Cast Iron Wafer Type Butterfly Check Valve Swing

• Customization: Available
• Media: Water
• Temperature: Ordinary Temperature
• Model NO.: CA
• Material: Cast Iron
• Connection Form: Flange
• Pressure: Ordinary Temperature
• Standard: DIN
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN50~DN300
• Trademark: Cafire
• Origin: China
• Production Capacity: 50000/Month

Product Description

 

 

DN	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	140	150	170	180	190	200	210	230	250	270	290	310	330	350	390	430	470
D	150	165	185	200	220	250	285	340	405	460	520	580	640	715	840	928	1025
D1	110	125	145	160	180	210	240	295	355	410	470	525	585	650	770	840	950
D2	88	102	122	138	158	188	212	268	320	378	438	490	548	610	725	794	901
b	17	17	17	17	19	19	19	22	23	26	28	30	30	32	36	40	44
n-d	4-18	4-18	4-18	8-18	8-18	8-18	8-22	12-22	12-28	12-28	16-26	16-30	20-30	20-34	20-36	20-37	24-40
H	200	215	245	285	320	360	415	480	585	670	980	1144	1250	1366	1450	1300	1457
C	160	160	180	200	200	250	250	280	320	350	350	500	500	500	650	700	750

Photos:







Firefighting silent check valves are essential components in fire safety systems, which help to control the flow of water while preventing the backflow of contaminated water. The working principle of the valve is quite simple and effective.
The valve features a metal or plastic body housing an internal disc. This disc is connected to a spring or other tension mechanism, which holds it in place until water flows through the valve. As water flows through the valve, it pushes the disc open, allowing water to pass through. Once the flow of water stops, the spring or tension mechanism acts to close the valve and prevent water from flowing back through the system.
One key feature of firefighting silent check valves is their ability to reduce noise levels during operation. This is achieved by incorporating a specifically designed internal structure into the valve body. The structure works to redirect flowing water and reduce turbulence, helping to minimize noise levels during operation.
Another significant benefit of the silent check valve is its ability to prevent water hammer. Water hammer is a common issue in firefighting systems caused by the sudden interruption of water flow. Water hammer creates high-pressure waves that can damage system components and create noise. The silent check valve helps to reduce the possibility of water hammer by preventing backflow and sudden water flow changes.
Finally, firefighting silent check valves are made with high-quality materials to ensure their long-term performance in firefighting applications. The valves are typically designed to withstand high-pressure systems, ensuring they can maintain their function even in harsh conditions.
Overall, firefighting silent check valves play a crucial role in ensuring the effectiveness of firefighting systems. Their simple yet effective working principle, noise reduction feature, prevention of water hammer, and high-quality construction make them an essential component in firefighting applications.