Product information PTFE Chevron Seals Special Sealing Vibration Control

Simrit®, Your Global Technology Specialist for Seals and Vibration Control Simrit, Your Global Technology Specialist for Seals and Vibration Control offers you a complete service package. A unique range of products and services guarantees you numerous advantages over the competition. Simrit acts as a partner to general industry. Its position as a market leader is achieved through continuous research, development and manufacture. We have the world’s widest range of seals and vibration control products, and can offer you solutions based on the demands of state-of-the-art-technology, solutions which...

Multi-part high-resistance sealing sets for translatory applications Chevron sealing sets are multi-part sealing sets, primarily designed for translatory movements. They generally consist of a pressure ring, a support ring and several chevron seals. The profile design and number of parts as well as the combination/selection of materials are determined according to the operating conditions. Special high-pressure chevron sealing sets are available for chemical, thermal and mechanical loads occurring simultaneously. and shut-off valves pumps ■ metering systems ■ agitators ■ hydraulic cylinders ■...

Recommended number of chevron seals in sets DM 9403 Pressure levels The temperature range specified for pure PTFE can be greatly increased by including components made of PTFE compound. Linear velocities Continuous operation Intermittent operation With lengthy duty cycles, jerky operation or other difficult operating conditions the recommended values given should not be used to the full. Operating temperatures of –200° to 260°C are possible but should be seen in relation to pressure and linear velocity. The media also has an influence on the permissible dynamic limit parameters. Please consult...

Surface quality Peak-to-valley heights Mean roughness index Ra Contact area Installation space Outside diameter Installation space front faces * minimum requirement Installation space tolerances Plunger diameter Housing diameter Operating limits Pressure/Temperature/Speed Pressure Temperature Linear velocity – Continuous operation – Intermittent operation Combined sealing sets 30 MPa –200 to 260 °C 0.5 m/s 1.2 m/s * With vacuum or pressure reversal to 0.2 MPa, housing closed Fitting instructions Pretensioning with spring elements: PTFE chevron seals show a relatively high level of thermal expansion...

PTFE/fabric-chevron sealing sets (compression-moulded) Operating limits Mixed chevron sealing sets made of PTFE and PTFE-impregnated plastic fabric offer much greater stability under compressive load with lower thermal expansion than chevron sealing sets made of pure PTFE or PTFE compound. Depending on the application and the operating conditions PTFE-impregnated plastic fabric chevron seals can be installed on their own or combined with chevron seals made of pure PTFE or PTFE compound. Here it should be borne in mind that combined chevron sealing sets offer a greater sealing effect due to the...

Installation space and fitting instructions PTFE-impregnated plastic fabric chevron seals and combined PTFE sealing sets are provided for adjustable installation spaces. These sealing sets are generally used without additional spring elements. For adjustable installation spaces an extension of 2.5 % is recommended and an adjustment level of 7.5 % of the L-dimension. Profile width B Installation angle a

From the standard version to the individual solution The standard models described above cover the requirements made on seals in the case of most applications. There are other applications which call for a customised solution. Product optimisation may be necessary with one or more operating parameters. Examples of requirements sealing in pumps, spindles and valves ■ longitudinal movement of rod, optionally with simultaneous rotation ■ sealing effect according to maximum requirement ■ low control forces required Solution by including a Univerdit chevron seal Benefits from development of seals...

Product information PTFE Chevron Seals Simrit®, Your Global Technology Specialist for Seals and Vibration Control Simrit Services Your Benefits Constant innovations Technological edge Uniquely wide range of products Strong product brands Specialised technological expertise Unique materials expertise Longer unit service life A wide range of value added services Competitive advantages, efficiency and lower costs PTFE Chevron Seals for high level applications Your Benefits Broad-band resistance to chemicals High thermal stability Pressure-resistant Vibration Control Special Sealing Products: Bellows,...