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 PD

A PTFE sealing ring energized by an O-ring is designed for bi-directional pressurization, pneumatic pistons, such as in control cylinders, in quick acting cylinders, and servo-assisted equipment. It is dedicated for assembly on an integral piston to serve as a high extrusion resistance but very low sliding friction sealing in pneumatic applications.

Application Range

Pressure	16 bar
Temperature	-60 ~ 200
Speed	4 m/s
Material	Standard Material

Other materials are available for specified conditions

Guidelines for the Selection of Special Sizes

unit: mm

Diameter			Groove Bottom	Groove Width	Radius	O-ring code
Da			Di	L	R	O-ring code
7	-	15.9	Da - 4.0	2.00	0.3	A
16	-	27.9	Da - 6. 0	2.85	0.3	B
28	-	49.9	Da ¡V 7.5	3.80	0.5	C
50	-	129.9	Da - 12.5	5.60	0.5	D
130	-	199.9	Da - 15.0	7.55	0.5	E
200		250.0	Da - 18.0	7.55	0.5	F

How to order special size

Profile type	PD
Rod diameter	Di=100 mm
Groove bottom	Di= 87.5 mm
Material	21 (Material)
Order code	PD-100-21-D