Burgmann HJ92N Silicone centrifugal pump mechanical seal

Temperature -20℃ to +180℃
Pressure ≤2.5Mpa
Speed ≤15m/s
Material V1,Q1,Q2,U2,B,A,P,E,V,M1,M2,F,G,M

Type:Wave Spring Mechanical Seal,Suit for, Grundfos,Hilge, Ropac Propac 50 Pumps

Replacement:AES M010,Burgmann HJ92N,Roten EHS

Temperature:-20℃ to +180℃

Pressure:≤2.5Mpa

Speed:≤15m/s

Material:V1,Q1,Q2,U2,B,A,P,E,V,M1,M2,F,G,M

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

• Variant for sterile operation available

Operating range

Shaft diameter: d1 = 18 … 100 mm (0.71" … 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

• Contaminated, 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

Item Part no. to DIN 24250 Description

1.1 472/473 Seal face

1.2 485 Drive collar

1.3 412.2 O-Ring

1.4 412.1 O-Ring

1.5 477 Spring

1.6 904 Set screw

2 475 Seat (G16)

3 412.3 O-Ring

Product variants

HJ927GN

Items and description as HJ92N.

Seal face: Carbon graphite antimony impregnated (A), 

Carbon graphite resin impregnated (B)

Seat G46: Silicon carbide (Q12)

Installations length l11 (= l3 + l39) is longer than l1k.

HJ97GN5

Items and description as HJ92N.

Seal face: Silicon carbide (Q12)

Seat G16: Silicon carbide (Q1)

Installations length l12 (= l13 + l19) is shorter than l1k.

HJ977GN

Items and description as HJ92N.

Seal face: Silicon carbide (Q12)

Seat G46: Silicon carbide (Q12)

Installation length l1k

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 pressure on request.


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