GYW Rod Seals

Function and Usage
GYW Rod Seal’s special sliding section design with scattered arrangement through the pumping path on the back of the dynamic seal , which provides perfect reverse pumping capacity in the entire pressure range. When it is dynamic, the sliding section also has a good friction and sealing characteristics of the micro structure, which not only improves the sealing capacity of the sealing ring, but also ensure the stability of the lubricating oil film on the sliding surface , reducing the dynamic friction.
 
Sliding Friction Characteristic
The friction between 2.5Mpa to 10Mpa on the standard Y type sealing ring will be increased, but the GYW Rod Seal’s special structure improved the pressure distribution on the piston rod, limited the increase of the friction, the sliding friction is more less than standard Y type seal during reciprocating motion.
 
Sealing Characteristic
The outer diameter and groove bottom diameter interference fit, the special shape of the two trimmed sealing lip mouth in a wide range of pressure, control the pressure distribution and hydraulic reverse pumping capacity to ensure good sealing performance.
 
Advantage
--In the series design, it is suitable to work together with the GS buffer seal as the second seal
--The friction resistance is less than the standard Y type seal
--Less heat than the standard Y type seal
--Good resistance to extrusion
--Good stability in the groove
 
Material
Standard usage
Material: polyurethane  Our Material Code: P902
 
Technical Data
Working Pressure: ≤40MPa
Speed：≤0.5m/s
Working Temperature：-35℃ to +110℃ 
Working Medium: Hydraulic oil, emulsion, water
 
Clearance

Working Pressure /MPa		5	10	20	30	40
Maximum Clearance   E	d＜60mm	0.40	0.30	0.20	0.15	0.10
	d≥60mm	0.50	0.40	0.30	0.20	0.15

 
Tips: Limit value of the above data, can not be used at the same time. The maximum working pressure depends on the type of material, the pressure, the temperature, the gap, and etc.. In actual usage, due to the mutual influence of working parameters, the maximum value setting is lower.
 
Installation
Groove: Both Closed and Opened (Open type groove is recommended for the limit diameter and limit cross section.)
In order to avoid the damage of the seals, during the installation, the seals should be leave away with the shape edge of the parts and tools. The sharp edges and burr in the installation area of the seal must be removed.
 
Example of the Order Part No. :
GYW Rod Seal
Series No.: GYW    Piston Rod Diameter: d=100mm 
Part Number: GYW100115P902
GYW: Series Number
100: Piston Rod Diameter
115: Groove Diameter
P902: Material Code
 

GYW Rod Seals
d	D	L	H	C	Part No.	Remarks
*16	24	6.3	5.7	4.5	GYW016024	○
*18	26	6.3	5.7	4.5	GYW018026	○
*20	28	6.3	5.7	4.5	GYW020028	○
*22	30	6.3	5.7	4.5	GYW022030	○
*25	33	6.3	5.7	4.5	GYW025033	○
*28	36	6.3	5.7	4.5	GYW028036	○
32	42	8	7.3	4.5	GYW032042	○
36	46	8	7.3	4.5	GYW036046	○
40	50	8	7.3	4.5	GYW040050	○
45	55	6.3	5.7	4.5	GYW045055	○
50	60	8	7.3	4.5	GYW050060	○
55	65	8	7.3	4.5	GYW055065	○
56	71	12.5	11.4	4.5	GYW056071	○
60	75	12.5	11.4	4.5	GYW060075	○
63	78	12.5	11.4	4.5	GYW063078	○
65	75	8	7.3	4.5	GYW065075	○
70	85	12.5	11.4	5.5	GYW070085	○
75	90	12.5	11.4	5.5	GYW075090	○
80	95	12.5	11.4	5.5	GYW080095	○
90	105	12.5	11.4	5.5	GYW090105	●
100	115	10	9	5.5	GYW100115	○
110	125	10	9	5.5	GYW110125	○
120	135	10	9	5.5	GYW120135	○
130	145	10	9	5.5	GYW130145A	●
130	145	13	12	5.5	GYW130145B	●
140	155	10	9	5.5	GYW140155	○
150	170	13	12	6	GYW150170	●
160	180	13	12	6	GYW160180	○
180	200	13	12	6	GYW180200	○
200	220	13	12	6	GYW200220	○
210	230	13	12	6	GYW210230	○
220	240	13	12	6	GYW220240	○
230	250	13	12	6	GYW230250	○
240	260	13	12	6	GYW240260	○
250	270	13	12	6	GYW250270	○
260	285	17	16	8	GYW260285	○
280	305	17	16	8	GYW280305	○
300	325	17	16	8	GYW300325	○
Notice: 1. “●” means the seal has existing mould; 2. “○” means no existing mould, but can provide the turning type seals; 3. “*” we suggest to adopt split type groove. If any special requirements of the materials and sizes, please contact with us.