Self-supporting graphite rotating joints (Double bearings)  
 
     
 
 
Main Features

 

1)

Self-support by means of TWO GRAPHITE BEARINGS amply spaced out

2)

Seal Ring is made of impregnated graphite and works in COMPRESSION (the compression strength of graphite is approx 5 TIMES greater than the corresponding tension strengh).

3)

VISUAL indication of the amount of wear and the seal ring.

4)

Simple and immediate maintenance.

   

Also available

Single Flow Joints - Series NB

 

Dual-Flow Joints - Series NF

Screwed LH and RHand Flanged and ball race units

 
 
Size
Max Operating Pressure BAR (PSI)
Wear
Cold Water
Stream
Hot oil
X=mm (inch)

NB 075

35 (500)

18 (260)

7 (100)

4 (0.157)

NB 100

35 (500)

18 (260)

7 (100)

5 (0.197)

NB 125

35 (500)

18 (260)

7 (100)

5 (0.197)

NB 150

35 (500)

18 (260)

7 (100)

5 (0.197)

NB 200

28 (400)

16 (230)

5 (72)

7 (0.276)

NB 250

28 (400)

16 (230)

5 (72)

7 (0.276)

NB 300

28 (400)

16 (230)

5 (72)

8 (0.315)

NB 400

20 (290)

14 (200)

4 (58)

8 (0.315)

NB 500

20 (290)

14 (200)

4 (58)

10 (0.394)

NB 600

18 (260)

12 (170)

3 (43)

13 (0.512)

NB 800

18 (260)

12 (170)

3 (43)

16 (0.630)