Stuffing box cover:

Our process pumps are designed with encloses back of causing and contains stuffing box chamber. The Cover is fastened to frame or adopter so that a spare back pull-out assembly can be stocked completely assembled. Cover can be supplied with jacket for cooling stuffing box chamber in high temperature services. Jacket can also be used for heating viscous or high freezing point liquids.

Packed box has five rings of packing and a lantern ring. Quench gland with water tapes and an auxiliary ring of packing is standard. Gland is spilt for easy removal. Tapped openings to lantern ring permit "in" and "out" sealing, external flushing or lubrication as required. Stuffing box is completely machined for mechanical seal installation, either originally or as a field conversion. Inside, outside, unbalanced, balanced, single, double or tandem seals with any required gland, throat bushing, throttle bushing and flushing lines furnished to meet individual sealing problems. Gland completely confines stationary mating ring gasket.

Bearing Frame:

Sturdy cast iron construction of our pumps provides rigid bearing alignment and shaft support. Contains large oil reservoir, with water jacket. Oil level maintained by constant level oiler with water jacket. Oil seals on each end and oil breather fully protect oil from contamination while allowing for expansion or contraction of air caused by ambient 0 temperature change. To handle liquids above 175 C, cast integral cooling chamber is designed for 600 kpa working pressure or 900 kpa test pressure.

Shaft:

Pumps having a single piece shaft is designed for 0.05 mm maximum deflection at stuffing box face. All critical surfaces ground to less than 0.8 micron.

Shaft Sleeve:

Renewable shaft sleeve is positive driven, hook type, with one end free to expand with temperature variations, Teflon (PTFE) gasket prevents leakage under sleeve. Shaft sleeve permits application of inside balanced mechanical seals, where required.

Bearings:

Inboard bearing of pump is pressed on shaft and is free to float axially in frame-carries radial load anly. Outboard bearing is shouldered and locked on shaft with locknut and washer and in bearing housing to carry radial and any unbalanced thrust load. All bearing fits are precision bored. Inboard bearing is single row, deep groove. Outboard bearing is double row, deep groove angular contact. Both bearing are sized for two year minimum life.

Base Plate:

Heavy duty MS Channel base plate with large holes. Only three sizes of base plates accommodate all pumps sizes and all applicable IS or IEC frame size motors.

Coupling:

A standard spacer type coupling is furnished to take full advantage of the back pull-out pump feature. Factory selected coupling from leading manufacturers are supplied unless otherwise specified.

Specification:

Based on ANSI B73.1