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Corken Z2000 - User Manual

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Installation, Operation
& Maintenance Manual
Z-Series Sliding Vane Pumps
Truck and Stationary
Model Z3200 Truck Pump
Model Z2000 Truck Pump
Model Z4200 Truck Pump
Model Z4500 Stationary Pump
Model Z3500 Truck and
Stationary Pump
Solutions beyond products...
Warning: (1) Periodic inspection and maintenance of Corken products is essential. (2) Inspection, maintenance and installation of Corken products
must be made only by experienced, trained and qualied personnel. (3) Maintenance, use and installation of Corken products must comply with
Corken instructions, applicable laws and safety standards (such as NFPA Pamphlet 58 for LP-Gas and ANSI K61.1-1972 for Anhydrous Ammonia).
(4) Transfer of toxic, dangerous, ammable or explosive substances using Corken products is at user’s risk and equipment should be operated
only by qualied personnel according to applicable laws and safety standards.
ORIGINAL INSTRUCTIONS ID105K

Table of Contents

Questions and Answers

  • L
    Linda GarciaAug 7, 2025
    What to do if my Corken Z2000 Water Pump runs but there is no flow?
    • M
      Michelle JonesAug 7, 2025
      If your Corken Water Pump runs but there is no flow, check the valves to ensure they are open, paying special attention to the internal tank excess flow valve. If the excess flow valve is slugged, stop the pump until the valve opens. If the problem persists, reduce the pump speed or install a new or larger excess flow valve. Also, a broken shaft or a defective meter can cause this issue. In the first case, disassemble and inspect the pump, repairing as needed. In the second case, service the meter.
  • D
    Daniel AllenAug 12, 2025
    Why is my Corken Z2000 so noisy?
    • S
      shannonscottAug 12, 2025
      If your Corken Water Pump is noisy, it could be due to several reasons. Check for cavitation caused by poor suction conditions. Sticking vanes can also cause noise. Additionally, inspect the bearings for wear and replace them, greasing monthly. A clogged meter screen can also cause noise, so clean it. If the differential pressure is very high, check for restrictions in the discharge line, ensure the delivery hose isn't too small or long, and slow down the pump. Also, check the vapor release float assembly on the meter and the meter differential valve. Finally, inspect and repair the PTO shaft driveline component if there is vibration.
  • A
    Abigail MooreAug 17, 2025
    Why Corken Z2000 will not build pressure?
    • J
      Joseph StantonAug 18, 2025
      If your Corken Water Pump will not build pressure, it could be due to poor suction conditions. Clean the inlet strainer and increase the pipe size to improve suction. Also, check the external bypass valve setting. If it is set too low, adjust the valve to a higher pressure according to the instructions. Worn vanes and/or sideplates can also cause this issue, so disassemble, inspect, and repair as necessary. Avoid running the pump dry.
  • J
    justinriceAug 21, 2025
    How to fix low capacity on a Corken Water Pump?
    • R
      Robert RossAug 22, 2025
      If your Corken Water Pump has low capacity, it may be due to a suction pipe that is too small or restricted. Remove any restrictions or modify the piping. Worn vanes or sideplates can also cause low capacity; replace the vanes or reverse/replace the sideplates. Make sure the universal drive assembly angularity is within limits, the yokes are parallel, and the slip-joint is greased. Also, check the bearings and pulley alignment on belt drive pumps. If the vanes are sticking, remove them and clean out any foreign matter, checking the strainer. Replace the vanes if they are swollen. Note that pump without vapor return also may cause low capacity.
  • A
    alexbrownAug 27, 2025
    What to do if my Corken Z2000 Water Pump will not turn?
    • V
      vazquezashleyAug 27, 2025
      If your Corken Water Pump will not turn and appears locked up, it could be due to foreign matter inside the pump. Clean out the pump and check the strainer in the suction line. Broken vanes can also cause this issue; carefully clean out the pump and replace the vanes. Check for damage to the cam and rotor shaft assembly, especially if the pump has been operated dry. Seized bearings can also prevent the pump from turning; replace the pump bearings and grease them monthly using ball bearing grease manufactured for the intended service. Finally, moisture frozen in the pump can cause it to lock up. Let the pump thaw carefully to break it loose. Add methanol to the tank (on LP-Gas) and check with your product supplier about the possibility of water in the gas.
  • E
    Erika BrownSep 1, 2025
    How to fix a Corken Water Pump that leaks around the shaft?
    • J
      joshuadavisSep 1, 2025
      If your Corken Water Pump leaks around the shaft, it is likely due to a failed seal or O-rings. Inspect the seal assembly and replace it if necessary. Keep the new seal very clean during replacement and apply a light oil film on the O-rings. Avoid running the pump dry!

Summary

ATEX Conformity and Operational Safety

ATEX Directive Compliance

Information on compliance with ATEX directive for explosive atmospheres.

Z-Series Pump Principles and Features

Pump Principles (Coro-Vane)

Truck Pump Installation Overview

Installation Principles

General guidelines for optimal pump performance.

Truck Pump Installation Details

Power Take-off (PTO) Drive Systems

Truck Pump Operation

Transferring Liquid from Truck Tank

Step-by-step guide for full capacity transfer.

Stationary Pump Installation Guidelines

Stationary Pump Operation

Initial Pumping Operation Steps

Z-Series Pump Maintenance

Maintenance Purpose and Scope

Pump Maintenance Schedule

Table detailing daily, monthly, and 3-month checks.

General Maintenance Procedures

Z-Series Seal Replacement Instructions

Seal Replacement Preparation

Steps before starting seal replacement, including depressurization.

Seal Seat and Grease Seal Installation

Seal Assembly Installation Steps

Installing the New Seal Seat

Completing Seal Replacement

Installing New Seal Assembly (Retainer & Carbon)

Repair;Rebuild Kits with Iron Seal Seat

Repair;Rebuild Kits with Silicon Carbide Seal Seat

Kit Contents for Z2000;ZH2000;ZX2000;ZXH2000

Lists components for silicon carbide seal seat repair kits.

Kit Contents for Z3200;ZH3200

Lists components for silicon carbide seal seat repair kits.

Kit Contents for Z3500

Lists components for silicon carbide seal seat repair kits.

General Assembly Instructions for Rebuild Kits

Pump Head and Bearing Assembly

Steps for assembling the pump head and bearings.

Rotor Shaft and Seal Installation

Procedures for installing the rotor shaft and seal components.

Appendix A: Model Identification Codes (Truck Pumps)

Z-Series Truck Pump Model Code

Appendix A: Model Identification Codes (Stationary Pumps)

Z-Series Stationary Pump Model Code

Appendix B: Pump Specifications

Equipment Type, Applications, and Benefits

Overview of pump features and uses.

Operating and Material Specifications

Details on performance ranges and material compositions.

Appendix C: Performance Curves (Z2000;ZH2000;ZX2000;ZXH2000)

Appendix C: Performance Curves (Z3200;ZH3200)

Appendix C: Performance Curves (Z4200;ZH4200)

Capacity vs. Differential Pressure

Graphical data for pump performance.

Appendix C: Performance Charts

Delivery, Brake HP, and Torque Data

Tabular performance data for various models.

Appendix C: Performance Curves (Z3500)

Appendix C: Performance Curves (Z4500)

Capacity and Power Curves

Graphical data for pump performance.

Appendix E: Parts Details (Z;ZH;ZX;ZXH2000)

Appendix E: Parts Details (Z;ZH3200)

Appendix E: Parts Details (Z3500)

Appendix E: Parts Details (Z;ZH4200)

Appendix E: Parts Details (Z4500)

Exploded View and Part Numbers

Appendix E: Parts Details (Hydraulic Adapter - Z2000;Z3200;Z3500)

Appendix E: Parts Details (Hydraulic Adapter - Z4200;Z4500)

Hydraulic Adapter Parts Breakdown

Appendix F: V-Belt Selection (Stationary Pumps)

Belt Selection Chart for Stationary Pumps

Appendix F: V-Belt Selection (Z4500)

Belt Selection Chart for Z4500 Pumps

Appendix G: Troubleshooting Guide

Common Pump Problems and Solutions

Addresses issues like low capacity and high differential pressure.

Appendix G: Troubleshooting Guide (Continued)

Advanced Troubleshooting Scenarios

Covers issues like pump noise, leaks, and seizing.

Corken Z2000 Specifications

General IconGeneral
BrandCorken
ModelZ2000
CategoryWater Pump
LanguageEnglish

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