Serie 4300F

Armstrong Vertical Fire Pumps

• High Working Pressure

Casing is high grade cast iron suitable for 250 psi maximum working pressure and 400 psi hydrostatic test.

• Minimum Axial Thrust

Impeller is bronze enclosed type, hydraulically balanced.

• Vibration-Free Operation

Impeller is dynamically balanced according to UL requirements.

• Low Cost Maintenance

Replaceable bronze wearing rings.

• Corrosion Resistant Protection at Stuffing Box

Non-corrosive shaft sleeve is heated and shrunk-fit on motor shaft for lifetime fitting.

1. UL/FM pumps are furnished with packed gland complete with an external flush line to the lantern ring.

• Double Volute Casing

Minimum Shaft Deflection

1. 4" x 3", 6" x 4" and 6" x 5" pumps have a double volute to reduce shaft deflection and prolong seal life.

• Minimum Fittings
1. 3-1/2" (89 mm) compound Suction Gauge with isolating valve.
2. 3-1/2" (89 mm) Discharge Pressure Gauge with isolating valve.
3. Casing Relief Valve.

• Other Fittings and Accessories:
1. Concentric Discharge Increaser.
2. Eccentric Suction Reducer.
3. Fire Pump Controller.
4. Automatic Transfer Switch.
5. Jockey Pump.
6. Jockey Pump Controller.
7. Flow Meter.
8. Test Header, Hose Valves & Ball Drip Valve.
9. Main Relief Valve with Waste Cone.
10. Supervisory Valve Switches

• Space Saving
1. Valuable savings in floor space.
2. Ideal when space is at a premium.
3. Fits through a standard door.
4. Ideal for retrofit installations.
5. Fits in spaces not normally accessible to other fire pumps.
6. Alignment problems eliminated.

• Cost Saving
1. Less installation time.
2. Simplified piping design.
3. Foundations not required.
4. Inertia base not required.
5. Flexible connections not required.
6. One unit responsibility.