Check Valve Bronze Spring Return DIN PN 16
TECHNICAL DESCRIPTION
Bronze check valve with spring. Sealing – metal / metal and threaded connection. Horizontal and vertical installation possible.
WORKING FLUID / MEDIUM
• Steam, thermal oil, fuels, lubricating oil and flammable hydraulic oils, air, gas, petroleum, non-flammable hydraulic fluids, boiler feed water, condensate.
• Sea water.
EXECUTION
• Other materials upon request.
Dimensions: DN 15 – 150
The Bronze Spring Return Check Valve DIN PN 16 is a high-performance industrial component designed to prevent backflow in piping systems. Constructed from durable bronze, this valve ensures corrosion resistance and longevity in demanding environments. It adheres to DIN standards and is rated for a pressure of PN 16, making it suitable for a wide range of applications, including water supply, heating systems, and industrial processing. The spring-assisted return mechanism guarantees swift and reliable sealing, minimizing pressure drop and enhancing system efficiency.This check valve features a compact and robust design, engineered for easy installation and maintenance. Its internal spring mechanism allows for operation in any orientation—horizontal, vertical, or angled—providing flexibility in system layout. The valve is ideal for use with liquids and gases where unidirectional flow is critical, preventing damage to pumps and other equipment. Key attributes include:Material: High-quality bronze for excellent corrosion resistancePressure Rating: PN 16 (16 bar)Standard: DIN compliant for interoperabilitySpring Return: Ensures immediate closure and leak preventionConnection Type: Threaded or flanged as per DIN specificationsApplications span various sectors, such as plumbing, HVAC, chemical processing, and manufacturing. Its reliability and compliance with international standards make it a preferred choice for engineers and procurement specialists seeking to optimize fluid control systems. Ensure system integrity and safety by integrating this valve into your infrastructure, benefiting from its low maintenance requirements and consistent performance under pressure.

Materials
| No. | DETAILS | DIMENSIONS | MATERIALS |
|---|---|---|---|
| 1 | Body | bronze CC491K (RG5) | |
| 2 | Valve | DN 10-50 | Bronze CC493K (RG7) |
| 2 | Valve | DN 65-80 | bronze CC491K (RG5) |
| 3 | Spring | stainless steel 1.4571 (AISI316Ti) | |
| 4 | Garnish | Teflon/PTFE | |
| 5 | Lid | DN 10-32 | brass CW710R (SoMs59) |
| 5 | Lid | DN 40-80 | bronze CC491K (RG5) |
Features
| SPECIFICATION | |
|---|---|
| Standard | DIN |
| Construction length | EN 558, series 1 |
| Lid connection | threaded |
| Execution | straight |
| Joining | flanged |
| Operation | Self closing |
| T max. °C | 180 °C |
| DN | PN | Flanges/G | L | H | Weight (kg) |
|---|---|---|---|---|---|
| 10 | 16 | G 3/8" | 60 | 40 | 0.3 |
| 15 | 16 | G 1/2" | 65 | 40 | 0.1 |
| 20 | 16 | G 3/4" | 75 | 50 | 0.5 |
| 25 | 16 | G1" | 90 | 50 | 0.9 |
| 32 | 16 | G 1 1/4" | 105 | 60 | 1.3 |
| 40 | 16 | G 1 1/2" | 120 | 65 | 1.9 |
| 50 | 16 | G 2" | 145 | 75 | 3 |
| 65 | 16 | G 2 1/2" | 170 | 90 | 5.8 |
| 80 | 16 | G 3" | 200 | 100 | 7.3 |










