Type: O-Ring Mechanical Seal
Replacement: Burgmann H12N，AES T01DB
Temperature：-20℃ to +180℃
Pressure：≤1Mpa
Speed：≤15m/s
Material：Q2.U2,B,V1,P,E,V,F,G
Features：
• For Stepped shafts
• Single seal
• Balanced
• Dependent of direction of rotation
• Torque transmission via conical spring
Advantages：
• High flexibility due to extended selection of materials
• Insensitive to low solids contents
• Short Installation length possible (G16)
• Economical balanced seal
• Seat cooling for hot water applications available (G115)
• No damage of the shaft by set screws
Operating range (see note on page 1)
Shaft diameter d1 = 10 … 80 mm (0.4" … 3.125")
Pressure: p1 = 25 bar (363 PSI)
Temperature: t = –50 °C … +220 °C
(–58 °F … +430 °F)
Sliding velocity: vg = 15 m/s (50 ft/s)
Axial movement: ±1.0 mm
Materials:
Seal face: Carbon graphite antimony impregnated (A)
Seat G9: Silicon carbide (Q1), Special cast CrMo steel (S)
Standards and approvals:
• EN 12756
Recommended applications:
• Chemical industry
• Pulp and paper industry
• Water and waste water technology
• Low solids content media (H17GN)
• Hot water
• Chemical standard pumps
• Water and sewage pumps
Item Part no. to DIN 24250 Description:
1.1 472/473 Seal face
1.2 412.1 O-Ring
1.3 474 Thrust ring
1.4 478 Righthand spring
1.4 479 Lefthand spring
2 475 Type G9 stationary seat
3 412.2 O-Ring
Product variants
H12
Dimensions, items and descriptions as for H12N, but with
seat G16.
Seal face: Carbon graphite antimony impregnated (A)
Seat G16: Silicon carbide (Q1), Special cast
CrMo steel (S), Aluminium oxide (V)
H17GN
Dimensions, items and descriptions as for H12N,
but with shrink-fitted seal face (Q12)
(Item no. 1.1).
Temperature: t = –20 °C … +180 °C (–4 °F … +356 °F)
Seal face: Silicon carbide (Q12)
Seat G9: Silicon carbide (Q1, Q2),
Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
H17G
Dimensions, items and descriptions as for H12N, but
with shrink-fitted seal face (Q12) and seat G16.
Temperature: t = –20 °C … +180 °C (–4 °F … +356 °F)
Seal face: Silicon carbide (Q12)
Seat G16: Silicon carbide (Q1)
O ring, also known as packing or toric joint, is a kind of ring-shaped mechanical washer; it is an elastic body ring with circular cross-section, which is designed to be fixed in the groove, compress when assembling two or more parts, and form a seal at the interface. High flexibility due to extended selection of materials; Insensitive to low solids contents; Short Installation length possible (G16); Economical balanced seal; Seat cooling for hot water applications available (G115) and No damage of the shaft by set screws. EagleBurgmann is your best choice.
