MANOY® Back-Up Ring HP

Type SHA

MANOY® Back-Up Ring HP

Type SHI

MANOY® Back-Up Ring HP

Type SHR

MANOY® Back-Up Ring HP

Type SHR

TECHNICAL DATAS

axial outer back-up axial inner back-up outer back-up inner back-up
Motion Motion Motion Motion
static static static static
Direction of pressure Direction of pressure Direction of pressure Direction of pressure
unidirectional unidirectional unidirectional unidirectional
Operating pressure (MPa) Operating pressure (MPa) Operating pressure (MPa) Operating pressure (MPa)
1000 1000 1000 1000
Diameter range (mm) Diameter range (mm) Diameter range (mm) Diameter range (mm)
7 to 3000 4 to 3000 7 to 3000 4 to 3000
Housing Housing Housing Housing
split

split

split

split

Type SHA axial outer back-up
Motion static
Direction of pressure unidirectional
Operating pressure (MPa) 1000
Diameter range (mm) 7 to 3000
Housing split
Type SHI axial inner back-up
Motion static
Direction of pressure unidirectional
Operating pressure (MPa) 1000
Diameter range (mm) 4 to 3000
Housing split
Type SHR outer back-up
Motion static
Direction of pressure unidirectional
Operating pressure (MPa) 1000
Diameter range (mm) 7 to 3000
Housing split
Type SHR inner back-up
Motion static
Direction of pressure unidirectional
Operating pressure (MPa) 1000
Diameter range (mm) 4 to 3000
Housing split

APPLICATIONS

With these back-up rings the oper­a­tion­al range of pre­ci­sion O-rings extends to a max­im­um oper­at­ing pres­sure of 1,000 MPa.

SHR series
HP high pres­sure back-up ring

  • For stat­ic applic­a­tions and lin­ear motion
  • Advant­ages of the con­cave form as for the SKS and SKC series
  • Required for large groove depth vari­ations and gap expan­sion caused by pres­sure breathing
  • For install­a­tion in split grooves only

SHA series
HP high pres­sure back-up ring, extern­al installation

  • For stat­ic applic­a­tions, intern­al pressure
  • Advant­ages of the con­cave form as for SKA series
  • Required for wide groove depth vari­ations caused by pres­sure breathing
  • Easy to install in non-split grooves

SHI series
HP high pres­sure back-up ring, intern­al installation

  • For stat­ic applic­a­tions, extern­al pressure
  • Advant­ages of the con­cave form as for the SKI series
  • Required for large groove depth vari­ations caused by pres­sure breathing
  • Easy to install in non-split grooves

CHARACTERISTICS

Sys­tem advantages:

  • Pro­duc­tion costs can be reduced due to lar­ger clear­ance gap 
  • Pre­vents met­al contact 
  • Com­pensates clear­ance gap and cross-sec­tion vari­ations caused by pres­sure expan­sion, thermal expan­sion, play and displacement
  • Allows the use of pre­ci­sion O-rings of medi­um hardness 
  • Suit­able for almost all fluids 
  • Avail­able for any cross-sec­tion dia­met­er and for indi­vidu­al groove dimensions 
  • Easy to install
  • Inex­pens­ive com­pon­ent with a massive effect

TEMPERATURE RANGE

From -200 to +200 °C

but depend­ent on the back-up ring mater­i­al in each case.

MATERIALS

IDG back-up ring material

  • H12 (Ther­mo­plastic)
  • A12 (Ther­mo­plastic)
  • P50 (Ther­mo­plastic)

Mater­i­al descrip­tion and oth­er mater­i­als for wider applic­a­tions FIND OUT MORE >