Unbalance single face rubber bellow mechanical seal

Temperature -20℃ to +120℃
Speed ≤15m/s
Pressure ≤2.5Mpa
Material V,Q1,Q2,U2,U1,B,A,P,E,V,F,G
Tags:

Type:Elastomeric bellow mechanical seal

Replacement:BURMANN MG910/D1-G55 AESSEAL P05/P05T CRANE 1A VULCAN 22/A5 ROTEN 51A FLOWSERVE 220/51

Temperature:-20℃ to +120℃

Pressure:≤2.5Mpa

Speed:≤15m/s

Material:V,Q1,Q2,U2,U1,B,A,P,E,V,F,G

Features

• For plain shafts

• Single and dual seal

• Elastomer bellows rotating

• Unbalanced

• Independent of direction of rotation

• No torsion on bellows and spring 

• Conical or cylindrical spring

• Metric and inch sizes available 

• Special seat dimensions available

• US Patent No. 6.220.601 

Advantages

• Fits into any installation space due to smallest outer 

seal diameter

• Important material approvals available

• Individual installation length can be achieved

• High flexibility due to extended selection of materials

• Universal application (standardization))

Operating range

Shaft diameter: d1 = 10 … 100 mm (0.375" … 4")

Pressure: p1 = 12 bar (174 PSI),

vacuum…0,5 bar (7.25 PSI), up to bar (14.5 PSI) 

with seat locking

Temperature: t = –20 °C … +140 °C (–4 °F … +284 °F)

Sliding velocity: vg = 10 m/s (33 ft/s)

Axial movement: ±0.5 mm

Materials

Seal face: Carbon graphite antimony impregnated (A), 

Carbon graphite resin impregnated (B), Silicon carbide (Q1) 

Seat: Silicon carbide (Q1, Q2), Aluminium oxide (V)

Elastomer: NBR (P), EPDM (E), FKM (V), HNBR (X4)

Metal parts: CrNiMo steel (G)

Standards and approvals

• EN 12756

• Various material approvals e.g. FDA, WRAS, KTW, ACS, 

W270, NSF available (depending on type and material 

combinations). Please inq

Recommended applications

• Chemical industry

• Pulp and paper industry

• Water and waste water technology

• Cooling fluids 

• Media with low solids content

• Pressure oils for bio diesel fuels

• Circulating pumps

• Submersible pumps

• Multi-stage pumps (non-drive side)

• Water and waste water pumps

• Oil applications 

Item Part no. to DIN 24250 Description

1.1 472 Seal face

1.2 481 Bellows

1.3 485 Drive collar

1.4 484.1 “L” ring (spring collar)

1.5 474 Washer

2 477 Spring

3 475 Seat

4 412 Rubber cup


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