PSD-Packings (Piston packings)

Standard Material: NBR(RN729)

Profiles (Left section)

PSD-2
en_PSD

Service range

Standard Material
Material codes Pressure MPa {kgf/㎠} Max. speed
(m/s)
Temperature range
(℃)
NBR(RN729)
FKM[RF704]
1 {10} 1 ー20~80
[ー5~150]

Material codes・The range with [ ] refers FKM materials

Characteristics

PSD-Packings are compact double acting piston packings. omparing with O-rings,
PSD-Packings provide outstanding friction properties.
PSD-Packings are designed to solve twisting or rolling problem of O-rings, in addition to their excellent friction property.

Remarks

  • ●The material of PSD packing has changed from NBR (RN713) to NBR (RN729), but other materials are also available. Please contact us individually.
  • ●Consider adopting split grooves if one-piece groove is technically adverse.
  • ●φD H9/f8 would be modified according to the variation of the bearing structure. For applications installed in combination with wear rings, refer to the dimension table of the applicable wear rings.
  • ※JIS standard sequence of surface roughness symbols refer to HERE.

Dimension table

Packings & Groove dimensions(Unit:mm) Part No.
D d H G D1 L Standard
(RN 729)
High temperature-resistant
(RF 704)
10 5.4 1.6 1.8 9.7 1 PSD-10K PSD-10F
12 7.4 1.6 1.8 11.7 1 PSD-12K PSD-12F
15 10.4 1.6 1.8 14.7 1 PSD-15K PSD-15F
16 11.4 1.6 1.8 15.7 1 PSD-16K PSD-16F
20 14 2.24 2.4 19.5 1.5 PSD-20K PSD-20F
25 17 3 3.2 24.5 2 PSD-25K PSD-25F
30 22 3 3.2 29.5 2 PSD-30K PSD-30F
32 24 3 3.2 31.5 2 PSD-32K PSD-32F
38 30 3 3.2 37.5 2 PSD-38K  
40 32 3 3.2 39.5 2 PSD-40K PSD-40F
44 36 3 3.2 43.5 2 PSD-44K PSD-44A-3F
50 40 3.8 4 49.5 2.5 PSD-50K PSD-50F
56 46 3.8 4 55.5 2.5 PSD-56K  
60 50 3.8 4 59.5 2.5 PSD-60K PSD-60A-5F  
63 53 3.8 4 62.4 2.5 PSD-63K PSD-63F
70 55 5.6 6 69.4 3 PSD-70K PSD-70A-3F
75 60 5.6 6 74.4 3 PSD-75K  
80 65 5.6 6 79.4 3 PSD-80K PSD-80F
85 70 5.6 6 84.4 3 PSD-85K  
90 75 5.6 6 89.4 3 PSD-90K  
95 80 5.6 6 94.4 3 PSD-95K  
100 85 5.6 6 99.4 3 PSD-100K PSD-100F
110 95 5.6 6 109.3 3 PSD-110K  
120 105 5.6 6 119.3 3.5 PSD-120K  
125 110 5.6 6 124.3 3.5 PSD-125K PSD-125F
140 125 5.6 6 139.3 3.5 PSD-140K PSD-140F
150 135 5.6 6 149.3 3.5 PSD-150K  
160 140 7.6 8 159.3 5 PSD-160K  
180 160 7.6 8 179.3 5 PSD-180K PSD-180F
200 180 7.6 8 199 5 PSD-200K PSD-200A-4F*
230 210 7.6 8 229 5 PSD-230K
250 230 7.6 8 249 5 PSD-250K  
300 280 7.6 8 299 5 PSD-300K  
  • ★Orders and inquiries are acceptable by part numbers. Part numbers marked ※ have been changed each part numbers. Please check HERE for the previous part number.
  • ★Part numbers in blue letters are the products in stock.
  • ★Packings with the part numbers in light Italic require the confirmation of their availability prior to ordering. These items are subject to the abolishment without notice. Reclamation of an abolished product requires producing the new tooling at your expense.
  • ★Packings are adequately packaged for the optimum storage. Refer to Cautions for the handling and storage.
  • ★Performance and material tests on packing and seals are also available. Please contact us for more information.