Isolation_Valve_Contract-March_2026.doc

SPECIFICATIONS

AND

CONTRACT DOCUMENTS

FOR

ISOLATION VALVE PROJECT

2026-IFB-056

CITY OF GREENVILLE

JERRY RANSOM

MAYOR

RAMON RODRIGUEZ

PLACE 1

T.J. GOSS

PLACE 2

PHILIP R. SPENCER

PLACE 3

TIM KRUSE

PLACE 4

BEN COLLINS

PLACE 5

KENNETH FREEMAN

PLACE 6

CITY MANAGER – SUMMER SPURLOCK

INDEMNIFICATION CLAUSE INCLUDED

AT

SUPPLEMENTARY GENERAL PROVISIONS,

SECTION 12-4 B

AND

SECTION 12-8, 4TH PARAGRAPH

Prepared by:

CITY OF GREENVILLE

ENGINEERING DEPARTMENT

February 2026

CITY OF GREENVILLE

PUBLIC WORKS Isolation Valve Project

2026-IFB-056

Bids will be accepted until 3:00 P.M. local time on April 7, 2026 Bid responses can be submitted through https://procurement.opengov.com/portal/greenvilletx or by mail to PO Box 1049, Greenville, TX 75401. Bid responses may be delivered to City of Greenville Purchasing Department 2821 Washington Street, Greenville, TX 75401. All bids must be received in the Finance Office by the time and date mentioned above and clearly marked.

Late bids will not be accepted.

Until the final award, the City of Greenville reserves the right to reject any or all bids, to waive technicalities, to readvertise, to proceed otherwise in the best interest of the City.

The City Council will consider the award of the bid at a regular, scheduled meeting at the Municipal Building, or as soon thereafter as may be reasonably convenient.

In accordance with Uniform Commercial Code 2-205, the bid will be irrevocable from the time and date of the bid opening until the bid is accepted or rejected by the City Council.

CITY OF GREENVILLE

To be advertised in the Greenville Herald Banner:

On:

March 21, 2026 And:

March 28, 2026

ARN: 4322_____

DESCRIPTION

This section covers furnishing all labor, materials, equipment, and incidentals required to install fully functional insertion valves on existing pressurized water mains without interrupting water service. The valves shall be installed using an approved insertion-valve method that maintains pipeline pressure and water quality at all times.

References

AWWA C515 – Reduced-Wall Resilient-Seated Gate Valves

AWWA C800 – Underground Service Line Materials

AWWA C651 – Disinfection of Water Mains

Manufacturer’s published installation instructions

Local utility standards (as applicable) Submittals

Contractor shall submit:

Valve manufacturer data sheets for approval prior to ordering parts Installation procedure and equipment description

Certification of installer training by manufacturer

Shop drawings showing valve location and dimensions

PRODUCTS

Insertion Valve Assembly

Insertion valve shall:

Be specifically designed for hot-tap/insertion installation on a live main.

Be full-port or near full-port design with permanent resilient-seated gate.

Have a stainless steel or epoxy-coated ductile iron body.

Be rated for minimum 250 psi working pressure.

Be compatible with host pipe material (PVC, DIP, CIP, OR AC).

Include all necessary sleeves, templates, cutters, and sealing components.

Meet NSF 61 and NSF 372 requirements.

Approved manufacturers (one of the following):

· Hydra-Stop Insta-Valve 250

· Or equal approved by City 7 days prior to installation.

Valve Box and Appurtenances

Valve operating nut: 2" square unless otherwise specified. City to provide valve box while backfilling.

EXECUTION

Preparation

City to call for locates

City to excavate pit

City to provide Traffic Control and barricades

City to provide Trench Safety City to support pipe per manufacturer’s requirements Contractor to keep the trench dewatered and clean.

Installation Procedure

Clean host pipe surface and verify pipe OD.

Install the insertion-valve sleeve/clamp assembly centered on the proposed valve location.

Perform torquing of bolts in a star pattern to manufacturer-specified values.

Attach valve insertion machine and confirm proper alignment.

Perform hot-tap/cut-in operation under pressure.

Insert valve gate and complete installation per manufacturer instructions.

Verify valve operation through full travel.

City to install valve box centered over operating nut.

Contractor to keep completed valve assembly exposed until the City has inspected. Only after inspection and acceptance is the contractor allowed to wrap the assembly in polyethylene.

Marking Valve Locations

Each valve shall have the location of the valve permanently marked by cutting a “V” in the curb and providing no less than three measurements from landmarks nearby.

Polyethylene Encasement of Ductile-Iron fittings and Appurtenances

The CONTRACTOR shall install polyethylene encasement around underground installations of ductile-iron pipe, ductile iron fittings, valves and other ductile iron appurtenances.

Polyethylene shall be manufactured of virgin polyethylene material conforming to ASTM Standard Specification D-1248-78.

Polyethylene encasement shall prevent contact between the pipe and the surrounding backfill and bedding material, but is not intended to be a completely airtight and watertight enclosure. Overlaps shall be secured by the use of adhesive tape, plastic string, or any other material capable of holding the polyethylene encasement in place until backfilling operations are completed.

Backfill, compaction and Street Repairs

City to backfill, compact and make street repairs.

INSERTABLE VALVE PROJECT LOCATIONS

3108 Caddo – West of water tower, 12” cast

Hemphill & Roberts – 8” cast

Spencer & Texas – 6” cast

Bourland & Stuart – 8” cast (2x)

3504 Templeton – 8” cast

3411 Sayle – 8” cast

Cornelia & Tennis – 6” cast

Caddo & Texas – east of intersection, 12” cast

Marshall & Travis – 8” cast

Cleveland & Gordon – 8” cast

Division & Bois D’arc – 6” cast

Pollard & Henderson – 6” cast

Frazier & Bois D’arc - 6" cast

Creekside Church – north of church, 12” pvc

Patti J & FM 1570 – east of intersection, 6” cast

3101 Hwy 69 – 16” RCP with linestop Silver & King – 6” cast

Third & Jones – 6” cast

Third & Oneal – 6” & 8” cast

Third & Cornelia – 6” cast (2x)

Third & Division – south of intersection, 6” cast � EMBED MS_ClipArt_Gallery ���

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