Lofilm^®

• Highly versatile seal that reduces stockholding requirements
• Excellent performance at high and low pressures
• No axial compression - no in-service adjustments needed
• Very low leakage rate reduces clean-up and top-up requirements
• Available in split form for major downtime savings
• Can be supplied with Self-aligning gland ring for use with heavily worn rams and other arduous duties

With its 'dry' running characteristics, Lofilm is the high performance seal most suitable for virtually all types of hydraulic press (main rams and drawback rams), hydraulic cylinder glands and single acting piston heads, and hydraulic valves.

• Maximum operating pressure: 42 MPa (6092 psi). Modified design and materials can considerably extend this capability.
• Temperature range (standard materials): -20°C to +100°C (-4°F to +212°F) up to 250mm (9.84 in) OD, or to +120°C (+248°F) above 250mm (9.84 in) OD
• Maximum temperature (special materials): +200°C (+392°F)
• Maximum surface speed: 0.5 m/s (98.4 fpm). Please contact us for use at higher speeds.

Up to and including 250mm (9.84 in) OD

Gland ring/female adapter

• Standard material: high performance acetal copolymer
• Special materials: cotton fabric proofed with natural rubber (NR), hydrogenated nitrile (HNBR), butyl (IIR), or fluorocarbon (FKM)

V-shape intermediate rings

• Standard material: cotton fabric proofed with blend of synthetic rubbers
• Special materials: cotton fabric proofed with natural rubber (NR), hydrogenated nitrile (HNBR), butyl (IIR), or fluorocarbon (FKM). Also solid rubber or PTFE.

Header ring/male adapter

• Standard material: abrasion resistant medium nitrile (NBR) rubber
• Special materials: ethylene propylene (EPDM), or fluorocarbon (FKM) rubber for use with certain phosphate ester fluids

Above 250mm (9.84 in) OD

Gland ring/female adapter

• Standard material: cotton fabric proofed with with a blend of synthetic rubbers
• Special materials: cotton fabric proofed with natural rubber (NR), hydrogenated nitrile (HNBR), butyl (IIR), or fluorocarbon (FKM)

V-shape intermediate rings

• Standard & Special materials: as for sizes up to and including 250mm (9.84 in)

Header ring/male adapter

• Standard & Special materials: as for sizes up to and including 250mm (9.84 in)

Standard materials

• Suitable for use with most mineral based hydraulic fluids and most fire-resistant fluids of the water/oil or water/glycol types at temperatures up to +100°C (+212°F). They are also resistant to air, water and most lubricating oils and greases. Where fire-resistant fluids are used, it is essential to advise our Technical Support Team of the type and designation due to the effects that can occur with different grades.

Special materials

• Considerably extend the range of application in terms of temperature, fluid compatibility and abrasion resistance. Please contact us for further information.

• Available in radial sections from 4mm (0.16 in) upwards. Endless packing sets in standard materials to suit housings to BS ISO 5597 - Long axial length series are readily available up to 2.2m (87 in) OD. Inch sizes and split packing sets are also available. Other sizes are manufactured to order, but tooling charges may be incurred.
• Fitting instruction are supplied with every seal