MANOY® System Seal WP

Type 461

MANOY® System Seal WP

Type 466

MANOY® System Seal WP

Type 481

MANOY® System Seal WP

Type 486

TECHNICAL DATAS

outer sealing inner sealing outer sealing inner sealing
Motion Motion Motion Motion
linear, partially rotary, partially static linear, partially rotary, partially static linear, partially rotary, partially static linear, partially rotary, partially 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)
40 40 40 40
Linear speed (m/s) Linear speed (m/s) Linear speed (m/s) Linear speed (m/s)
5 5 2 2
Diameter range (mm) Diameter range (mm) Diameter range (mm) Diameter range (mm)
100 to 2800 100 to 2800 35 to 2000 35 to 2000
Housing Housing Housing Housing
non-split
(from 100 mm Ø) 		non-split
(from 100 mm Ø) 		split

split

Type 461 outer sealing
Motion linear, partially rotary, partially static
Direction of pressure unidirectional
Operating pressure (MPa) 40
Linear speed (m/s) 5
Diameter range (mm) 100 to 2800
Housing non-split
(from 100 mm Ø)
Type 466 inner sealing
Motion linear, partially rotary, partially static
Direction of pressure unidirectional
Operating pressure (MPa) 40
Linear speed (m/s) 5
Diameter range (mm) 100 to 2800
Housing non-split
(from 100 mm Ø)
Type 481 outer sealing
Motion linear, partially rotary, partially static
Direction of pressure unidirectional
Operating pressure (MPa) 40
Linear speed (m/s) 2
Diameter range (mm) 35 to 2000
Housing split
Type 486 inner sealing
Motion linear, partially rotary, partially static
Direction of pressure unidirectional
Operating pressure (MPa) 40
Linear speed (m/s) 2
Diameter range (mm) 35 to 2000
Housing split

APPLICATIONS

  • Spe­cially developed for use with Pelton nozzles or servo motors 
  • Also suit­able for use in slid­ing ring seals if a sep­ar­ate seal is fit­ted for each pres­sure direction 
  • Trouble-free response char­ac­ter­ist­ics give pre­cise nozzle valve controllability
  • Uni­ver­sally usable for water and oil hydraulics

CHARACTERISTICS

  • Min­im­um wear for very long ser­vice intervals 
  • For ret­ro­fits these seals can be adap­ted to the install­a­tion dimensions 
  • Avail­able in any dia­met­er up to ca. 2,500 mm
  • Stable scrap­ing effect and high abra­sion res­ist­ance give optim­um oper­a­tion­al reli­ab­il­ity if there is a high abras­ive particle con­tent and risk of cavitation
  • Pres­sure-relieved scraper lip min­im­izes the fric­tion­al force to guar­an­tee good response characteristics

TEMPERATURE RANGE

From -20 to +200 °C

but depend­ent on the seal­ing ring mater­i­al and the O-ring mater­i­al in each case.

MATERIALS

Type 461, 466:

IDG stand­ard seal­ing ring material

  • 57A

O-Ring elast­omer

  • NBR

Type 481, 486:

IDG stand­ard seal­ing ring material

  • A12 for the cas­ing and scraper ring
  • 57A for the seal­ing ring

O-Ring elast­omer

  • NBR

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

Pelton tur­bines are used in hydro­power plants with a high head. The seal­ing sys­tem spe­cific­a­tions are equally high.

Con­trol of the tur­bine out­put is infin­itely vari­able from part to full load by adjust­ing the nozzle spear valve.

The con­trol unit for lin­ear adjust­ment of the jet needle can be pro­tec­ted against water and silt infilt­ra­tion by the MANOY® sys­tem seal WP.

Types 466 and 486 (both inner seal­ing) were spe­cially developed for these applic­a­tions. Types 461 and 481 are for out­er seal­ing con­fig­ur­a­tions. In the con­text of design, types 481 and 486 must have a split housing.

All ver­sions can be sup­plied with cus­tom­ized pro­file dimen­sions for exist­ing groove designs.