Disc Check Valve Stainless Steel Spring Return DIN 3202 K4
TECHNICAL DESCRIPTION
Check valve, “Wafer” type. Used in compressed air or liquid systems, ensuring fluid movement in one direction.
Metal / metal seal, closing with auxiliary spring.
WORKING FLUID / MEDIUM
• Steam, thermal oil, fuels, lubricating oil and flammable hydraulic oils, petroleum, boiler feed water, condensate.
• Sea water.
EXECUTION
• Other materials upon request.
Our Stainless Steel Disc Check Valve, compliant with DIN 3202 K4 standards, is engineered for superior performance in demanding industrial applications. This spring return check valve ensures unidirectional flow control, preventing backflow and protecting sensitive equipment from damage. Constructed from high-grade stainless steel, it offers exceptional resistance to corrosion, high temperatures, and pressure variations, making it ideal for use in chemical processing, water treatment, oil and gas, and HVAC systems.Key features of this valve include a compact design for easy installation in tight spaces, a spring-assisted quick closure mechanism that minimizes water hammer effects, and a durable disc that provides a tight seal even under low-pressure conditions. The valve’s compliance with DIN 3202 K4 ensures international quality and interoperability, supporting seamless integration into existing pipelines and systems.Material: High-quality stainless steel for corrosion resistanceStandard: DIN 3202 K4 compliant for reliability and safetyType: Spring return disc check valve for efficient flow controlApplications: Suitable for liquids and gases in various industriesBenefits: Prevents backflow, reduces maintenance, and extends system lifespanIdeal for engineers and procurement specialists seeking dependable fluid handling solutions, this valve combines durability with precision engineering. Its robust construction minimizes downtime and operational costs, while the spring return feature enhances system efficiency. Trust this valve for critical applications where performance and compliance are non-negotiable.

Materials
| No. | DETAILS | MATERIALS |
|---|---|---|
| 1 | Body | stainless steel 1.4408 (AISI 316) |
| 2 | Valve | stainless steel 1.4408 (AISI 316) |
| 3 | Spring | stainless steel 1.4408 (AISI 316) |
| 4 | Cover | stainless steel 1.4408 (AISI 316) |
| 5 | Bolt | stainless steel 1.4301 (AISI 304) |
Features
| SPECIFICATION | |
|---|---|
| Standard | DIN |
| Joining | EN 1092-2 |
| Execution | straight |
| Conection | wafer |
| Operation | check valve |
| Actuation | spring-return |
| T max. °C | 200 °C |
| D | PN | L | D1 | D2 | L1 | Weight (kg) |
|---|---|---|---|---|---|---|
| 15 | 40 | 16 | 45 | 53 | 45 | 0.1 |
| 20 | 40 | 19 | 55 | 63 | 55 | 0.2 |
| 25 | 40 | 22 | 65 | 73 | 65 | 0.3 |
| 32 | 40 | 28 | 79 | 84 | 79 | 0.5 |
| 40 | 40 | 32 | 89 | 94 | 89 | 0.7 |
| 50 | 40 | 40 | 99 | 107 | 99 | 1.1 |
| 65 | 40 | 46 | 118 | 126 | 118 | 1.6 |
| 80 | 40 | 50 | 134 | 144 | 134 | 1.8 |
| 100 | 40 | 60 | 154 | 164 | 154 | 3.3 |









