TRIPLEX RECIPROCATING PLUNGER PUMPS

For each PREEVOL, pump, the POWER END is engineered out of selected materials and it is designed for the rated horse-power.

Power frame is totally enclosed. Dust and oil tight enclosure eliminating contamination from the outside elements.

Reduced maintenance cost and increased reliability.

Accurately machined and honed for longer life I-section design for rigidity and light weight. Split-bolted marine type crank-pin end for easy assembly and disassembly. Refle-drilled oil passage.

Fully cylindrical crossheads and guides ultilize maximum possible bearing area. Less weat thru greater disbursement of bearing loads. Assures greater reliability with low replacement costs.

Forged hardened and ground crank shaft provides unmatched strength and surface hardness for long life.

Splash type lubrication system for all power and bearing contained within sealed chamber.

Preevol pumps have a proven continuous, heavy-duty peformance record indicating long intervals between servicing. This assures you of the best return on your investment

One of the most cost-efficient ways to ensure extra long life for your high Pressure system is to use a PREEVOL pump with its three-cylinder design. This triplex design gives you much smoother flow (approximately 1/7th the pressure variations of comparable two-cylinder pumps) and minimises the possibility of system failure due to excessive pulsation.

Antifriction steel-tapered roller bearing provide extended bearing life.

The triplex plunger pump performs smoothly and quietly. The natural lubricity of the pumped fluid cools and lubricates the seals. The hardened, polished ceramic coated plunger provide extremely durable wear surfaces, abrasion resistance and maximum seal life.

The stuffing box assemblies are individually bolted to the fluid cylinder for easy accessibility, for disassembly and assembly. Reduced maintenance coasts and downtime.

All valve assemblies are completely independent of and are clamped between manifolds and fluid cylinder. Easy valve inspection and replacement without any clean-up or rematching of mating components.

• Pressure lubrication provided by externally mounted lub oil pump-drive directly off crank shaft end opposite main drive end, or separate motor driven. Recommended for pump speed below 165rpm.
• Overhead motor mounting on pump frame complete with belt adjustment jackscrews.
• V-belt drives or separate gear reducers with couplings and guards are available in a wide range of popular ratios.
• Easily removable steel or plexiglass covers to protect stuffing box compartment in outdoor or dirty,dusty indoor locations.

• Pump mounted mechanical lubricator for plunger packing, lubrication recommended for higher pressure ranges when non lubricating type fluids are being pumped.
• Spring loaded stuffing box packing can be supplied to provide constant plunger sealing pressure, thus eliminating manual packing adjustments.
• Special suction and dischange manifold connections are available to meet special piping and installation re-quirements.
• Suction air chamber for dampening intake pulsations.
• Discharge pulsation dampner
• Discharge safety relief valves.

• PREEVOL's pumps line-up gives more options then any other available. You can get:

• 'V' Belt pulley with electronic motor.
• Direct drive with electric motor / engine / generator.
• 'V' Belt pulley with speed veriotor.
• Gear drive with electric motor.

• Simplex / Duplex / Triplex / Quintuplex.
• Skid-mounted package or bare unit with wide range of optional accessories.
• Maximum parts interchangeability
• Maximum interchangeability of parts between standard models provides added advantage to the customer for maintenance and spare parts availability and stocking.

• AISI – 304, AISI – 316,
• Alloy-20I fastelloy – 'B'or'C'
• Parts consisting of special materials can be specially manufactured against specific needs.
• Available in ceramic coated or Hardchrome plated or colomnoy coating plungers.
• Gland packing flushing, cooling lubrication can also be provided against specific orders.