Mono EZstrip Z1BA / Z1BK Pump
Spare Parts for EZstrip Compact Z1BA / Z1BK Pump
Product Summary
The Mono EZstrip Z1BA / Z1BK progressive cavity pumps represent the pinnacle of heavy-duty industrial pumping technology for the most demanding municipal and industrial applications. Featuring robust split-design construction with pin joint drive, these flagship models deliver exceptional high-volume performance with the innovative EZstrip quick-change system for minimal downtime in critical operations.
- Maximum Capacity Performance: Largest models in the EZstrip range delivering 165-225 m³/h flow rates, engineered for the most demanding wastewater treatment, mining, and heavy industrial applications
- EZstrip Rapid Maintenance: Revolutionary split coupling rod and suction chamber design enables complete rotor/stator replacement without motor disconnection, reducing downtime by up to 75% in critical continuous operations
- Heavy-Duty Industrial Construction: Reinforced cast iron or stainless steel design with oversized components built for continuous operation in the harshest abrasive slurries, mining tailings, and industrial waste applications
- Dual Configuration Options: Available as two-stage (Z1BA) for maximum pressure capability or extended-pitch single-stage (Z1BK) for optimized high-volume low-pressure applications
- Superior Solids Handling: Exceptional suction lift exceeding 8 metres with robust solids-handling capability, ideal for thick sludges, mining slurries, and heavily-laden industrial waste streams
Spare Parts List
| Select | Qty | Part Number | Description | Material / Spec |
|---|---|---|---|---|
| 1 | Z1BA-KIT-FULL | Complete Rotor/Stator Service Kit (Z1BA) | Two-stage kit with gaskets | |
| 1 | Z1BK-KIT-FULL | Complete Rotor/Stator Service Kit (Z1BK) | Extended pitch kit with gaskets | |
| 1 | Z1B-KIT-SEAL | Mechanical Seal Service Kit | Complete seal assembly with gaskets | |
| 1 | Z1B-KIT-PIN | Pin Joint Service Kit | Complete joint assembly with pins | |
| 1 | 22A | Stator Assembly | Nitrile rubber - Z1BA: 64.5 kg / Z1BK: 122.9 kg | |
| 1 | 25A | Rotor Assembly | Stainless steel - Z1BA: 68.1 kg / Z1BK: 126.8 kg | |
| 1 | 26B | Split Coupling Rod (Rotor Side) | Pin joint type - 15.3 kg | |
| 1 | 26C | Split Coupling Rod (Shaft Side) | Pin joint type - hardened steel | |
| 1 | 26D | Coupling Rod Sleeve Halves Assembly | Split sleeve design for EZstrip | |
| 1 | 32A | Drive Shaft | 85mm diameter, hardened steel - 9.5 kg | |
| 1 | 10A | Mechanical Seal Assembly | DIN L1K type, 85mm shaft (M085139G) | |
| 1 | 65A | Mechanical Seal Carrier | Cast iron housing | |
| 1 | 27A | Coupling Rod Bush | Hardened steel | |
| 1 | 27B | Coupling Rod Bush (Drive End) | Hardened steel | |
| 2 | 29A | Coupling Rod Pin | Hardened steel | |
| 2 | 29B | Coupling Rod Pin (Drive End) | Hardened steel | |
| 1 | 29C | Shaft Pin | Hardened steel | |
| 1 | 28A | Sealing Cover (Suction End) | Rubber boot seal | |
| 1 | 28B | Sealing Cover (Drive End) | Rubber boot seal | |
| 1 | 75A | Rotor/Shaft Sleeve | Stainless steel protective sleeve | |
| 1 | 75B | Rotor/Shaft Sleeve (Secondary) | Stainless steel protective sleeve | |
| 4 | 95A | Stator Tie Rod | High tensile steel tie rod | |
| 1 | 23A | Suction Chamber | Cast iron housing | |
| 1 | 23C | Suction Chamber Extension Flange (Stator Side) | Cast iron flange | |
| 1 | 23D | Suction Chamber Extension Piece (Drive Side) | Cast iron extension | |
| 2 | 23E | Suction Chamber Halves | Split design for EZstrip access | |
| 1 | 24A | End Cover | Cast iron end plate | |
| 1 | 01A | Pump Body | Cast iron main casing | |
| 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 | 20B | Gland Gasket | Non-asbestos material | |
| 1 | 20C | Coupling Sleeve Gasket | Non-asbestos material | |
| 2 | 20D | Suction Chamber Half Gasket | Non-asbestos material | |
| 2 | P401 | Seal Ring | Toroidal seal ring | |
| 2 | P402 | Seal Ring (Large) | Toroidal seal ring | |
| 2 | P403 | Spiral Retaining Ring | Spring steel | |
| 2 | P404 | Spiral Retaining Ring (Secondary) | Spring steel | |
| 2 | P405 | Sealing Cover Tie | Stainless steel band | |
| 2 | P406 | Sealing Cover Tie (Drive End) | Stainless steel band | |
| 8 | P301 | Socket Cap Screw (Coupling Rod) | High tensile socket head | |
| 8 | P540 | Socket Cap Screw (Suction Chamber) | High tensile socket head | |
| 8 | P541 | Hex Nut (Socket Cap Screw) | Grade 8 steel nut | |
| 8 | P105 | Hex Nut | Grade 8 steel nut | |
| 16 | P106 | Flat Washer | Bright steel washer | |
| 16 | P107 | Spring Washer | Single coil spring washer | |
| 4 | P516 | Stud (Suction Chamber) | High tensile threaded stud | |
| 8 | P518 | Flat Washer (Stud) | Bright steel washer | |
| 8 | P519 | Spring Washer (Stud) | Single coil spring washer | |
| 4 | P520 | Hex Nut (Stud) | Grade 8 steel nut | |
| 1 | P526 | Taper Plug | Pipe thread plug | |
| 1 | P528 | Taper Plug (Secondary) | Pipe thread plug | |
| 1 | P539 | Seal Ring (Drive Shaft) | Toroidal seal ring | |
| 1 | KLUBER-GH6 | Joint Lubrication Oil | Klübersynth GH6-460 (175ml per joint) | |
| 1 | BP-LC2 | Bearing Grease | BP Energrease LC2 or equivalent |
Exploded Parts Views
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model / Curve | EZstrip Z1BA (Two-Stage) / Z1BK (Extended Pitch) |
| Capacity Range | 165-225 m³/h @ 350 rpm |
| Rated Power | Varies by application (typically 22 - 55 kW) |
| Voltage / Frequency | 415V / 50Hz (other voltages available) |
| 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 drive train breakage
Action / Part: Verify motor rotation (anti-clockwise gives inlet at drive end), prime pump with liquid, inspect split coupling rod halves (26B, 26C) and pin joints (29A, 29B, 29C) for damage
Loss of Capacity / Reduced Flow
Likely Cause: Worn rotor/stator elements, insufficient NPSH, air entering supply line, or relief valve chattering
Action / Part: Replace rotor (25A: 68.1-126.8 kg) and/or stator (22A: 64.5-122.9 kg) using EZstrip quick-change procedure, increase suction head, check split suction chamber halves (23E) gaskets (20D) for air leaks
Pump Stalls at Start-Up
Likely Cause: Product viscosity exceeds rated level, low voltage supply, or discharge blockage
Action / Part: Heat product to reduce viscosity, verify electrical supply voltage is correct (415V for this size), clear discharge line obstructions, reverse pump to relieve pressure
Excessive Noise and Vibration
Likely Cause: Coupling misalignment, insecure pump mounting, or shaft bearing failure
Action / Part: Check alignment of split coupling rod assembly to motor/gearbox, tighten all support foot (62A) mounting bolts to 176 Nm, inspect and replace shaft bearings if worn (lubricate with BP LC2 grease every 12 months)
Excessive Gland or Seal Leakage
Likely Cause: Worn drive shaft, damaged mechanical seal, or inadequate gland flushing
Action / Part: Replace drive shaft (32A: 9.5 kg, 85mm diameter) if gland area shows wear grooves, install new mechanical seal assembly (10A) with setting distance 58.0mm, ensure proper seal flush fluid flow
Motor Overheats / Excessive Power Consumption
Likely Cause: Delivery pressure exceeds rated limit, gland overtightened, pump speed too high, or coupling misalignment
Action / Part: Check for delivery line blockages, loosen packed gland to allow slight drip (6 drops/minute for 125-160mm shaft), reduce pump speed, verify split coupling rod alignment and torque (75 Nm on P301 screws)
Rapid Stator Wear / Premature Failure
Likely Cause: Dry running, abrasive product, product temperature exceeding rating, or stator turning in housing
Action / Part: Install dry-run protection device (mandatory for this pump size), ensure pump always primed before starting, cool product or upgrade to temperature-rated stator, tighten stator tie rods (95A) to 120 Nm torque
Pin Joint Wear / Failure
Likely Cause: Inadequate lubrication, excessive vibration, or worn coupling rod bushes
Action / Part: Inspect and lubricate joints every 4000 hours with Klübersynth GH6-460 Oil (175ml per joint - critical for this pump size), replace coupling rod pins (29A, 29B, 29C), bushes (27A, 27B), and sealing covers (28A, 28B) if worn
Difficulty with EZstrip Rotor/Stator Replacement
Likely Cause: Incorrect disassembly sequence, worn split coupling sleeve, or misaligned suction chamber halves
Action / Part: Follow correct EZstrip procedure in manual Section 4, use lifting equipment for heavy components (rotor/stator over 60 kg), replace coupling rod sleeve halves (26D) if worn, ensure alignment marks on suction chamber halves (23E) match correctly, torque socket cap screws (P540) to 70 Nm, torque body/suction chamber bolts to 176 Nm
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