NMBD

NMBD

NMBD  
inches

D

DA

LB

LB

H

MAX DIA

MIN DIA

MAX LEN

MIN

a

b

c

1.000

4.130

1.750

1.880

2.030

2.060

2.900

3.630

3.630

1.125

4.250

1.750

1.880

2.030

2.060

2.900

3.630

3.630

1.250

4.250

2.000

2.130

2.060

2.130

3.020

3.630

3.630

1.375

4.250

2.000

2.190

2.060

2.030

3.250

3.630

3.630

1.500

4.500

2.250

2.380

2.250

2.130

3.500

3.630

3.630

1.625

5.000

2.380

2.500

2.210

2.130

3.560

3.690

3.630

1.750

5.500

2.500

2.560

2.340

2.130

3.630

3.750

3.630

1.875

5.500

2.630

2.690

2.340

2.130

3.750

3.880

3.630

2.000

5.500

2.750

2.940

2.340

2.130

4.010

4.130

3.630

2.125

6.000

3.000

3.190

2.400

2.130

4.250

4.380

4.500

2.250

6.250

3.130

3.190

2.400

2.130

4.250

4.380

4.500

2.375

6.250

3.250

3.440

2.310

2.250

4.380

4.500

4.630

2.500

6.500

3.380

3.440

2.410

2.190

4.560

4.810

4.810

DESCRIPTION:

NMBD DOUBLE METAL BELLOW CARTRIDGE SEAL

OPERATIONAL CONDITIONS:

  • TEMPERATURE:-20℃ TO +450℃
  • PRESSURE: ≤2.5 MPA
  • SPEED:≤ 25 M/S

MATERIALS:

  • STATIONARY RING: SILICON CARBIDE REACTION BONDED, SILICON CARBIDE SINTERED, NI-BINDER TUNGSTEN CARBIDE, CO-BINDER TUNGSTEN CARBIDE
  • ROTARY RING: RESIN IMPREGNATED CARBON, ANTIMONY CARBON, SILICON CARBIDE SINTERED, SILICON CARBIDE REACTION BONDED, TUNGSTEN CARBIDE, NI-BINDER TUNGSTEN CARBIDE
  • SECONDARY SEAL:NITRILE (NBR), ETHYLENE PROPYLENE (EPDM), FLUOROCARBON RUBBER (VITON),FFKM , GARFOIL PACKING

APPLICATIONS:

  • HIGH TEMPERTURE, HIGH VACUUM,  
  • PETRO CHEMICLS.HYDROCARBONS