|
Product Details:
Payment & Shipping Terms:
|
| Materia: | ASTM A536 65-45-12 | Port Size: | DN50-300 |
|---|---|---|---|
| Certificate: | UL/FM | Working Pressure: | 300psi |
| Design Standard: | AWWA C508 | Color: | Red Or Customized |
| High Light: | fire fighting gate valve,fire hydrant valve |
||
Introduction
The check valve is a valve that opening and closing member is a circular flap and acts on its own weight and medium pressure to block the flow of the medium. The flap motion mode is divided into lift type and swing type. The lift check valve is similar in construction to the shut-off valve and lacks only the valve stem that drives the flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the valve weight and its flow resistance, the valve is opened. Conversely, the valve closes when the media is reversed. The swing check valve has a valve that is inclined and rotatable about the shaft, and operates in a similar manner to the lift check valve. Check valves are often used as bottom valves for pumping devices to prevent backflow of water.
Size Chart
| SIZE ITEM |
2〃 | 2-1/2〃 | 3〃 | 4〃 | 5〃 | 6〃 | 8〃 | 10〃 | 12〃 |
| Dn | 51 | 64 | 80 | 100 | 126 | 152 | 204 | 254 | 302 |
| L | 203 | 216 | 241 | 292 | 330 | 356 | 495 | 622 | 698 |
| D | 152 | 178 | 191 | 229 | 254 | 279 | 343 | 406 | 483 |
| c | 120.5 | 139.5 | 152.5 | 190.5 | 216 | 241.5 | 298.5 | 362 | 432 |
| n-d | 4-ᵠ19 | 4-ᵠ19 | 4-ᵠ19 | 8-ᵠ19 | 8-ᵠ22 | 8-ᵠ22 | 8-ᵠ22 | 12-ᵠ25 | 12-ᵠ25 |
| H | 142 | 148 | 163.5 | 172 | 237 | 233 | 301 | 348 | 419 |
Technical Specification
Design Standard: AWWA C508
Norminal Pressure:300PSI
Working Temp: -20°C~110°C
Flange Standard: ANSI B16.1 Class 125
Both inside and outside of the body need Epoxy Resin Coating
The Shenzhen Winan Industrial Development Co., Ltd. was set up in 1995 with registered capital of 13,680,000RMB. We specialized in manufacturing fire-fighting Equipment for 20 years and we devote to provide clients with high quality & reliable products.
The company now has a large area of industrial workshops of more than 10000 square meters. We possess all kinds of advanced producing equipments, sophisticated manufacturing process and modernized testing center. Our products contain foam system, sprinkler system, fire monitors, fire hydrant, water mist system and valves.
Winan fire-fighting passed the ISO9001:2000 Quality Management System Certification in 2001 and we also passed the CCC Product Quality Certification of Ministry of Public Security fire products in 2004. Products manufactured by Winan fire-fighting were assessed as the “Chinese high-quality brand-name products" by Chinese Quality Management Juries. The company was assessed as the “AAA" honest enterprise by Ministry of Commerce Economic Academy and it is the member of Chinese Fire Protection Association.
Certification
FAQ:
1. Do you offer a free sample for your clients?
Yes, we can offer you a free sample.
2. What's the MOQ of your products?
MOQ is ONE pcs/set.
3. Are you a manufacturer with your own factory?
Yes, we are the manufacturer for more than 20 years.
4. What's your payment terms?
We accept T/T, L/C, Western Union, Paypal, etc.
5. How long is the delivery time?
Usually around 15 days after payment.
6. Can you accept OEM?
Yes, we do customized design for our clients.
Contact Person: Sales Manager
