Mono Compact C1AB Pump
Spare Parts for Compact C1AB Pump
Product Summary
The Mono Compact C1AB is a heavy-duty two-stage progressive cavity pump engineered for high-volume industrial applications requiring exceptional flow rates and sustained pressure delivery. This premium-grade pump combines robust construction with advanced progressive cavity technology to handle the most demanding continuous-duty pumping requirements across diverse industrial sectors.
- Industrial-Grade Capacity: Large frame two-stage design delivers substantial flow rates with minimal pulsation, ideal for high-throughput applications requiring consistent pressure delivery
- Heavy-Duty Drive Train: 85mm hardened steel shaft with reinforced pin joint system ensures reliable power transmission under demanding continuous operation conditions
- Superior Build Quality: Premium construction with cast iron casing and precision-engineered components provides exceptional durability and extended operational life in harsh industrial environments
- Versatile Application Range: Capable of handling viscous fluids, slurries, and abrasive media with customizable rotor/stator material combinations for specific process requirements
- Service-Friendly Design: Modular construction allows efficient maintenance access with standardized component replacement procedures minimizing downtime during service intervals
Spare Parts List
Item = exploded-diagram reference from the Mono Compact manual (OMMP/032/01). Ordered by pump model + item. This page is for the Mono Compact C1AB. The mechanical seal carries the real OEM part number for this model's shaft size.
| Select | Qty | Item | Part Number | Description | Material / Spec |
|---|---|---|---|---|---|
| 1 | 22A | 22A | Stator (specify elastomer) | C1AB stator 74.4 kg; nitrile std / others to suit fluid | |
| 1 | 25A | 25A | Rotor | C1AB rotor 72.4 kg; hard-chrome / stainless | |
| 1 | 26A | 26A | Coupling Rod | C1AB rod/joint 15.3 kg | |
| 1 | 29A | 29A | Coupling Rod Pin | - | |
| 1 | 29B | 29B | Coupling Rod Pin | - | |
| 1 | 29C | 29C | Shaft Pin | - | |
| 1 | 32A | 32A | Drive Shaft | C1AB shaft 9.5 kg | |
| 1 | 10A | M085139G | Mechanical Seal (DIN L1K, 85mm shaft) | OEM seal M085139G | |
| 1 | 65A | 65A | Mechanical Seal Carrier / Gland Section | - | |
| 1 | 66A | 66A | Abutment Ring | - | |
| 1 | 74A | 74A | Sleeve (Rotor / Shaft) | - | |
| 1 | 74B | 74B | Sleeve (Rotor / Shaft) | - | |
| 1 | 28A | 28A | Sealing Cover | - | |
| 1 | 28B | 28B | Sealing Cover | - | |
| 1 | 01A | 01A | Body (Standard Cast Iron) | - | |
| 1 | 23A | 23A | Suction Chamber | - | |
| 1 | 23B | 23B | Suction Chamber Extension | - | |
| 1 | 24A | 24A | End Cover | - | |
| 1 | 42A | 42A | Thrower | - | |
| 1 | 15A | 15A | Thrower Guard | - | |
| 1 | 62A | 62A | Support Foot | - | |
| 1 | 20B | 20B | Gasket - Gland | Non-asbestos | |
| 1 | P401 | P401 | Toroidal Seal Ring | - | |
| 1 | P402 | P402 | Toroidal Seal Ring | - | |
| 1 | P403 | P403 | Spiral Retaining Ring | - | |
| 1 | P404 | P404 | Spiral Retaining Ring | - | |
| 1 | P405 | P405 | Tie - Sealing Cover | - | |
| 1 | P406 | P406 | Tie - Sealing Cover | - | |
| 1 | 95A | 95A | Stator Tie Rod | - | |
| 1 | P104 | P104 | Hex Head Bolt | - | |
| 1 | P105 | P105 | Hex Nut | - | |
| 1 | P106 | P106 | Washer | - | |
| 1 | P107 | P107 | Single Coil Spring Washer | - | |
| 1 | P109 | P109 | Hex Nut | - | |
| 1 | P201 | P201 | Taper Plug | - | |
| 1 | P202 | P202 | Taper Plug | - | |
| 1 | P203 | P203 | Hex Socket Setscrew | - | |
| 1 | P509 | P509 | Toroidal Seal Ring | - | |
| 1 | P510 | P510 | Toroidal Seal Ring | - |
Item references are from the OEM manual for identification only; weights are guidance per the manual and exact build (stage count, quantities, gland packing vs mechanical seal) is confirmed at quote. Some references may not appear on every build. Associated washers/nuts and lubricants are available per the manual on request.
Exploded Parts Views
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model / Curve | Compact C1AB / Two-Stage |
| Rated Power | Varies by application (typically 11 - 22 kW) |
| Voltage / Frequency | 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
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