POLYPAC -VEEPAC CH-G1

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POLYPAC -VEEPAC CH-G1

Description

POLYPAC -VEEPAC CH-G1 is a set of fabric reinforced rings comprising one support ring, one sealing ring and a pressure energizing ring. It is a single acting piston seal. The support ring or base ring is manufactured out of nitrile elastomer with high Shore A hardness and reinforced with impregnated cotton fabric layers for an optimal extrusion resistance. The intermediate ring – the sealing ring – is a fabric reinforced nitrile elastomer with good resilience characteristics enabling the radial deflection under pressure load. Consequently the optimum sealing force is applied to the bore to be sealed. The energiser or spreader ring is made of POM or PTFE. Its function is to ensure a uniform pre-load of the seal. In some specific applications the energiser ring is made out of Acetal resin or Phenolic resin. Please contact our local B+S company for further details.

POLYPAC -VEEPAC CH-G1 figuur 53

Advantages

– Exceptional wear resistance
– Pre-load adjustment capability
– Excellent behavior in harsh conditions

Application Examples

The Veepac seal is recommended for single acting or
double acting (back to back installation) pistons in
following applications:

  • Mining equipment
  • Excavator cylinders
  • Steel mill cylinders
  • Presses

Technical Data

Operating conditions:

Pressure: Up to 40 MPa
Velocity: Up to 0.5 m/s
Temperature:-30_C to +200_C, depending on material
Media: Mineral oil, water glycol, water emulsions

Important Note:

The above data are maximum values and cannot be used at the same time. e.g. the maximum operating speed depends on material type, pressure, temperature and gap value. Temperature range also dependent on medium.

Materials

The following material can be delivered:

POLYPAC -VEEPAC CH-G1 Materials

Ordering Example

For sealing element Veepac CH/G1 comprising 1 base ring and 1Chevron element in cotton fabric reinforced NBR and the Spreader ring in POM.

Bore diameter: DN = 80.0 mm
Part No. from table XLIX: PCH0G0800
Material set-code
from material table above: N0O0C

POLYPAC -VEEPAC CH-G1 Order

POLYPAC -VEEPAC CH-G1 Figuur 54

 

POLYPAC -VEEPAC CH-G1

Bore Dia. Groove Dia. Groove Width Piston Dia. Seal Width Single Ring Height Part No. Polypac Ref. No.
DN Tol. d1 h11 L +0.3 d2 -0.3 T T1
40,0
25,0 11,5 39,0 11,0 3,2 PCH0G0400 CH 157098 G1
50,0 35,0 11,5 49,0 11,0 3,5 PCH0G0500 CH 196137 G1
55,0 H9/f8 40,0 11,5 54,0 11,0 2,9 PCH0G0550 CH 216157 G1
63,0 48,0 13,0 62,0 12,5 3,7 PCH0G0630 CH 248188 G1
65,0 50,0 11,5 64,0 11,0 3,9 PCH0G0650 CH 255196 G1
80,0 60,0 15,2 79,0 14,6 5,1 PCH0G0800 CH 314236 G1
100,0 H8/f8 80,0 21,2 99,0 20,6 5,0 PCH0G1000 CH 393314 G1
125,0
100,0 25,8 124,0 25,0 6,1 PCH0G1250 CH 492393 G1
140,0 115,0 25,8 139,0 25,0 8,0 PCH0G1400 CH 551452 G1
160,0 130,0 29,0 158,5 28,0 6,0 PCH0G1600 CH 629511 G1
180,0 H8/f7 150,0 31,5 178,5 30,5 9,9 PCH0G1800 CH 708590 G1
200,0
170,0 33,5 198,5 32,5 7,4 PCH0G2000 CH 787669 G1
240,0 210,0 33,5 238,5 32,5 10,2 PCH0G2400 CH 944826 G1
250,0 220,0 33,5 248,5 32,5 10,2 PCH0G2500 CH 984866 G1

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