NTB Water Pump (AL95, ZAS, STEATITE, AL75) & Chemical Pump (AL995) Ceramic Seal Faces
"Alumina" was one of the first hard non metallic materials used in mechanical seals. Mechanical seals with Alumina/Carbon-Graphite mating faces are completely maintenance free, ensure minimum loss, provide longer life & additionally offer greater operating safety. NTB AL95 is used in automotive, industrial & residential water pumps. NTB AL995 is better suited to higher P-V & chemically aggressive duty. NTB offers cost effective Steatite, ZAS & AL75 seal faces for low horse power pumps. NTB Seals are double side lapped & are polished within 1-2 light bands.
Standard Dimensions of NTB CERATUFF Water Pump Seal Faces
Drg. No. |
O.D. mm |
I.D. mm |
Height,
mm |
Drg. No. |
O.D. mm |
I.D. mm |
Height,
mm |
SP/A/072 |
21.10 |
12.80 |
5.60 |
SP/A/049 |
28.00 |
18.00 |
4.00 |
SP/A/034 |
22.60 |
13.30 |
6.40 |
SP/A/078 |
28.05 |
16.90 |
8.00 |
SP/A/066 |
23.00 |
14.00 |
4.00 |
SP/A/031 |
30.00 |
20.30 |
7.80 |
SP/A/091 |
27.10 |
18.15 |
5.45 |
SP/A/068 |
31.00 |
20.00 |
7.60 |
SP/A/065 |
27.20 |
17.00 |
4.00 |
SP/A/067 |
34.29 |
20.57 |
6.35 |
Standard Dimensions of NTB CERATUFF Chemical Seal Faces
Nominal Size |
D.A. TYPE |
L. TYPE |
T. TYPE |
A |
B |
C |
A |
B |
C |
A |
B |
C |
D |
1” |
40.0 |
26.5 |
13.3 |
40.1 |
26.0 |
11.9 |
51.4 |
24.5 |
22.0 |
43.0 |
1 1/8” |
41.6 |
30.0 |
13.1 |
43.1 |
29.0 |
11.9 |
57.3 |
27.4 |
24.0 |
46.0 |
1 ¼” |
47.9 |
33.0 |
13.1 |
48.1 |
33.0 |
11.9 |
60.1 |
30.7 |
30.0 |
52.0 |
1 3/8” |
51.1 |
36.5 |
13.1 |
50.1 |
36.0 |
11.9 |
66.4 |
34.4 |
30.0 |
56.0 |
1 ½” |
54.3 |
39.5 |
13.1 |
56.1 |
39.0 |
12.9 |
69.3 |
37.3 |
30.0 |
60.0 |
1 5/8” |
57.5 |
42.8 |
13.1 |
61.1 |
44.0 |
12.9 |
74.7 |
40.6 |
30.0 |
64.0 |
1 ¾” |
60.6 |
46.0 |
13.1 |
63.1 |
46.0 |
12.9 |
76.3 |
43.5 |
30.0 |
68.0 |
1 7/8” |
64.5 |
49.5 |
13.1 |
66.1 |
48.0 |
12.9 |
82.1 |
46.8 |
30.0 |
72.0 |
|
