Mono Epsilon E18B Pump
Spare Parts for Epsilon E18B Pump
Product Summary
The Mono Epsilon E18B is a two-stage progressive cavity pump designed for high-flow industrial applications requiring reliable pumping of viscous fluids and slurries. Featuring advanced flexishaft drive technology and robust construction, this pump delivers exceptional performance in demanding process environments with minimal maintenance requirements.
- Flexishaft Drive Technology: Eliminates traditional universal joints with maintenance-free stainless steel flexishaft design for extended service life and reduced downtime
- Two-Stage High Capacity: Delivers high flow rates up to 97 m³/h while maintaining smooth, pulsation-free operation ideal for process control applications
- Bi-Directional Operation: Unique capability to pump in both directions, providing operational flexibility and system integration advantages
- Superior Self-Priming: Achieves excellent suction lift performance exceeding 8 metres, allowing installation flexibility above liquid sources
- Robust Construction: Available in cast iron or stainless steel with multiple elastomer options to handle diverse fluids including abrasive and corrosive materials
Spare Parts List
| Select | Qty | Part Number | Description | Material / Spec |
|---|---|---|---|---|
| 1 | E18B-KIT-FULL | Complete Rotor/Stator Service Kit | Includes rotor, stator, gaskets | |
| 1 | E18B-KIT-SEAL | Mechanical Seal Service Kit | Complete seal assembly with gaskets | |
| 1 | E18B-KIT-FLEXI | Flexishaft Service Kit | Complete flexishaft assembly with clamps | |
| 1 | 22A | Stator Assembly | Nitrile rubber elastomer - 24.64 kg | |
| 1 | 25A | Rotor Assembly | Stainless steel helical - 33.73 kg | |
| 1 | 32A | Drive Shaft | 85mm diameter, hardened steel - 4.7 kg | |
| 1 | 26A | Flexishaft Assembly | Stainless steel flexible shaft - 7.2 kg | |
| 1 | 10A | Mechanical Seal Assembly | DIN L1K type, 85mm shaft | |
| 1 | 65A | Mechanical Seal Carrier | Cast iron or stainless steel housing | |
| 1 | 27A | Drive Clamp | Flexishaft connection clamp | |
| 2 | 27B | Drive Clamp Pin | Hardened steel retaining pin | |
| 1 | 29C | Shaft Pin | Hardened steel drive pin | |
| 2 | 75A | Shaft Sleeve | Stainless steel protective sleeve | |
| 4 | 95A | Stator Tie Bar | High tensile steel tie rod | |
| 2 | 95B | Suction Chamber Tie Bar | Extension tube tie bar | |
| 1 | 23A | Suction Chamber | Cast iron or stainless steel housing | |
| 1 | 23B | Suction Chamber Extension | Inspection port housing | |
| 1 | 23C | Suction Chamber Extension Tube | Connecting tube section | |
| 1 | 24A | End Cover | Cast iron or stainless steel end plate | |
| 1 | 01A | Pump Body | Cast iron or stainless steel main casing | |
| 1 | 01C | Body Adaptor | Connecting adaptor section | |
| 1 | 42A | Thrower | Shaft protection disc | |
| 1 | 15A | Thrower Guard | Protective cover assembly | |
| 1 | 66A | Abutment Ring | Seal support ring | |
| 1 | 76A | Adaptor Flange | Connection flange adapter | |
| 2 | 62A | Support Foot | Cast iron mounting foot | |
| 1 | 20B | Gland Gasket | Non-asbestos material | |
| 1 | 20C | Suction Chamber Gasket | Non-asbestos material | |
| 1 | P401 | O-Ring Seal | Nitrile rubber toroidal seal | |
| 1 | P402 | O-Ring Seal (Large) | Nitrile rubber toroidal seal | |
| 1 | P403 | Toroidal Seal Ring | Rubber seal ring | |
| 1 | P404 | Toroidal Seal Ring (Secondary) | Rubber seal ring | |
| 8 | P512 | Drive Clamp Bolt | High tensile hex head bolt | |
| 8 | P513 | Clamp Bolt | Stainless steel hex head bolt | |
| 8 | P105 | Hex Nut M12 | Grade 8 stainless steel | |
| 8 | P106 | Flat Washer M12 | Stainless steel bright washer | |
| 8 | P107 | Spring Washer M12 | Single coil spring washer | |
| 1 | BP-LC2 | Bearing Grease | BP Energrease LC2 or Mobilgrease XHP 222 | |
| 1 | LOCTITE-5910 | Thread Sealant | Loctite 5910 for drive shaft assembly |
Exploded Parts Views
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model / Curve | Epsilon E18B / Two-Stage |
| Rated Power | Varies by application (typically 5.5 - 15 kW) |
| Voltage / Frequency | 240V/415V / 50Hz (other voltages available) |
| Rated Current | Application dependent |
| Discharge Connection | Flanged (size varies by application) |
| Impeller Type | Progressive Cavity (Helical Rotor/Stator) |
| Installation Type | Horizontal Baseplate Mounted |
Troubleshooting, Common Faults & Solutions
No Discharge from Pump
Likely Cause: Incorrect rotation direction, pump unprimed, or blocked delivery line
Action / Part: Verify motor rotation matches nameplate arrow (bi-directional capable), prime pump with liquid, clear blockages in discharge pipework
Loss of Capacity / Reduced Flow
Likely Cause: Worn rotor/stator elements, insufficient NPSH, air entering suction line, or belt drive slipping
Action / Part: Replace rotor (25A) and/or stator (22A), increase suction head, check gland adjustment for air leaks, re-tension drive belts
Pump Stalls at Start-Up
Likely Cause: Product viscosity too high, low voltage, or flexishaft damage
Action / Part: Heat product to reduce viscosity, verify electrical supply voltage, inspect flexishaft (26A) for visible damage or distortion
Excessive Noise and Vibration
Likely Cause: Misaligned coupling, worn bearings, or insecure pump mounting
Action / Part: Check and adjust alignment to motor/gearbox, replace shaft bearings (lubricate with BP LC2 grease), tighten all baseplate mounting bolts
Excessive Gland or Seal Leakage
Likely Cause: Worn drive shaft, damaged mechanical seal, or inadequate gland flush
Action / Part: Replace drive shaft (32A) if gland area worn, install new mechanical seal assembly (10A - M065139G), ensure proper seal flush fluid flow
Motor Overheats / Excessive Power Draw
Likely Cause: Delivery pressure above rated limit, gland overtightened, or pump speed too high
Action / Part: Check for delivery line blockages, loosen packed gland to allow slight drip, reduce pump speed, verify relief valve setting
Rapid Stator Wear / Premature Failure
Likely Cause: Dry running, abrasive product, or product temperature exceeding rating
Action / Part: Install dry-run protection device, ensure pump always primed before starting, cool product or upgrade to temperature-rated stator material, replace with new stator (22A)
Flexishaft Failure or Damage
Likely Cause: Excessive torque, visible damage to protective coating, or shaft distortion
Action / Part: Replace flexishaft assembly (26A - 4.4 kg), check drive clamp bolts (P513) are torqued to 10 Nm, apply Loctite 5910 to shaft assembly per manual
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