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Ningbo Beton Mechanical Seal Factory

Mechanical Seals, Pump Seals, M7n manufacturer / supplier in China, offering O Ring Mechanical Seal (BM7N), Mechanical Seal for Paper Mill Seal (BS570) 3, Power Plant Mechanical Seal (BS561) and so on.

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O Ring Mechanical Seal (BM7N)

FOB Price: Get Latest Price
Min. Order: 5 Pieces
Port: Ningbo, China
Production Capacity: 5000PCS/Year
Payment Terms: T/T, Western Union, Paypal

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Basic Info
  • Model NO.: BM7N
  • Transport Package: Paper Box
  • HS Code: 8484200090
  • Standard: Standard
  • Origin: Zhejiang Ningbo
Product Description
Alternative to:
• For plain shafts
• Single seal
• Unbalanced
• Super-Sinus-spring or multiple springs rotating
• Independent of direction of rotation
• Pumping screw for media with higher viscosity (M7..F)
• Variant with PTFE secondary seals for high chemical
resistance (M78N)
• Universal application opportunities
• Efficient stock keeping
• due to easily interchangeable faces
• Extended selection of materials
• Insensitive to low solids contents
• Flexibility in torque transmissions
• Self cleaning effect
• Short installation length possible (G16)
Operating range (see note on page 1)
Shaft diameter: d1 = 14 … 100 mm (0.55" … 3.94")
Pressure: p1 = 25 bar (363 PSI)
Temperature: t = -50 °C … +220 °C
(-58 °F … +428 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Axial movement:
d1 = … 25 mm: ±1 mm
d1 = 28 … 63 mm: ±1.5 mm
d1 = from 65 mm: ±2 mm
Seal face: Special cast CrMo steel (S), Silicon carbide
(Q1, Q2), Aluminium Oxide (V)
Seat G9: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B), Silicon carbide
(Q1*, Q2*)
Seat G4: Silicon carbide (Q1*, Q2*)
Seat G6: Silicon carbide (Q1*, Q2*)
Seat G13: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: CrNiMo steel (G)
Metal parts: CrNiMo steel (G), Duplex (G1)
* Cannot be combined with seal face in S
Recommended applications
• Process industry
• Chemical industry
• Pulp and paper industry
• Water and waste water technology
• Shipbuilding
• Food and beverage industry
• Lube oils
• Low solids content media
• Water / sewage water pumps
• Chemical standard pumps
• Vertical screw pumps
• Gear wheel feed pumps
• Multistage pumps (drive side)
• Circulation of printing colors with viscosity
• 500 … 15,000 mm2/s
O Ring Mechanical Seal (BM7N)

O Ring Mechanical Seal (BM7N)
O Ring Mechanical Seal (BM7N)
O Ring Mechanical Seal (BM7N)
O Ring Mechanical Seal (BM7N)
O Ring Mechanical Seal (BM7N)
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