MANOY® Shaft Seal

Type 251

MANOY® Shaft Seal

Type 256

MANOY® Shaft Seal

Type 261

MANOY® Shaft Seal

Type 266

TECHNICAL DATAS

outer sealing inner sealing outer sealing inner sealing
Motion Motion Motion Motion
rotary, partially static, partially linear rotary, partially static, partially linear rotary, partially static, partially linear rotary, partially static, partially linear
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)
15 15 15 15
Rotary speed (m/s) Rotary speed (m/s) Rotary speed (m/s) Rotary speed (m/s)
5 5 5 5
Diameter range (mm) Diameter range (mm) Diameter range (mm) Diameter range (mm)
20 to 1000 5 to 1000 20 to 1000 5 to 1000
Housing Housing Housing Housing
split

split

split

split

Type 251 outer sealing
Motion rotary, partially static, partially linear
Direction of pressure unidirectional
Operating pressure (MPa) 15
Rotary speed (m/s) 5
Diameter range (mm) 20 to 1000
Housing split
Type 256 inner sealing
Motion rotary, partially static, partially linear
Direction of pressure unidirectional
Operating pressure (MPa) 15
Rotary speed (m/s) 5
Diameter range (mm) 5 to 1000
Housing split
Type 261 outer sealing
Motion rotary, partially static, partially linear
Direction of pressure unidirectional
Operating pressure (MPa) 15
Rotary speed (m/s) 5
Diameter range (mm) 20 to 1000
Housing split
Type 266 inner sealing
Motion rotary, partially static, partially linear
Direction of pressure unidirectional
Operating pressure (MPa) 15
Rotary speed (m/s) 5
Diameter range (mm) 5 to 1000
Housing split

APPLICATIONS

  • High thermal or chem­ic­al specifications 
  • Medi­um pres­sure and low speed 
  • Suit­able for almost all fluids 
  • Robot axes 
  • Rotary uni­ons 
  • Rotary actu­at­ors 
  • Rotary cyl­in­ders 
  • Pipe joints 
  • Valve spindles 
  • Swiv­els

CHARACTERISTICS

  • Pres­sure-activ­ated seal energization 
  • Clamp­ing of the flange in the hous­ing pre­vents unwanted rel­at­ive motion
  • Ideal for slow rotary, oscil­lat­ing and hel­ic­al motion 
  • Dry run­ning possible 
  • Low coef­fi­cient of friction 
  • Very long seal life due to high abra­sion resistance
  • Non-sens­it­ive to pres­sure peaks and dies­el effect 
  • No chat­ter (stick-slip) at low speed
  • Does not stick to the mat­ing sur­face after pro­longed shutdown
  • Avail­able for any dia­met­er up to 1,000 mm

TEMPERATURE RANGE

From -100 to +200 °C (tem­por­ar­ily +260 °C)

but depend­ent on the seal mater­i­al in each case.

MATERIALS

IDG seal material

  • 82B (hydraul­ics) up to 10 MPa
  • 32B (pneu­mat­ics) up to 15 MPa
  • 36B up to 25 MPa

Spring mater­i­al

  • IDG mater­i­al R43 (stain­less steel, mater­i­al No. 1.4310)

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

PV lim­its

The dia­grams give PV lim­its which should be con­sidered as recommendations.

Note:
For dia­met­ers S < 50 mm, the oper­at­ing para­met­ers must be fur­ther restric­ted due to poor heat dissipation.

Prac­tic­al pre­lim­in­ary tests are neces­sary near the lim­it curves and also for tem­per­at­ures and flu­ids dif­fer­ent from the ones used here.

Flu­id: Hydraul­ic oils, hydraul­ic flu­ids HFA and HFB
Tem­per­at­ure: 80 °C max.
Shaft seal mater­i­al: 82B

Motion: Rotary or oscillating

➀ Rotary and oscil­lat­ing, non-intermittent

➁ Rotary and oscil­lat­ing, intermittent
6 s motion/2 s standstill

➂ Rotary and oscil­lat­ing, intermittent
2 s motion/6 s stand­still – slow advance
hel­ic­al in 20:1 ratio

 

Flu­id: Water
Tem­per­at­ure: 95 °C max.
Shaft seal mater­i­al: 82B