MRV Relief Valves – Safety and Protection Solutions

Ball check valve

DIN-EN: DN 15 – 250 / PN 10 – 40
ASME: NPS 1“ – 4“ / class 150

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SPEC SHEET

CERTIFICATE

Design Features

Design Characteristics

temperature range up to 180°C
metal design
with heating jacket available
with sightglass

Condition:
After the check valve in flow direction the pipe-DN must correspond to the check valve-DN. Recommendation for vertical type: DELTA.
When vertically installed (=0°) resp. (up to 60° angle) ball ceck valves close automatically, because ball is guided in the centre of the bore. When horizontally installed (=90°) resp. (up to 30°) the valves close automatically if the back flow related water is 1,5 – 2,5 m/sec.

Materials

Standard
• Carbon Steel 1.0619 / ASTM A216 WCB
• Stainless steel 1.4408 / ASTM A351 CF8M
• Stainless steel 1.4308 / ASTM A351 CF8M
• Unalloyed stainless steel casting (low Temp.) 1.1138 / LCC/LCB / A352

Special materials
• other materials on request

Sightglass
• Borosilikat

Ball
• PTFE