Burker - Products

Introduction

Type

PTFE Wipers

-	Wiper Ring -type WA
-	Wiper Ring -type WB

PTFE Glide Seal Sets

-	Rod Seal Set -type RA
-	Piston Seal Set -type PB
-	Rod Seal Set -type RC
-	Rod Seal Set -type RL

PTFE Glide Seal Sets for O-ring fitting areas

-	Piston Seal Set -type PA
-	Piston Seal Set -type PB
-	Piston Seal Set -type PC
-	Piston Seal Set -type PD

PTFE Rotary Glide Seal Sets

-	Rotary Seal Set -type TR
-	Rotary Seal Set -type TP

Material

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Type > PTFE Glide Seal Sets for O-ring fitting areas > Piston Seal Set -type PB

Single seal is designed for uni-directional pressurization pistons in hydraulic applications but it is also appropriate for double-acting pistons in hydraulic cylinders if two sealing sets are arranged. Typical applications include control cylinders, servo-controlled systems, machine tools, and construction machinery.

Application Range

Pressure	400bar
Temperature	-60 ~ 200
Speed	4 m/s
Material	Bronze filled PTFE

Other materials are available for specified conditions

Guidelines for the Selection of Special Sizes

unit: mm

Cylinder Bore			Groove Bottom	Groove Width	Radius	O-ring code
Da			Di	L	R	O-ring code
8	-	16.9	Da - 4.9	2.2	0.3	A
17	-	26.9	Da -7.3	3.2	0.5	B
27	-	59.9	Da ¡V 10.7	4.2	0.8	C
60	-	199.9	Da ¡V 15.1	6.3	1.2	D
200	-	255.9	Da ¡V 20.5	8.1	1.5	E
256	-	500.0	Da ¡V 24.0	8.1	1.5	F

How to order special size

Profile type	PB
Rod diameter	Di=100 mm
Groove bottom	Di= 84.5 mm
Material	31 (Material)
Order code	PB-100-31-D