Stuffing Box
- Accommodates internal or external, single or double, balanced or unbalanced mechanical seals with the required gland connections.
- Back pull-out design provides safe, simple and quick assembly and disassembly.
STM Series
ANSI B73.1 Investment Cast Centrifugal Pump
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STM Series
STM Series pumps are investment-cast, back pull-out, volute-casing and end-suction centrifugal pumps. Their dimensional and design criteria conform to ANSI B73.1. The same stuffing box accommodates single, double, balanced, unbalanced and cartridge mechanical seals.
200 m³/hrMaximum capacity
90 mMaximum head
200°CMaximum temperature
01
Performance
Technical Data
| Operating Frequency | 50 Hz |
|---|---|
| Capacity (Q) | Maximum 200 m³/hr |
| Head (H) | Maximum 90 m |
| Motor Power (P) | Maximum 40 kW |
| Maximum Specific Gravity (SG) | 1.5 |
| Maximum Working Temperature | 200°C |
| Suction & Delivery Connection | ANSI B16.5 – Class 150 |
| Shaft Seal | Single, double and gland packing |
| Bearings | Rolling element bearings |
| Lubrication | Oil |
| Motor Compatibility | IS 1231, IEC 72-1, NEMA |
02
Industries
Applications
- Petrochemical
- Pharmaceutical industries
- Water treatment
- Textile
- Food industries
- Mining
- Refinery
03
Engineering
Construction Features
Shaft & Bearing
- Heavy-duty shaft design for minimum deflection.
- Maximum 0.05 mm deflection at the stuffing box at minimum load.
- Large-capacity oil sump improves heat transfer and bearing life.
- Telescopic arrangement permits semi-open impeller clearance adjustment.
- Double O-ring prevents lubricating-oil leakage.
Volute Casing
- Top-centreline discharge and self-venting volute casing.
- Investment-cast casing with a 10–12 mm thick wall.
- Back pull-out design for easy maintenance.
Impeller
- Hydrodynamically optimized semi-open radial impeller.
- Axial forces are balanced with balancing holes and back vanes.
- Back pull-out design for easy maintenance.
04
Configuration
Mechanical Seal Options
Single PTFE Bellow Seal
Single Pusher Seal
Double Pusher Seal
- Available with single and double mechanical-seal options.
- The stuffing box supports applicable API seal plans.
