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.