Raja Seals
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ProductsThe company started the production of Water Pump seals in 1986 under the brand name of "RAJA". Today, almost two decades of experience and expertise resulted in the familiarity and popularity of the brand among OEM and spare market. And now, the company is a leading manufacturer and wholesale suppliers of mechanical pump seals.
ProductsRaja's Mechanical Seals are mainly designed to suit most of the monoblock Water Pumps. They are very durable and consist of high quality (CY2C equivalent) carbon and high Alumina ceramic seal faces.
The high Alumina ceramic (95%) and Carbon seal faces are flush lapped to a flatness within 2 light Bands to have a good sealing effect. Thorough quality checks are carried out to ensure the fine quality of products.
Products manufactured by us include:
Open Type Mechanical Seals
Close Type Mechanical Seals
F Type Mechanical Seals
Carbon Thrust Bearing

Open Type Mechanical Seals Top
Open Type Mechanical Seals
Cross Section
OpenType Mechanical Seals Cross Section - Open Type Mechanical Seals
  Click for Enlarge View
Open Type or RC Type Mechanical seals are used in widely in Monoblock as well as Jet Pumps. The design is such that individual worn out parts in this seal can be replaced. Modularity and more load bearing capacity are the advantages of this design.
Open Type (RC) – Dimension Chart
Item Description Shaft (ID)
d1 +0.02
Total Length (L1) ± 0.2 Ceramic Cup OD( d2) ± 0.2 Stationary Seal Height (L2) ± 0.1
Housing Machining Size ± 0.05
RC 12
12
22.00
25.70
6.00
25.40
RC 12 (H)
12
26.50
25.70
6.00
25.40
RC 14
14
33.00
32.00
10.00
31.60
RC 16 (B)
16
29.50
30.00
7.50
29.60
RC 16
16
32.50
32.00
10.00
31.60
RC 18
18
33.00
37.00
9.50
36.50
RC 19 (S)
19
33.00
35.00
9.50
34.50
RC 19 (T)
19
33.00
37.00
9.50
36.50
RC 19 (Tx)
19
34.00
35.25
9.50
34.50
19 K
19
33.00
36.50
10.00
36.00
RC 22
22
35.00
41.50
8.50
41.00
RC 25 (S)
25
35.00
41.50
8.50
41.00
RC 25 (T)
25
35.00
42.00
8.50
41.50
RC 28
28
40.00
48.00
10.50
47.50
RC 30
30
40.00
52.00
10.50
51.50
RC 32
32
40.00
52.00
10.50
51.50

Close Type Mechanical Seals Top
Close Type Mechanical Seals
Cross Section
Close Type Mechanical Seals Cross Section -  Close Type Mechanical Seals
  Click for Enlarge View
Closed type or DRL type mechanical seals are used only in monoblock pumps. Since the monoblock pumps are subjected to low head pressure than jet pumps, these types of seals satisfy the required functional needs. These types of seals are used in pumps which have compact space in the housing chamber.

Close Type (DRL) – Dimension Chart

Item Description Shaft (ID)
d1
+0.02
Total Length (L1) ± 0.2 Ceramic Cup OD( d2) +0.2 Stationary Seal Height (L2) ± 0.1
Housing Machining Size ± 0.05
DRL 8
8
20.50
20.00
7.00
19.60
DRL 10
10
23.00
25.70
8.00
25.40
DRL 12 (T2 - White)
12
24.00
25.70
8.00
25.40
DRL 12 (T2 - Pink)
12
24.00
25.70
8.00
25.40
DRL 14
14
25.00
30.00
7.50
29.60
DRL 16
16
27.50
32.00
10.00
31.60
DRL 16 (054)
16
25.00
30.00
7.50
29.60
DRL 18.5
18.5
29.00
37.00
9.50
36.50
DRL 19
19
29.00
37.00
9.50
36.50
DRL 25
25
27.00
41.50
9.00
41.00
DRL 28
28
28.50
52.00
11.00
51.50
DRL 32
32
27.00
52.00
10.50
51.50

F Type Mechanical Seals Top
F Type Mechanical Seals
Cross Section
F Type Mechanical Seals Cross Section - F Type Mechanical Seals
  Click for Enlarge View
The F Type seal is used in lieu of RC Type where cost is a factor. This seal withstands less load than the RC Type seals. F Type can be used in monoblock pumps where RC Type might be expensive.
F Type - Dimension Chart
Item Description Shaft (ID)
d1
+0.02
Total Length (L1) ± 0.2 Ceramic Cup OD( d2) + 0.2 Stationary Seal Height (L2) ± 0.1
Housing Machining Size ± 0.05
12 FS
12
24.00
25.70
8.00
25.40
12 FG (Pink)
12
22.00
25.70
6.00
25.40
12F (T3)
12
29.00
25.70
8.50
25.40
16 FG
16
33.00
30.00
7.50
29.60
16 F
16
34.50
32.00
10.00
31.60
19 F
19
33.00
35.00
9.50
34.50

Carbon Thrust Bearing

Carbon Thrust Bearing
Carbon Thrust Bearing
Carbon Thrust Bearing Carbon Thrust Bearing

Carbon thrust bearings are widely used in submersible pumps. They come in variety of sizes and design based on the requirement. Our design is made to suit the general design in the market and also specifically engineered for selected OEM’s. We are currently manufacturing thrust bearings for V4 and V6 submersible pumps.
Model Shaft Dia Segment Nomenclature Carbon Material Segment Material
V4 Thrust Bearing
15 mm
3 Segments
CY10C
AISI 420
V6 Thrust Bearing
25 mm
3 Segments
CY10C
AISI 420
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