Mechanical seal R-680

Shaft seal R-680 (676/670/680) – single, balanced, with a metal welded bellows of a special self-cleaning design that prevents clogging of the springs and removes the need for external flushing. Mechanical mechanical seal type R-680 is resistant to corrosion in aggressive environments with a large number of suspended particles. It is intended for use in chemical, tap and waste water, pulp and paper and municipal industries. The O-ring has no compensation function, so the bellows can move without moisture.

Application: Hydro-Vacuum, KSB, KS, A1, H1B, ONL, NC, ONC, AH, HM, HMs, D, NSD, ONC, 2BV, NPS, SNC, H.

Type: John Crane 680, Chesterton 886, Latty B17, Lidering LMB85.

Temperature: -20+200 °C

Pressure: ≤2,5 MPa

Speed: ≤25 m/s

Materials:

• Rotary ring: SiC/CAR/TC;
• Stationary ring: SiC/TC;
• Bellows: VITON/PTFE;
• Spring: SS304/SS316;
• Metal parts: AISI316L/AM350/Titanium/Hastelloy-C/AIIoy-20.