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 Wipers > Wiper Ring -type WB

The function of wiper rings is to prevent dust, dirt and foreign material from immigrating into sealing rods and plungers. It features minimal break-out and dynamic friction to guarantee no stick-slip. PTFE compound enhances wear resistance to retain anticipated performance over a long period of time.

Application Range

Temperature	-60 ~ 120
Speed	4 m/s
Material	Bronze filled PTFE

Other materials are available for specified conditions

Guidelines for the Selection of Special Sizes

unit: mm

Rod Diameter			Groove Bottom	Groove Width	Groove Opening Dia.	Radius	O-ring code
Di			Da	L	Ds	R	O-ring code
6	-	11.9	Di + 4.8	3.7	Di + 2.7	0.4	A
12	-	64.9	Di + 6.8	5.0	Di + 3.5	0.7	B
65	-	250.9	Di + 8.8	6.0	Di + 4.0	1.0	C
251	-	420.9	Di + 12.2	8.4	Di + 4.5	1.2	D
421	-	650.0	Di + 16.0	11.0	Di + 5.2	1.5	E

How to order special size

Profile type	WB
Rod diameter	Di= 100 mm
Groove bottom	Da= 108.8 mm
Groove width	L= 6.0 mm
Material	31 (Material)
Order code	WB-100-31-C