Tenders and RFPs
2019-008 Replacement of ASCO Gas Safety Valves
Location(s): WPCC Treatment Plant – Digester Control – Gas Production Room
Address(s): 1807 County Rd. #2 East Brockville
Date: June 18, 2019
Department: Environmental Services – Wastewater Systems Division
Site visits acceptable by appointment. ~ Questions due by July 10th 4PM
Bids acceptable by drop off at WPCC or email Deadline for submission July 19th 4 PM
The City of Brockville – Environmental Services Department – Wastewater Systems Division has identified the following project, as defined below. The below scope of work is a guideline for qualified contractors to provide competitive bids for consideration to complete the work:
The City of Brockville Water Pollution Control Centre has on site two (2) anaerobic digesters used to stabilize biosolids into a useable biogas that is used throughout the facility for process and building heating.
Each digester has a gas reclamation system, consisting generally of a gas dome, flame arrestor(s) moisture knockout decanter, gas boosters, pressure regulators and associated piping, valves and fittings etc.
In particular to the gas reclamation piping is a gas safety valve that is installed prior to each of the two (2) gas boosters which, automatically close during a power outage, or other disruption in the normal gas operation.
The scope of this project is to replace both of the ASCO Gas Safety Valves.
The valve/actuator combo currently installed:
The City of Brockville, Environmental Services Department, Wastewater Systems Division requests contractors with the necessary TSSA qualifications to be able to perform work on a fuel system, to provide materials, installation and testing to replace two (2) of the in-service safety valves in accordance with all relevant safety and legislative requirements, with all work done to CSA Standard B149.6.
The new replacement valves shall either be direct replacement of the ASCO valve or, if superseded by a newer model, the modern equivalent to provide equal or improved safety protection of the gas system.
Expectation of the services to be provided as follows:
WPCC Plant Operations and Maintenance staff will provide the following support:
* Note the two valves; operate as part of parallel gas reclamation lines. One must remain in service at all times so labor and consumables estimates must account for work being done on one the gas trains sequentially to maintain process operation
Quotes provided for consideration will list costs in the following format:
This intent of this document is to provide a general scope of work regarding a project to be undertaken by the City of Brockville. The details of the project listed include the general requirements, intended goals or outcomes and methods as they are understood at the time of the documents writing. The intent of this document is to convey these details to a potential vendor, contractor or service provider in order to give them a base to provide a proposed price for the service or good requested. A vendor, contractor or service provider may suggest providing alternative products or methods they deem equivalent to provide cost savings as long as they are providing a competitive equivalent to what has been requested. Deviations from the requested scope of work may result in the proposed alternatives not being considered for competitive comparison.
Phil Wood, P. Eng.
Supervisor – Wastewater Systems
Environmental Services Department