Parker CQ piston seal combination
   CQ is a double-acting piston seal for medium and heavy-duty hydraulic applications. Its unique design, the PTFE slip ring has a star-shaped ring to prevent leakage. PTFE slip ring is a stable rectangle with two O-rings. CQ walking devices generally used in hydraulic, cranes, standard cylinders and accumulators. Parker CQ can replace similar design non Parker seals. CQ or without O-ring ring and star when ordering.

Technical Parameters:

Standard materials: PTFE052 filling 40% copper

Temperature range: -130 ° C to + 260 ° C

Pressure range: 40MPA (60MPA)

Surface speed: 3 m / s

O-ring / star-ring material

1.70A nitrile rubber -35 ° C to + 110 ° C (standard material)

2.75A Viton -25 ° C to + 200 ° C

* Alternative materials: For different applications require different alternative materials, we can supply fluorine rubber, ethylene propylene rubber.

Pressure range is the maximum pressure in the absence of lower wear ring can bear, and material type, temperature, space related.

Note: There is also equipped with a single O-ring (see 98) or in the form of a rectangular ring.