M7N Wave Spring Mechanical Seal
Features:
For plain shafts
Single seal
Unbalanced
Super-Sinus-spring or multiple springs rotating
Independent of direction of rotation
Variant with PTFE secondary seals for high
chemical resistance (M78N)
Advantages:
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)
Pumping screw for media with higher
viscosity (M7..F)
Recommended applications:
Process industry
Chemical industry
Pulp and paper industry
Water and waste water technology
Shipbuilding
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.
Operating range:
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 = up to 25 mm: ± 1.0 mm
d1 = 28 up to 63 mm: ± 1.5 mm
d1 = from 65 mm: ± 2.0 mm
Materials:
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)
Operational Conditions
| Temperature |
-30ºC to 200ºC, dependent on the elastomer |
| Pressure |
Up to 16 bar |
| Speed |
Up to 20 m/s |
| End play/axial float allowance |
±0.1mm |
| Size |
14mm to 100mm |
| Brand |
JR |
| Face |
Carbon, SiC, TC |
| Seat |
Carbon, SiC, TC |
| Elastomer |
NBR, EPDM, VITON |
| Spring |
SS304, SS316 |
| Metal parts |
SS304, SS316 |
Riscky Li
Website: http://akman2006.en.made-in-china.com
Audited Supplier 
){kind=link}