Objectives

The primary objective of this tender is to procure services for the repair, calibration, and installation of scales used for weighing chlorine tanks at various plants within the City of uMhlathuze. The work aims to ensure that the scales are functioning correctly, accurately calibrated, and maintained to support proper chlorine procurement and usage across wastewater and water treatment facilities.

Scope

The scope of work includes:

• Supply, repair, and calibration of stainless steel chlorine scales and load cells installed at multiple sites, including Esikhawini WTW, Mzingazi WTW, and Empangeni WWTW.
• Installation of stainless steel load cells with anti-vibration and levelling features.
• Generation and issuance of calibration certificates for each device.
• Ensuring all mechanical and electronic components are operational post-service.
• Reporting on calibration results, environmental conditions during testing, and any discrepancies observed.
• Provision of certified technicians to perform all services.
• Adherence to site access, safety, and environmental regulations.

Technical Requirements

The technical specifications for the scales and related equipment are as follows:

Esikhawini WTW

• Stainless steel chlorine scales with indicator and 10m cable.
• Labour for installation, repair, and calibration.
• Generation of calibration certificates.

Mzingazi WTW

• Supply and installation of stainless steel 5-ton load cells with anti-vibration and anti-sleep rubber levelling feet.
• Labour for installation, repair, and calibration.
• Generation of calibration certificates.

Empangeni WWTW

• Supply and installation of stainless steel 5-ton load cells with anti-vibration and anti-sleep rubber levelling feet.

General Technical Conditions

• Services must be performed by certified weighing technicians.
• All work must be documented with detailed service reports, including "As Found" and "As Left" calibration results.
• Calibration stickers indicating the next service date must be affixed to each device.
• All electronic and mechanical components must be checked and confirmed operational after service.
• Environmental conditions during testing must be recorded.
• All alterations must be signed off by the bidder, confirming modifications.
• Suppliers must provide relevant documentation, including good standing certificates, CSD registration, and verification certificates.

Additional Technical Requirements

• Site access will be granted by security personnel, adhering to security protocols.
• Contractors must wear appropriate PPE, including reflective vests with identification.
• Work must be planned to avoid disruption of plant operations.
• Contractors should be experienced in scale calibration and maintenance, with proven records.
• All alterations and price changes must be signed and documented to avoid disqualification.