Mono Epsilon E16B Pump

Spare Parts for Epsilon E16B Pump

This page lists replacement and compatible spare parts for Mono pumps.
Pump Spares Direct is an independent supplier and is not affiliated with, endorsed by, or authorised by Mono.

Image shown for pump identification purposes only.

Product Summary 

The Mono Epsilon E16B is a premium two-stage progressive cavity pump featuring advanced flexishaft drive technology for superior performance in demanding industrial applications. Engineered for exceptional reliability and efficiency, this pump delivers smooth, continuous flow with minimal pulsation across a wide range of viscosities.

  • Flexishaft Drive System: Innovative flexible shaft technology eliminates the need for universal joints, reducing maintenance requirements and extending operational life significantly
  • Bi-Directional Operation: Unique capability to pump in either direction provides exceptional installation flexibility and process control options
  • Two-Stage Design: Enhanced pressure capabilities through dual-stage configuration delivers superior performance for high-pressure applications up to 12 bar
  • Suction Excellence: Achieves exceptional suction lift beyond 8 metres, enabling flexible positioning above product level for convenient maintenance access
  • Material Versatility: Available in cast iron or stainless steel construction with multiple elastomer options to suit diverse chemical compatibility requirements

DOWNLOAD DATASHEET

Spare Parts List

Select the required parts below to include them in your quote request.

Select Qty Part Number Description Material / Spec
1 E16B-KIT-FULL Complete Rotor/Stator Service Kit Includes rotor, stator, gaskets
1 E16B-KIT-SEAL Mechanical Seal Service Kit Complete seal assembly with gaskets
1 E16B-KIT-FLEX Flexishaft Service Kit Complete flexishaft assembly with clamps
1 22A Stator Assembly Nitrile rubber elastomer - 21.49 kg
1 25A Rotor Assembly Stainless steel helical - 15.44 kg
1 26A Flexishaft Assembly Stainless steel flexible drive - 3.7 kg
1 32A Drive Shaft 65mm diameter, hardened steel - 4.3 kg
1 10A Mechanical Seal Assembly DIN L1K type, 65mm shaft
1 65A Mechanical Seal Carrier Gland section housing
1 27A Drive Clamp Flexishaft to rotor coupling
2 27B Drive Clamp Pin Hardened steel retaining pin
1 29C Shaft Pin Hardened steel
2 75A Sleeve Stainless steel protective sleeve
4 95A Stator Tie Bar High tensile steel tie rod
1 23A Suction Chamber Cast iron or stainless steel housing
1 23B Suction Chamber Extension Inspection port housing
1 24A End Cover Cast iron or stainless steel end plate
1 01A Pump Body Main casing assembly
1 42A Thrower Shaft protection disc
1 15A Thrower Guard Protective cover assembly
1 66A Abutment Ring Seal support ring
2 62A Support Foot Cast iron mounting foot
1 76A Adaptor Flange Body adaptor connection
1 20B Gland Gasket Non-asbestos material
1 20C Suction Chamber Gasket Non-asbestos material
2 P401 Toroidal Seal Ring Nitrile rubber O-ring
2 P402 Toroidal Seal Ring (Large) Nitrile rubber O-ring
2 P403 Toroidal Seal Ring (Medium) Nitrile rubber O-ring
2 P404 Toroidal Seal Ring (Small) Nitrile rubber O-ring
8 P513 Drive Clamp Bolt High tensile hex head bolt
8 P512 Spring Washer Single coil spring steel
8 P105 Hex Nut M12 Grade 8 steel
8 P106 Flat Washer M12 Bright steel
8 P107 Spring Washer M12 Single coil spring steel
2 P201 Taper Plug Threaded inspection plug
2 P202 Taper Plug (Drain) Threaded drain plug
1 BP-LC2 Bearing Grease BP LC2 / Mobilgrease XHP 222 equivalent
1 LOCTITE-5910 Thread Sealant Loctite 5910 for shaft assembly

OEM part numbers are referenced for identification purposes only.
All parts listed are suitable for use in Mono Epsilon E16B pumps.

Exploded Parts Views 

Exploded view shown for reference only. Part numbering may vary by configuration.

Key Technical Specifications 

Parameter Value
Model / Curve Epsilon E16B / Two-Stage
Rated Power Varies by application (typically 4.0 - 11 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, prime pump with liquid, clear blockages in discharge pipework

Loss of Capacity / Reduced Flow

Likely Cause: Worn rotor/stator elements, insufficient NPSH, or air entering suction line

Action / Part: Replace rotor (25A) and/or stator (22A), increase suction head, check gland adjustment and pipe joints for air leaks

Pump Stalls at Start-Up

Likely Cause: Product viscosity too high, low voltage, or drive train failure

Action / Part: Heat product to reduce viscosity, verify electrical supply voltage, inspect coupling rod (26A) and pin joints (29A, 29B, 29C) for damage

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), 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)

Stuffing Box Rapidly Consumes Packing

Likely Cause: Worn shaft surface in packing area

Action / Part: Inspect drive shaft (32A) for wear grooves, replace shaft if gland area damaged, ensure regular gland maintenance schedule

Online Resources

Alt image
Request for Quotation

Request for Quotation

Thank you!

Your Request for Quote has been successfully sent.
Our team is reviewing your requirements and will be in touch shortly.

Selected Parts:

  • No parts selected
Please enter your full name
Please enter your company name
Please enter a valid email address
Please enter your phone number

Drag & drop image here or click to browse

Accepted formats: JPG, PNG, PDF (Max 5MB)

File size must be less than 5MB
Please select delivery urgency
Please select delivery location
Note on Minimum Orders: A standard minimum order value (MOV) of $1,000 AUD typically applies to process B2B commercial orders efficiently.

We typically respond within 24 hours