ATR

Cross-section	Profile designation	Application	Operating pressure < MPa	Temperature °C (depending on material)	Glide speed < m/s	Design information	Product details
	ATR	Hydraulics Pneumatics	-	-30 to 200 -30 bis 180	4 4

ATR
The wiper ring profile ATR is designed to prevent contamination ingress while the piston rod is moving. Thereby, it prevents the development of scratches at the running surface and extends the working life of the seals. This profile combines a dynamic used PTFE ring with a static O-ring as a pretension element. Conditional on the production, this profile is available short-dated up to sizes of 3000 mm. No specific action e.g. ring nuts and retaining plates or special fits are necessary for the installation. Intermediate sizes or inch dimensions can be produced short-dated, if required.

APPLICATION RANGE
Designed for axially moved rods at hydraulic and pneumatic piston rods. Due to the excellent slide attributes of the dynamic used PTFE ring, it is suitable especially well for short strokes with high frequencies and high surface speeds. The low abrasion guarantees a long service life.

MATERIAL
Standard compound wiper ring: PT052
Standard compound O-ring: NBR elastomer, 70 Shore A
Working temperature: - 40 °C to + 200 °C (depending on the O-ring)
Surface speed: ≤ 4 m/s

MOUNTING INSTRUCTIONS
The wiper ring profile ATR necessitates a divided fitting area at diameters < 40 mm. A closed fitting area can be used at larger diameters. A following calibration is recommended.

ORDER EXAMPLE
ATR 0500 PTO52 58N1 B (50 x 56,8 x 5)
ATR = Profile
0500 = Rod Ø x 10
PTO52 = Compound
58N1 = Serial number, Last two digits: O-ring code
B = Cross section

For special cases of application (high temperatures, speed, specific pressure, use in water, HFA-, HFB-fluids etc.) please get in contact with our consultancy service.

HOUSING DIMENSIONS

O-RING DESIGNATIONS IN PTFE-SEALS