Invitation To Tender: Supply, Installation & Commissioning of Twenty-One (21) Nipple Drinker Lines (60m)

Job Description

World Vision Registration No. PVO 26 /79
INVITATION TO TENDER
Supply, Installation & Commissioning of Twenty-One (21) Nipple Drinker Lines
(60m) with Dosatron Medicator Panel
World Vision Zimbabwe invites reputable, eligible, and qualified suppliers to submit sealed bids
for the supply, installation, and commissioning of twenty-one (21) nipple drinker lines,
each measuring 60 metres, complete with a Dosatron medicator panel, including pressure
regulation systems, end sets, and manual winch and pulley mechanisms for height adjustment.

Duties and Responsibilities

The works will be implemented at Tongogara Refugee Settlement in Chipinge District.
Scope of Supply & Works (Summary)
 21 x 60-m nipple drinker lines with nipple spacing not exceeding 0.27 m, constructed
of high-quality, corrosion-resistant piping suitable for poultry environments.
 Dosatron medicator panel per system: dosing pump compatible with poultry
medications/supplements; mixing chamber; inlet filtration; pressure-stabilising
components; bypass and isolation valves; calibration & testing prior to commissioning.
 Pressure regulation & end sets for each line, including end caps, flush valves, air release
valves, and all connectors/fittings for seamless integration.
 Manual winch & pulley system for height adjustment (galvanised/stainless steel
components), allowing easy raising/lowering during cleaning and bird growth stages.
 Installation, testing & commissioning per manufacturer standards; full system flush;
operational verification; alignment checks; dosing accuracy tests.
 Handover & training: onsite training on operation/maintenance; Dosatron use &
calibration; troubleshooting; provision of O\&M manuals, warranties, and as-built
drawings. Warranty

Qualifications and Experience

 Minimum 12-month warranty covering materials, installation workmanship,
dosing/mechanical components, and system performance.
Eligibility Requirements
Interested bidders must submit:
1. Company profile and proof of legal registration (certificate of incorporation, CR
documents).
2. Valid Tax Clearance certificate.
3. Evidence of experience in poultry watering systems.
4. Technical datasheets for nipple drinker lines, Dosatron medicator and associated
components; compliance statement against the above specifications.
5. Delivery & installation schedule, including commissioning plan and training outline..
6. Warranty terms and after-sales support plan.
7. Financial proposal (price breakdown: supply, installation, commissioning, training,
transport to site, taxes).
Site Visit :(Winning bidder)
 Winning Bidder shall verify onsite measurements and ensure compatibility with existing structures; all works to comply with manufacturer installation requirements and relevantpoultry production standards. Project location: Tongogara Refugee Settlement,
Chipinge District (approximately 165 km from Mutare and 420 km from Harare). The fowl
runs are 60metres x 10metres.

How to Apply

Contacts & Clarifications: Questions must be submitted in writing to:wvzprocurement-
harare@wvi.org.
Closing Date & Time:
Tuesday, 13 January 2026 at 1200 hours
Submission Instructions:
 The tender should be clearly labelled with the tender description.
Submit in the tender box located at:
World Vision Zimbabwe National Office
59 Joseph Road, Mount Pleasant, Harare
World Vision Zimbabwe reserves the right to accept or reject any tender in whole or in
part without assigning any reason

Terms of reference
Scope of Work – Supply and install, and commission twenty-one (21) nipple drinker lines, each
measuring 60 metres, complete with a Dosatron medicator panel. Fowl Run size is 60 metres x
10metres.
Project Title:
Supply, delivery, installation & commissioning of twenty-one (21) nipple drinker lines, each
measuring 60 metres, complete with a Dosatron medicator panel in Tongogara Refugee Settlement
which is 165km from Mutare and 420km from Harare in Chipinge District.
Implementing Partner:
World Vision Zimbabwe – Tongogara Refugee Settlement
Target Beneficiaries:
70 participating farmers for the poultry project
1. Project Objective.
The intervention aims to improve availability of clean water at all the times to the birds both at day
and night.
1.1 Improved Water Hygiene
• Modern drinkers (such as nipple drinkers) minimize water contamination because birds
cannot step into or spill water.
• Reduces the risk of bacterial growth and disease transmission, leading to healthier flocks.
1.2. Reduced Water Wastage
• Nipple drinkers and medicator systems deliver water directly to the bird’s beak, preventing
spillage.
• Saves water costs and reduces wet litter problems, which can cause ammonia buildup and
footpad dermatitis.
1.3 . Consistent Water Supply
• Automated drinker systems ensure birds have continuous access to clean water.
• Supports optimal growth and feed conversion rates, especially in large-scale operations.
1.4. Labor Efficiency
• Less time spent cleaning and refilling traditional troughs or open drinkers.
• Allows staff to focus on other critical tasks like monitoring flock health and feed
management.
1.5. Better Litter Quality
• Dry litter reduces odor, ammonia, and disease risks.
• Improves bird comfort and reduces culling due to foot problems.
1.6. Medication and Supplement Integration
• Modern systems often include medicator panels (e.g., Dosatron) for easy administration of
vitamins, vaccines, or treatments through water.
• Ensures accurate dosing and uniform distribution across the flock.
1.7. Scalability and Automation
• Suitable for climate-resilient poultry houses and large fowl runs.
• Can be integrated with automated monitoring systems for water pressure and flow.
1. Project Overview
The purpose of this assignment is to supply, install, and commission twenty-one (21) nipple drinker
lines, each measuring 60 metres , complete with a Dosatron medicator panel, pressure regulation
systems, and a fully functional manual winch and pulley mechanism for height adjustment. The
system must support efficient water delivery, medication dosing, and optimal poultry house
management.
2. Detailed Technical Requirements
2.1 Nipple Drinker Lines
The contractor shall supply and install:
 21 units of 60-metre nipple drinker lines
 Standard nipple spacing not exceeding 0.27 m
 High-quality, corrosion-resistant pipes designed for poultry environments
 Nipple drinkers suitable for broiler/layer production, ensuring consistent flow rates
2.2 Dosatron Medicator Panel
Each line shall be connected to a fully integrated Dosatron medicator panel, featuring:
 Dosing pump compatible with poultry medication and supplements
 Mixing chamber and inlet filtration unit
 Pressure-stabilising components
 Bypass and isolation valves for ease of maintenance
 Calibration and testing prior to commissioning
2.3 Pressure Regulation & End Sets
All supplied drinker lines must include:
 Pressure regulators suitable for maintaining consistent flow along 60 m lines
 End sets including:
o End caps
o Flush valves
o Air release valves
 Fully fitted connectors and fittings for seamless integration into the existing water system
2.4 Manual Winch and Pulley System
Each drinker line shall be equipped with:
 A manual winch device
 A pulley system designed for:
o Smooth height adjustment
o Easy raising and lowering of drinker lines during cleaning, maintenance, and bird
growth stages
 Galvanised or stainless-steel components to ensure durability and corrosion free.
3. Installation Requirements
The contractor shall:
 Conduct on-site measurements and confirm compatibility with existing structures
 Install all equipment according to manufacturer specifications
 Ensure proper alignment and spacing of drinker lines
 Test pressure levels, flow uniformity, and dosing accuracy
 Provide protective housing for medicator panel if required
 Conduct a full system flush and operational verification
4. Commissioning & Handover
Upon completion, the contractor shall:
 Demonstrate full operation of all drinker lines, regulators, end sets, and winch systems
 Provide training to farm staff on:
o Operation of nipple drinker systems
o Use and calibration of the Dosatron medicator
o Routine maintenance and troubleshooting
 Submit:
o Operation & Maintenance Manuals
o Warranty documents
o As-built layout drawings
5. Warranty
The contractor must provide:
 Minimum 12-month warranty on all mechanical, dosing, and structural components
 Warranty covering defects in materials, installation workmanship, and system performance
6. Deliverables
 21 fully installed and tested 60 m nipple drinker lines
 Operational Dosatron medicator panel
 Complete accessory sets (pressure regulators, end sets, winches, pulleys)
 Training and documentation package
 Final commissioning report
7. Compliance
All supplied equipment must:
 Meet relevant poultry production standards
 Comply with manufacturer installation requirements
 Be new, genuine, and free from defects

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