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HMP Manufacturing & Services Pvt. Ltd.
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Product Features |
| Capability: |
As per the buyer's specifications |
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| Description: |
Casting
- Top centerline discharge, self-venting casing, arranged for back pull-out.
- Fully confined gasket.
- Full support under casing for maximum resistance to misalign and distortion from pipe loads ASA-150 Ib flanges standard, 300 Ib optional for working pressure to 26 kg/cm2 with 3 mm corrosion allowance.
- For maximum corrosion-erosion resistance casing is supplied without tapped openings, but gauge and drain plug openings are provided when specified.
Impeller
- Impeller matched to casing for high efficiency and low NPSH.
- Fully open, has partial shrouds for maximum vane support without high thrust inherent in closed impellers.
- Stuffing box pressure reduced and entrance of solids prevented by back pump out vanes. Large smoothly contoured flow passages combine best slurry and solids handling ability.
- Impeller is screwed on shaft, and threads are sealed by PTFE O-ring. This eliminates projecting impeller nut and exposed threads from impeller eye.
- All impellers are statically and dynamically balanced.
Stuffing Box Cover
- Stuffing box cover encloses back of casing, and contains stuffing box chamber. The cover is fastened to frame or adapter 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 temperatures services. Jacket can also be used for heating viscous or high freezing point liquids.
- Packed box has live rings of packing and a lantern ring. Quench gland with water taps and an auxiliary ring of packing is standard. Gland is split for easy removal.
- Tapped openings to the lantern ring permit "in and out" sealing, external flushing or lubrication or lubrication as required.
- Stuffing box is completely machined for mechanical seal installation, either originally of as a field conversion. Inside, outside, unbalanced, balanced, single or double seals, with and required gland, throat bushing, throttle bushing and flushing lines furnished to meet individual sealing.
- Gland completely confines stationary mating ring gasket.
Frame Adapter
- Heavy cast iron construction and precision machine to keep bearing frame and casing in perfect alignment.
- Furnished with lifting eyebolt for ease in maintenance.
- Open construction gives easy access to the stuffing box area.
- Either frame adapter or drip tray may be piped to drain.
Bearing Frame
- The bearing frame provides rigid bearing alignment and shaft support. It contains large oil reservoir, oil level is maintained at proper level by means of a constant level oiler with visible oil supply. Oil breather vent fully protects oil from contamination while allowing for expansion or contraction of air caused by ambient temperature change.
- Massive bearing frame foot-support is fitted with jack bolts allowing pump alignment without the use of shims.
- For pumping temperature above 1750C standard water-jacketed bearing frame is provided.
- Cast integral water-cooling chamber is designed for 5.5 kgf/cm2 working pressure or 8.56 kgf/ cm2 test pressure.
Shaft and Shaft Sleeve
- A single piece shaft is designed for 0.05mm maximum deflection at stuffing box face, under the worst conditions of shut off head.
- Renewable shaft sleeves are positively driven; PTFE O-ring prevents leakage under sleeve.
- All critical surfaces of the shaft and shaft sleeves ground to less than 0.8micron.
Bearings
- Inboard bearing is pressed on shaft and is free to float axially in frame, to carry radial load only. Inboard bearing is single row, deep groove.
- Outboard bearing is shouldered and locked on shaft and in bearing housing to carry radial any unbalanced thrust load, All bearing fits are precision bored. Outboard bearing is double row, deep groove, and angular contact.
- Both radial and thrust bearings are sized for minimum two-year life.
Base Plate
- Cast iron drip rim type with large beaded grout holes.
- Only 3 sizes of base plates accommodate all pump 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 pullout features.
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