).
8. What is the average lead time?
A:For samples, the delivery time is about 2-5 days. For mass production, the lead time is about 15-50 days after receiving the deposit payment. we can provide production schedule and related photos every two weeks. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products.If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate our production plan to your needs.
9. Why choose us?
A:We are a verified supplier and creditable company on Made-in-China, Genuine produces with excellent quality and competitive price, we are focusing on the long term relationship with customers, Genuine produces with excellent quality and competitive price. After-Services will be highly-satisfing.
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