KDSP

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KDSP PISTON SEAL

 

DESCRIPTION

The KDSP Piston Seal is designed to be a piston seal with interchangeable seats ISO 6547. It consists of only three elements: a polyurethane seal at the centre and two side wiper rings in glass-filled polyacetal resin. This system does away with anti-extrusion supports, given the high modulus of elasticity of the central element and the higher hardness when compared to nitrilic rubber. Abrasion is also considerably reduced, thus facilitating the construction of the seat and bores and therefore extending the service life of the seal.

 

TECHNICAL DATA

Pressure: from 0 to 300 Bar with peaks up to 400 Bar at 60°C.

Speed: 0.8 m/s

Temperature: from –30°C to +100°C

Fluids: mineral oils

 

MATERIAL

The materials used for the construction of this seal type are as follows:

  • Polyurethane for the central element, hardness 93 Sh A, compound reference C0
  • Glass-filled polyacetal resin (POM) for the side elements Compound reference: CX

ASSEMBLY

This seal can be assembled both in closed groove on a monobloc piston and in open groove on a two-part piston. The piston must not have machining scores which might damage the sealing during the installation.

 

DRAWING KDSP PISTON SEAL

kdsp piston seal artic seals

 

ARTICLES KDSP PISTON SEAL

Dh9 dh9 E+0,2 d1h9 d2±0,2 E1 0/+0,1 R C ART  /  ITEM
* 25,0 15,0 12,5 22,0 24,0 4,0 0,4 5,0 KDSP 0250 0150 125 CX
* 25,0 17,0 10,0 22,0 24,0 4,0 0,4 5,0 KDSP 0250 0170 100 CX
* 32,0 22,0 12,5 29,0 31,0 4,0 0,4 5,0 KDSP 0320 0220 125 CX
* 32,0 24,0 10,0 29,0 31,0 4,0 0,4 5,0 KDSP 0320 0240 100 CX
* 40,0 30,0 12,5 36,0 38,0 4,0 0,4 5,0 KDSP 0400 0300 125 CX
* 40,0 32,0 10,0 37,0 39,0 4,0 0,4 5,0 KDSP 0400 0320 100 CX
* 50,0 35,0 20,0 46,0 48,5 5,0 0,4 5,0 KDSP 0500 0350 200 CX
* 50,0 40,0 12,5 47,0 49,0 4,0 0,4 5,0 KDSP 0500 0400 125 CX
* 55,0 45,0 12,5 52,0 54,0 4,0 0,4 5,0 KDSP 0550 0450 125 CX
* 63,0 48,0 20,0 59,0 62,0 5,0 0,4 5,0 KDSP 0630 0480 200 CX
* 63,0 53,0 12,5 60,0 62,0 4,0 0,4 5,0 KDSP 0630 0530 125 CX
* 70,0 55,0 20,0 66,0 68,5 5,0 0,4 5,0 KDSP 0700 0550 200 CX
70,0 60,0 12,5 67,0 69,0 4,0 0,4 5,0 KDSP 0700 0600 125 CX
* 80,0 65,0 20,0 76,0 78,5 5,0 0,4 5,0 KDSP 0800 0650 200 CX
80,0 70,0 12,5 77,0 79 4,0 0,4 5,0 KDSP 0800 0700 125 CX
* 90,0 75,0 20,0 86,0 88,5 5,0 0,4 5,0 KDSP 0900 0750 200 CX
90,0 80,0 12,5 86,0 88,5 5,0 0,4 5,0 KDSP 0900 0800 125 CX
* 100,0 85,0 20,0 96,0 98,5 5,0 0,4 5,0 KDSP 1000 0850 200 CX
100,0 90,0 12,5 96,0 98,5 5,0 0,4 5,0 KDSP 1000 0900 125 CX

* ISO 7425

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