M-ring seal Type MB

elastomerNBRPTFE

Product description
The M-ring Type MB is an axial static sealing element designed for DIN 11851-style stainless steel fittings used in the food industry. It features an additional inner collar to improve sealing in pipe screw joints. Available in common elastomer and PTFE materials: NBR, FKM, EPDM and PTFE.

Compliance
Compounds comply with FDA 21 CFR 177.2600 or 21 CFR 177.1550. Additional compounds available on request, including formulations compliant with BfR recommendation XXI, USP Class VI and 3-A Sanitary Standards.

Fields of application

• static sealing
• dynamic sealing
• single-acting systems
• double-acting systems
• linear motion
• rotating (inactive)
• oscillating motion

Main use
Valves and stainless steel fittings in the food and beverage industry

Materials
Elastomers (NBR, FKM, EPDM) and PTFE

Technical values
Materials (variants): NBR, FKM, EPDM, PTFE
Pressure: up to 16 MPa
Temperature (material dependent): NBR: -30°C / +80°C; FKM: -20°C / +200°C; EPDM: -40°C / +130°C; PTFE: -200°C / +260°C
Speed: not applicable

Technical specifications

• Type: axial static sealing element for stainless steel fittings (DIN 11851 style) with inner collar
• Typical materials: NBR, FKM, EPDM, PTFE
• Pressure rating: up to 16 MPa (material dependent)
• Temperature ranges (material dependent): NBR -30°C / +80°C; FKM -20°C / +200°C; EPDM -40°C / +130°C; PTFE -200°C / +260°C
• Fields of application: static, dynamic, single acting, double acting, linear; rotating shown as inactive; oscillating
• Regulatory compliance examples: FDA 21 CFR 177.2600 and 21 CFR 177.1550; further options: BfR recommendation XXI, USP Class VI, 3-A Sanitary Standards
• Note: Maximum values for temperature, speed and pressure are not simultaneously applicable; values vary depending on material and media