U-ring seal Type UZ

staticelastomerNBR

Description
The UZ bonded U-ring seal consists of a metallic ring with a molded trapezoidal elastomer sealing lip and a centering embossment to ensure correct automatic assembly. Tightening the screw compresses the elastomeric lip between two flat mating surfaces; elastomer compression is limited by the metal ring. System pressure further increases the sealing effect. Standard elastomer options include NBR, EPDM and FKM. Metal options include standard steel (1.0330 galvanised) and stainless steel (1.4301).

Fields of application

• static
• dynamic
• single acting
• double acting
• linear
• rotating
• oscillating

Main use
sealing element for connection components (bolted/screwed joints, fittings)

Materials
elastomers and metal (standard elastomers: NBR, EPDM, FKM; steel grades: standard steel 1.0330 galvanised, stainless steel 1.4301)

Technical values

• Materials (available variants): NBR, FKM, EPDM
• Pressure (general): up to 100 MPa (installed into a countersink); up to 40 MPa (installed into a countersink at < Ø40mm); up to 25 MPa (installed into a countersink at > Ø40mm)
• Temperature (material dependent): NBR: -30°C / +80°C; FKM: -20°C / +200°C; EPDM: -40°C / +130°C
• Speed: not specified

Characteristics / technical specifications

• Product type: bonded U-ring (U-ring Type UZ)
• Construction: metallic ring with molded trapezoidal elastomer seal and centering embossment
• Assembly function: screw tightening compresses the elastomeric sealing lip between two flat surfaces; elastomer compression limited by metal ring; sealing improves under system pressure
• Main use: sealing of connection elements (bolted/screwed joints)
• Available elastomers: NBR, FKM, EPDM
• Available metal/steel grades: standard steel (1.0330 galvanised), stainless steel (1.4301)
• Pressure ratings: up to 100 MPa (countersink installation); up to 40 MPa (countersink, < Ø40mm); up to 25 MPa (countersink, > Ø40mm)
• Temperature ranges (material dependent): NBR -30°C / +80°C; FKM -20°C / +200°C; EPDM -40°C / +130°C
• Fields of application: static, dynamic, single acting, double acting, linear, rotating, oscillating