KHT - Dvojčinné těsnění pístu

POPIS

Double Acting Piston Seal

MATERIÁL NA DYNAMICKÉM POVRCHU

Typ: Thermoplastic polyester resin
Označení: SEALITE 55
Tvrdost: 55°ShD

MATERIÁL NA STATICKÉM POVRCHU

Typ: Nitril Rubber NBR
Označení: RUBSEAL 70
Tvrdost: 70°ShA

HLAVNÍ VLASTNOSTI

The piston seal type KHT is composed of:

A dynamic seal element that, due to the special design, improves the pressure distribution and drastically reduces the friction. It is made of a special high resistance polymer that provides a winning combination for many parts and components: it gives the flexibility of rubbers, the strength of plastics, and the process-ability of thermoplastics. It increases the performance and service life in applications where properties such as abrasion resistance and tear strength are critical. Conical shaped notches allow the seal to energize without risk of extrusion of O-Ring.

A standard size O-Ring with low permanent deformation as energizing component on the static side.

  • Easy installation on a solid piston
  • Returns to the size immediately after assembly
  • Low friction and no tendency of stick-slip
  • Simple groove design and space-saving construction
  • Excellent wear-resistance
  • High resistance against extrusion
  • Extended service life
  • Good temperature resistance

OBLAST POUŽITÍ

Tlak
≤ 500 bar
Rychlost
≤ 0,5 m/s (100°C)
≤ 1,0 m/s (80°C)
Teplota
-30°C ÷ +100°C
Kapaliny
Hydraulické oleje (na bázi minerálního oleje).
Pro jiné kapaliny kontaktujte naše technické oddělení

DRSNOST POVRCHU

Dynamivcký povrch
Ra ≤ 0,3 µm    Rt ≤ 2,5 µm
Statický povrch
Ra ≤ 1,6 µm Rt ≤ 6,3 µm

GAP DIMENSION "G"

The largest gap dimension appearing [mm] in operation on the non-pressurised side:

L 100 bar 200 bar 300 bar 400 bar
2.2 0.70 0.45 0.35 0.30
3.2 0.80 0.50 0.40 0.30
4.2 0.80 0.50 0.40 0.35
6.3 0.90 0.55 0.45 0.35
8.1 1.10 0.70 0.50 0.40

> 400 bar => gmax = H8/f8

 

LEAD-N CHAMFERS

L S
2.2 2.0
3.2 2.5
4.2 3.5
6.3 5.0
8.1 6.5
9.5 7.5
13.8 10
 
 
  • Abyste předešli poškození těsnění, zástavba musí mít zkosené hrany.
  • Ostré hrany a otřepy v instalační oblasti je třeba odstranit.