PSH + RR

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PSH + RR PISTON SEAL

 

DESCRIPTION

The PSH piston seal type is similar to the PSA type, but it has an acetylic resin wear ring to mitigate possible misalignments and avoid extrusion. A RR retaining ring made of thermoplastic resin prevents seal extrusion during the cycle inversion.

 

TECHNICAL DATA

PSH + RR Piston Seal

Pressure: <400 bar at a temperature of 60°C

Speed: <0.5 m/s

Temperature: from -35°C to +100°C with peaks till +110°C

Fluids: mineral fluids and oils

 

MATERIAL

The proposed material is a C0 -type polyurethane with high modulus of elasticity, low compression-set and high resistance to abrasion. The wear ring is made of a R0 type acetylic resin, and is reinforced with fibreglass. Compound reference PSH: CR
The retaining seal is made of thermoplastic resin, R2 type. Compound reference RR: R2

 

ASSEMBLY

Avoid all cutting edges and flash on the piston where the seal is housed. A lead-in chamfer in the groove will facilitate the insertion of the piston. Lubricate the seal before installation.

 

DRAWING PSH + RR PISTON SEAL

psh + rr piston seal artic seals

ARTICLES PSH + RR PISTON SEAL

E+0,2 E2 +0,1 +0,2 d2 0/-0,05 E1 ±0,1 C d1 ±0,1 ART  /  ITEM ART  /  ITEM
10,0 3,10 28,50 6,35 4,0 15,80 PSH 0320 0200 100 CR RR 0320 ## R2
10,0 3,10 31,40 6,35 4,0 17,80 PSH 0350 0220 100 CR RR 0350 ## R2
9,4 3,10 35,40 6,35 4,0 21,60 PSH 0400 0260 094 CR RR 0400 ## R2
9,5 3,10 40,40 6,35 4,0 25,80 PSH 0450 0300 095 CR RR 0450 ## R2
14,5 3,35 44,30 6,35 4,0 25,80 PSH 0500 0300 145 CR RR 0500 ## R2
11,0 3,10 50,36 6,35 4,0 35,80 PSH 0550 0400 110 CR RR 0550 ## R2
14,5 3,35 54,20 6,35 4,0 36,10 PSH 0600 0400 145 CR RR 0600 ## R2
10,5 3,10 58,40 6,35 4,0 40,84 PSH 0630 0450 ## CR RR 0630 ## R2
14,5 3,35 64,20 6,35 5,0 45,84 PSH 0700 0500 145 CR RR 0700 ## R2
14,5 3,35 69,20 6,35 5,0 51,10 PSH 0750 0550 145 CR RR 0750 ## R2
14,5 3,35 84,15 6,35 5,0 66,10 PSH 0900 0700 145 CR RR 0900 ## R2
14,5 3,35 89,15 6,35 5,0 71,10 PSH 0950 0750 145 CR RR 0950 ## R2

 

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