Industry Pump Seal HJ92N HJ97G O-ring Mechanical Seals

Features

· For unstepped shafts

· Single seal

· Balanced

· Independent of direction of rotation

· Encapsulated rotating spring

Advantages

· Especially designed for solids containing and highly viscous media

· Springs are protected from the product

· Rugged and reliable design

· No damage of the shaft by dynamically loaded O-Ring

· Universal application

· Variant for operation under vacuum available

· Variants for sterile operation available

Operating range

Shaft diameter:
d1 = 18 ... 100 mm (0.625" ... 4")
Pressure:
p1*) = 0.8 abs.... 25 bar (12 abs. ... 363 PSI)
Temperature:
t = -50 °C ... +220 °C (-58 °F ... +430 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Axial movement: ±0.5 mm

* An integral stationary seat lock is not needed within the permissible low pressure range. For prolonged operation under vacuum it is necessary to arrange for quenching on the atmospheric side.

Materials

Seal face: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
Seat G16: Silicon carbide (Q1)

Standards and approvals

· EN 12756

Recommended applications

· Pharmaceutical industry

· Power plant technology

· Pulp and paper industry

· Water and waste water technology

· Mining industry

· Food and beverage industry

· Sugar industry

· Dirty, abrasive and solids containing media

· Thick juice (70 ... 75 % sugar content)

· Raw sludge, sewage slurries

· Raw sludge pumps

· Thick juice pumps

· Conveying and bottling of dairy products

Notes

Variant for sterile applications available.

HJ97GN5
Items and description as HJ92N.
Seal face: Silicon carbide (Q12)
Seat G16: Silicon carbide (Q1)
Installations length l₁₂ (= l₁₃ + l₁₉) is shorter than l_1k.

HJ977GN
Items and description as HJ92N.
Seal face: Silicon carbide (Q12)
Seat G46: Silicon carbide (Q12)
Installation length l_1k
Operating range:
Temperature: t = –20 °C ... +180 °C (-4 °F ... +356 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)

HJ4...
Mechanical seals with product-protected multiple springs, for high pressure applications.
Pressure: p = max. 50 bar (725 PSI)
Shaft diameter: d1 > 100 mm (3.94").
Smaller diameters and higher pressures on request.