QY-D Pneumatic Seal is made of a polyurethane material with an injection molding process. The thickened sealing lip is specifically designed for reciprocating cylinder rod sealing applications. Besides, a pneumatic seal’s sealing orientation can be internal as with a rod seal, external as with a piston, symmetrical, or axial. With internal pneumatic seals, a housing bore surrounds the seal and the sealing lip touches the shaft. In addition, this seal requires very little lubricant.

Standard Design			PU
Special (on request)			FKM

Specification		Groove size
		dh9/f8		dH10		L
12-20-8		12		20		9
14-22-8		14		22		9
16-24-8		16		24		9
18-26-8		18		26		9
20-28-8		20		28		9
22-30-8		22		30		9
25-33-8		25		33		9
28-36-8		28		36		9
30-38-8		30		38		9
32-40-8		32		40		9
36-44-8		36		44		9
40-48-8		40		48		9
45-53-8		45		53		9
50-60-12		50		60		13
50-62-12		50		62		13
56-66-12		56		66		13
56-68-12		56		68		13
60-70-12		60		70		13
60-72-12		60		72		13
63-73-12		63		73		13
63-75-12		63		75		13
70-80-12		70		80		13
70-82-12		70		82		13
80-90-12		80		90		13
80-92-12		80		92		13
90-100-12		90		100		13

Specification		Groove size
		dh9/f8	dH10	L
90-102-12		90	102	13
100-110-12		100	110	13
100-112-12		100	112	13
110-120-12		110	120	13
110-122-12		110	122	13
125-135-12		125	135	13
125-137-12		125	137	13
130-142-12		130	142	13
140-150-12		140	150	13
140-152-12		140	152	13
160-175-16		160	175	17
160-176-16		160	176	17
180-195-16		180	195	17
180-196-16		180	196	17
200-215-16		200	215	17
200-216-16		200	216	17
220-235-16		220	235	17
220-236-16		220	236	17
250-265-16		250	265	17
250-266-16		250	266	17
280-295-16		280	295	17
280-296-16		280	296	17
320-335-16		320	335	17
320-336-16		320	336	17
340-360-20		340	360	21
360-380-20		360	380	21

	Pressure [MPa]				Temperature [℃]				Sliding speed[m/s]		Medium
Standard	1.6				-35 ...+100				1		Air(Lubrication free, pressurized dry air)

● Suitable for demanding working conditions ● Long service life ● Low coefficient of friction ● High sealing performance ● Easy to disassemble and easy to test