Seal Proof Engineering
Technical datasheet
Mechanical Shaft Seals
Boiler Feed Water Seals
Balanced, inside-mounted seal for boiler feed, condensate, booster and fuel oil pumps.
Description
A single-acting, balanced, inside-mounted seal dependent on direction of rotation, for boiler feed water and associated hot-water and oil pump duties.
Faces are supplied in carbon, ceramic, silicon carbide or tungsten carbide with SS 316 or SS 304 metal parts and elastomer secondary seals. API plan 23 is referenced for the flush arrangement.
Specifications
| Seal characteristics | Single acting · Balanced · Inside mounted · Dependent of direction of rotation |
|---|---|
| Temperature t | -20°C to +250°C (API plan 23) † provisional |
| Shaft diameter d | 65 … 150 mm |
| Pressure p | 50 … 140 bar (max) |
| Velocity v | more than 50 m/sec |
| Standard referenced | API plan 23 |
Summary envelope: shaft 65–150 mm · pressure to 140 bar
Materials of construction
- Face materials: Carbon / Ceramic / Silicon Carbide / Tungsten Carbide
- Metal parts: SS 316, SS 304
- Secondary seal: Elastomers
Applications
- Boiler feed water pumps
- HSD pumps
- Booster pumps
- Drip pumps
- Condensate pumps
- Fuel oil pumps