Service Range of Packings

Technical information
Service range, performance data and other figures are best indications for selections of packings while do not carry any functional guarantee.

Hydraulic Seals

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Part Name Standard Material Operating fluid
Material codes Service range
Application Pressure MPa{kgf/cm2} Max. speed
(m/s)
Temperature range
(℃)
GPY-Packings RN919 GPY-Packings〈Clearance of extrusion H9/f8〉 17.5{175} 1 -30~100 General petroleum based oil
Water polyglycol solutions
Water-in-oil emulsions
w/Back-up ring 25{250} 0.5
(Piston packings) w/Standard & high pressure back-up rings 35{350}
GNY-Packings RN919 GNY-Packings〈Clearance of extrusion H9/f8〉 17.5{175} 1 -30~100
w/Back-up ring 25{250} 0.5
w/Back-up ring w/Standard & high pressure back-up rings 35{350}
RGY-Packing RN923 RGY-Packings〈Clearance of extrusion H9/f8〉 14{140} 1 -25~100
w/Back-up ring 21{210} 0.5
w/Back-up ring w/Standard & high pressure back-up rings 28{280}
RNY-Packings RN922 RNY-Packings〈Clearance of extrusion H9/f8〉 14{140} 1 -25~100
w/Back-up ring 21{210} 0.5
(Rod packings) w/Standard & high pressure back-up rings 28{280}
ⓉSGY-Packings RN812 w/Back-up ring 21{210} 0.5 -45~100 Mineral oils
Mineral oils for low temperature applications
Do not use MIL H 5606 oils
(Piston packings)
ⓉSNY-Packings RN809 w/Back-up ring 21{210} 0.5 -45~100
(Rod packings)
SKY-Packings RN906
(RF905)
(RF907)
SKY-Packings〈Clearance of extrusion H9/f8〉 14{140} 1(0.5) -10~80
(-5~150)
Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
Mineral oils
Phosphoric ester
w/Back-up ring 21{210} 0.5
(Piston & rod packings) w/Standard & high pressure back-up rings 28{280}
SKY-Packings RN906
(RF905)
(RF907)
KY-Packings〈Clearance of extrusion H9/f8〉 15{150} 1(0.5) -10~80
(-5~150)
w/Back-up ring 30{300} 0.5
(Piston & rod packings) w/Standard & high pressure back-up rings 35{350}
RGU-Packings RN923 RGU-Packings〈Clearance of extrusion H9/f8〉 14{140} 1 -25~100
w/Back-up ring 21{210} 0.5
(Piston packings) PWLベアリング併用 -25~80
HSD-Packings RN906 HSD-Packings〈Clearance of extrusion H9/f8〉 14{140} 1 -10~80
(Piston packings) w/Back-up ring 21{210} 0.5
PENTA-Seals
(PS)
RN906
(RF905)
PENTA-Seals〈Clearance of extrusion H9/f8〉 14{140} 0.5 -10~80
(-5~150)
(Rod packings) w/Back-up ring 21{210}
NMY-Packings RN906 NMY-Packings〈Clearance of extrusion H9/f8〉 14{140} 0.5 -10~80
(Rod packings) w/Back-up ring 21{210}
OSY-Packings RN801 For Hydro-pneumatic Cylinder
For low hydraulic pressure
5{50} 1 -10~80
(Piston packings)
OSD-Packings RN712 For Hydro-pneumatic Cylinder 1{10} 0.5 -10~80
(Piston packings) For low hydraulic pressure 1.5{15}
NHUパッキン RN906 For low hydraulic pressure 1{10} 0.5 -10~80
(Rod packings)
ST-Seals (ST) PT111 ST 25{250} 3 -30~100
(Piston packings)
ST-Seals (STS) PT111 STS 10{100} 1 -30~100
(Piston packings)
STK-Seals (STG) PT111 STG 28{280} 3 -30~100
(Piston packings)
SMJ-Seals PT154 SMJ-Seals Clearance of extrusion Diameter 21{210} 3 -30~100
(Rod packings) SMJ-Seals Clearance of extrusion Diameter 35{350}
STK-Seals (STR) PT151 STR 28{280} 0.3 -30~100
(Piston packings/
Rotation & Oscillation applications )
STC-Seals PT174 STC 10{100} 0.3 -20~100
(Rod packings/
Rotation & Oscillation applications)
●Service ranges and material codes specified in ( ) are of heat resistant materials. Since heat resistant materials have limited pressure resistance,
consider adding back-up rings to the sealing system to retain durability.
●As aqueous based hydraulic fluids provide lower lubricating ability comparing with general mineral oil based fluids, the packings used in those systems
could be less durable. At temperature above 70 ℃, aqueous based hydraulic fluids may not allow packings to achieve enough durability.
●The heat resistant material for the SKY-300F, KY-250F and larger sized products is RF907 instead of RF905.
●Contact our engineers for a technical guidance to use high pressure back-up ring in the system.
●Details of material codes can be referred to Classification of materials

Pneumatic Seals

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Part Name Standard Material Quality of air
Material codes Service range Lube Non-lube Dry air
Application Pressure
MPa{kgf/cm2}
Max. speed
(m/s)
Temperature range
(℃)
PGY-Packings RN729
(RF905)
1{10} 1 -20~80
(-5~150)
(Piston packings)
PNY-Packings RN729
(RF905)
1{10} 1 -15~60
(-5~150)
(Rod packings)
GLY-Z-Packings RK703
(RF905)
1{10} 1 -25~70
(-5~150)
(Piston & rod packings)
PPD-Packings RN729 1{10} 1 -20~80
(Piston packings)
PSD-Packings RN729
(RF704)
1{10} 1 -20~80
(-5~150)
(Piston packings)
PDU-Packings RN818
(RF905)
1{10} 1 -15~60
(-5~150)
 
(Rod packings)
Mini Y-Packings
MYA・MYN・MYH
MYA
RK703
(特殊配合NBR)
0.8{8} 0.4 -25~70  
MYN
RN716
(NBR)
-10~70
(Piston & rod packings) MYH
RF704
(FKM)
-5~150
MYP-Packings RN722 1{10} 0.5 -20~60
(Piston packings)
MYR-Packings RN818
(RF704)
1{10} 0.5 -15~60
(-5~150)
(Rod packings)
PPY-Packings RN729
(RF704)
1{10} 1 -15~60
(-5~150)
(Piston packings)
PRY-Packings RN729
(RF704)
1{10} 1 -20~80
(-5~150)
(Rod packings)
RY-Packings RN906 1{10} 1 -10~70    
(Piston & rod packings)
AL-Packings RD902
RD903
1{10} 1 -10~70    
(Piston packings)
Grid-Surface Gaskets RN917
RD914
1{10} - -30~80
(Static gaskets)
●Material codes, temperature ranges and applicable fluid specified in ( ) are heat resistant materials.
●Some part of MYH packings are slightly different in profiles.

Wipers

Information about others on hydraulic packings [Click here]

Part Name Standard Material Operating fluid Hydraulic Air Hydro Pneumatic
Material codes Service range Lube Non-lube Dry air
Application Pressure
MPa{kgf/cm2}
Max. speed
(m/s)
Temperature range
(℃)
SDR-Wipers RN906
(RF905)
-
1
(0.5)
-25~100
(-5~150)
Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
(Mineral oils
Phosphoric ester)
(Rod wipers)
SCK-Wipers RN814 - 1 -45~100 Mineral oils
Mineral oils for low
(Rod wipers)
SCB-Wipers RN807 -
1
(0.5)
-30~100 Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
(Mineral oils
Phosphoric ester)
(Rod wipers)
SER-Wipers RN906
(RF905)
- 0.5 -25~100
(-5~150)
   
(Rod wipers)
Soft-Wipers wipers BF001 - 1 -30~80 Mineral oils
Mineral oil based grease
Piston & Rod wipers
SFR-Wipers RN912 - 1 -30~100 -    
(Rod wipers)
SDB-Wipers RN819
(RF903)
- 1 -25~100
(-5~150)
Water soluble cutting oil
Cutting oil of sulfide lines
Industrial water
(Cutting oil of chloride lines)
(Rod wipers)
SMD-Wipers PT165 - 3 -30~100 Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
         
(Rod wipers)
MDH-Coil scrapers C5191W
[PBW2]
(SUS304)
- 1 100℃ or less (Rod less than φ70)
80℃ or less (Rod φ70~less than φ100)
-          
(Rod wipers)
●Material codes, temperature ranges and applicable fluid specified in ( ) are heat resistant materials.

Bearings

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Part Name Standard Material Operating fluid Hydraulic Air Hydro Pneumatic
Material codes Service range Lube Non-lube Dry air
Application Pressure
MPa{kgf/cm2}
Max. speed
(m/s)
Temperature range
(℃)
SW-Wear rings PB201 - 3 -55~120 Mineral oils
Mineral oils for low
Phosphoric ester
     
(Piston wear rings)
SWA-Wear rings PB201 - 3 -55~120
(Piston wear rings)
SWB-Wear rings PB251 - 3 -55~120
(Piston wear rings)
SWO-Wear rings PB271 - 3 -55~120 Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
Phosphoric ester
(Piston packings)
S-FLON Wear ring (Tape/SBT) PT141 - 3 -55~200 Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
Phosphoric ester
(Piston & rod packings)
PWL-Bearings PN104 21{210} 1 -25~80          
(Piston wear rings)
S-LEEVE (WPB type) PN104 21{210} 1 -25~80 Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
Phosphoric ester
       
(Piston packings)
S-LEEVE (WRB type) PN104 21{210} 1 -25~80        
(Rod packings)
●Material codes, temperature ranges and applicable fluid specified in ( ) are heat resistant materials.
●At temperature above 70 ℃, aqueous based hydraulic fluids may not allow SWO-Wear rings to achieve
enough durability.

Cushion Seals

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Part Name Standard Material Operating fluid Hydraulic Air Hydro Pneumatic
Material codes Service range Lube Non-lube Dry air
Application Pressure
MPa{kgf/cm2}
Max. speed
(m/s)
Temperature range
(℃)
PCS-Cushion seals RN803
(RF903)
1{10} 0.5 -5~80
(-5~150)
-    
-
KCS-Cushion seals PN104 5{50} 1 -40~80 Mineral oils        
-
YCS-Cushion seals PD101 1{10} 1 -30~80  
-
●Material codes, temperature ranges and applicable fluid specified in ( ) are heat resistant materials.

Decompression ring

Information about others on hydraulic packings [Click here]

Part Name Standard Material Operating fluid Hydraulic Air Hydro Pneumatic
Material codes Service range Lube Non-lube Dry air
Application Pressure
MPa{kfg/cm2}
Max. speed
(m/s)
Temperature range
(℃)
PG-Rings PT111 21{210} 1 -55~80 Mineral oils
Water polyglycol solutions
Water-in-oil emulsions
Phosphoric ester
       
PGRO type
(Piston rings)
PGRI type
(Rod rings)
●Material codes, temperature ranges and applicable fluid specified in ( ) are heat resistant materials.