Loren Data's SAM Daily™

FBO DAILY - FEDBIZOPPS ISSUE OF AUGUST 24, 2014 FBO #4656
DOCUMENT

J -- Installation and integration of controls, metering alarms and emergency dump valves for two boiler tanks. - Attachment

Notice Date

8/22/2014
 

Notice Type

Attachment
 

NAICS

334513 — Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
 

Contracting Office

Department of Veterans Affairs;VA Connecticut;Network Contracting Office 1;950 Campbell Avenue;West Haven CT 06516
 

ZIP Code

06516
 

Solicitation Number

VA24114Q0771
 

Response Due

9/5/2014
 

Archive Date

11/4/2014
 

Point of Contact

Mary Jane Shea
 

E-Mail Address

MARYJANE.SHEA@VA.GOV
(maryjane.shea@va.gov)
 

Small Business Set-Aside

Total Small Business
 

Description

DESCRIPTION OF SERVICES PART I - GENERAL SCOPE OF CONTRACT: Provide all labor, materials, tools, equipment, and services necessary to replace existing level controls and water alarms for both the Deaerator and Condensate return Tank for the Boiler Plant B-16 in West Haven Connecticut as described here-in and defined by this Request for Proposal (RFP). BACKGROUND: The VA Connecticut, West Haven Campus is operating a high pressure boiler plant at the above referenced address. As part of this boiler plant there are two ASTM certified tanks utilized for receiving condensate return water from the facility and perimeter buildings and a Deaerator tanks that support the feed water for the aforementioned boilers. Currently these tanks have older float controls with mercury switches for makeup water to support the feed water to the boilers. The intent of this contract is to replace the existing dual feed water makeup controls as well as install electronic level control and low and high water alarms. SCOPE OF WORK: The contractor will provide all, labor, equipment and services necessary to perform boiler performance test as detailed with in this document to install a PLC controller that will support the integration of the controls, metering alarms and emergency dump valve required to completely automate both tanks. The Programmable Logic Controller (PLC) controller shall have the capability to remotely operate water fill valves on each tank and report levels for same to a digital touch screen controller that will be mounted into the existing master controller located within the boiler plant. The PLC controller will also initial alarms and action necessary to dump water that would be damaging to the operation of the Deaerator tanks. Condensate return tank will alarm only. Both sites will have local audible as well as remote enunciation at their respective locations within the boiler plant and at the touch screen monitor location. Additionally the existing sight glass level indicators shall be replaced as well. All level indicators, alarm water columns and probe tubes shall be piped in a fashion to have drains install with cross tees for cleaning and maintained. Testing and or isolation valves for all water level alarms shall have lock open only valves install to allow for servicing and testing of these controllers, floats and or probes. All automated water fill devices shall have full sized manual by-pass connections to facilitate emergency filling during repairs and or other conditions. Provide sufficient unions and isolation valves to allow servicing of all automated valves install so as not to have to shut systems down for servicing and testing. PART II Requirements DA Tank Water Level Indicators, Alarms and Controls: 1.Magnetic Float-Flag Type Water Level Gage: a.Tubular level gage with internal float using concentric magnet with stiffening rings. Float sequentially actuates magnetic flags to indicate water level. Flags anodized black on one side, gold on the other, with internal magnet. b.Flags magnetically interlocked with mechanical stops to allow only 180 degree rotation. c.Standpipe to be Schedule 40, 304 stainless steel with side type process connections for maximum visibility of gage. d.Bottom connection 100 mm (4 inch) flange with drain plug. Clearance between floor and bottom flange sufficient for removal of float. e.Switches for signals to be SPDT, 5 amp rating. 3.Vertical pipe type header shall be connected to top and bottom of storage tank with tank isolation valves and valved header drain. Viewable gages shall cover entire diameter of tank. 4.Minimum rating 120 degrees C, 200 kPa (250 degrees F, 30 psi). Low Level Alarm and High Level Alarm Switch and Overflow Control Switch: 1.Conductivity probe type electronic level switches providing relay contacts for separate high level alarm operation and overflow control valve operation completely separate from control system for inlet water flow control valves. Overflow control valve shall automatically open when the water level rises approximately 100 mm (4 inches) above the high water alarm level. Provide high level and overflow signals to annunciator system and computer workstation with graphical display showing level and alarm conditions at both locations. Alarm acknowledgment ac occur at the graphical display panel only 2.The principle of operation shall be differential resistivity of steam and water at the operating temperatures and pressures. The system shall include electronics unit, electrodes, special cable between the electrodes and electronics unit, and electrode cover. The unit shall be designed to fail safe. 3.Electronics Unit: a.Each unit shall be capable for signal discrimination of five electrode channels. b.Each electrode and its associated circuitry shall be powered by an independent power source. Power distribution system within the electronics shall be separate for each channel with its own transformer and shall be electrically isolated from other channels. c.Input power 110 V, 60 Hz, single phase. d.All input power to each electrode shall be a low voltage, low frequency AC voltage. DC voltages shall not be allowed because this may cause electroplating at the electrodes. e.The signal discrimination and fault detection system for each electrode channel shall be independent of the other channel and any fault in the electronics circuitry of one channel shall not be transferred to the other channel. f.The system shall have a continuous on-line fault detection system. The following faults shall be detected: Electrode failure, contamination from dirt on electrodes, electrode open circuit failure, electrode cable short to ground, electrode cable ground sense failure, power source failure, any electronic component failure. Electronic circuitry not monitored by the fault detection system shall be provide with triple redundancy, where the circuit shall continue to operate and provide contact output with up to two component failures. g.Faults shall be annunciated through separate NO and NC contacts. h.The front of the unit shall have a LED display for each electrode channel indicating steam or water and status of each electrode. i.NEMA 4X enclosure suitable for operating temperature of -20 to 70 degrees C (-4 to 158 degrees F), with up to 100% relative humidity. 4.Electrodes: a.Suitable for 120 degrees C, 200 kPa (250 degrees F, 30 psi) minimum. b.Electrodes without gaskets are preferred. c.Teflon insulator media. d.Electrodes fitted into shrouded inserts which are directly welded onto the stand-pipe. Design to minimize faulty indication due to falling condensate into the electrodes. 5.Electrode Cable: a.Pure nickel wires for at least the first two meters at the electrode end, with pure nickel crimps and PTFE insulation capable of withstanding up to 265 degrees C (500 degrees F). b.Continuous cables from the electrodes to the electronic unit. No junction boxes allowed. Overflow Water Control Valve and Controller: Open-shut electric-type overflow control valve actuated by conductivity probe-type water level sensor and control system. 1.Performance: When water level reaches the overflow level as set by the feed-water Deaerator manufacturer, automatically open the overflow control valve to reduce the water level. Automatically close the overflow valve when the water level has been lowered to a point 100 mm (4 inches) below the high level alarm set point. Valve operational speed shall not exceed 30 seconds for 90 degree valve movement. 2. The existing float control relief valve is connected to a 4 inch scheduled 80 piping system which ultimately dumps into an existing drainage sump. The existing float assembly shall be removed and piping refabricated to allow the installation of the new 4 inch full port automated butterfly valve. 3.Controller: Automatic control shall be from the high level alarm and overflow control switch system. Provide a manual/auto switch on the main instrument panel that indicates valve position. Communicate valve position with "Master Boiler Control Panel" and computer work station. Control valve shall fail open. A limit switch on the valve actuator shall initiate alarm on control station and in computer work station when valve is open. 4.Control Valve: a.High performance butterfly valve, double offset design. b.Carbon steel 17-4PH steel valve body conforming to ASME B16.34, Class 150, lug style, 316 stainless steel nitrided disc. c.Self-energizing TFE seat providing bubble-tight shut off service on vacuum and low pressure and pressure sealed for high pressures. Bi-directional seating. d.Packing adjustable, chevron design with TFE seals. 5.Valve Actuator: a.Double rack and pinion, single acting, fail open. b.Seals suitable for 480 degrees F (250 degrees C), using Viton elastomers. c.Actuator shall be controlled by 3-way, normally open solenoid valve with brass body and EPDM or Viton seals for high temperature service. d.Equip with limit switch containing two SPDT, proximity type switches to provide position indication. e.Size actuator be electrically operated and have a 30% safety factor to ensure enough spring capacity to open the valve after long periods of closure. Deaerator Storage Tank Automatic Water Level Controls: 1.Separate Electric-type modulating water inlet flow control valves for normal condensate transfer water and for emergency soft water makeup. Actuated by dedicated electronic controller with input signals from water level transmitter. Manual/auto control capability. 2. The existing flow type assembly regulates a 2 ½ inch supply source from the condensate return tank pumps at a minim 0-150 GPM at a maximum inlet pressure of 60 PSIG having a differential of 15 PSI. 3.Performance: Maintain a constant water level, plus or minus 25 mm (1 inch), in the feed-water Deaerator storage tank by controlling the flow of condensate transfer water to the Deaerator. Normal water level 200 mm (8 inches) below the overflow level. If water level falls to 100 mm (4 inches) below low water alarm set point, automatically operate the emergency soft water makeup valve to bring the water level to 100 mm (4 inches) above low water alarm setpoint. 4.Water Level Transmitter and Controller: Transmitter shall have programmable electronics, sealed diaphragms, direct sensing electronics, no mechanical force or torque transfer devices, external span and zero adjustment. Controller shall have proportional plus reset control, adjustable proportional band, reset rate and level set points. Provide manual-automatic control station on main instrument panel. Control station shall indicate actual water level, normal and emergency level set points and valve positions at the "Master Boiler Plant Control Center". Provide same indicating and control features on the existing computer workstation. 5.Condensate Transfer and Soft Water Flow Control Valves and Actuators: a.Electrically-actuated, globe style. b.Bronze or cast iron bodies, threaded ends for pipe sizes 50 mm (2 inches) and under rated at 1700 kPa (250 psi), ASME flanged ends for pipe sizes over 50 mm (2 inches) rated at 850 kPa (125 psi) or 1025 kPa (150 psi). c.Replaceable Type 316 stainless steel plugs and seats. RTFE seal for bubble-tight shut off. Linear flow characteristics. d.Flow pressure loss 35 kPa (5 psi) maximum at maximum deaerator output. e.Actuators to be electrically operated, fail closed spring pack, elastomers suitable for 120 degrees C (250 degrees F) continuous service. f.Electronic positioner with 4 - 20 ma DC control input. Mounted integral with actuator. Digital positioner with capability to self-calibrate. Maintenance diagnostic data retained in memory. Design for 120 degrees C (250 degrees F) continuous service. g. Provide pressure differential sensor to operate existing VFD drives for condensate feed water motors. CONDENSATE STORAGE TANK AND ACCESSORIES 1.Magnetic Float-Flag Type Water Level Gage: a.Tubular level gage with internal float using concentric magnet with stiffening rings. Float sequentially actuates magnetic flags to indicate water level. Flags anodized black on one side, gold on the other, with internal magnet. b.Flags magnetically interlocked with mechanical stops to allow only 180 degree rotation. c.Standpipe to be Schedule 40, Type 304 stainless steel. d.Process connections 1030 kPa (150 lb) weld neck flanges. Connections side type for maximum visibility. e.Bottom connection 100 mm (4 inch) flange with drain plug. Clearance between floor and bottom flange sufficient for removal of float. f.Switches for signals to be SPDT, 5 amp rating. 3.Vertical pipe type header shall be connected to top and bottom of storage tank with tank isolation valves and valved header drain. Viewable gages shall cover entire diameter of tank. 4.Minimum rating 120 degrees C, 200 kPa (250 degrees F, 30 psi). High and Low Level Alarm Switches: 1.Low Level Alarm and High Level Alarm Switch: Integral unit consisting of conductivity probes, probe housing. Float type not acceptable. Locate external to tank on a vertical header, along with the low level switch, with valved tank connections and valved drain. High level alarm indication shall occur 100 mm (4 inches) below the overflow level. Probes shall be AC, not DC, stainless steel with virgin Teflon insulation. 3.Provide signals to annunciator at the "Master Boiler Plant Control Panel" and existing computer workstation with graphical display showing level and alarm conditions at both locations. Alarm acknowledgment ac occur at the graphical display panel only 4.All devices exposed to tank service conditions, including sensing devices and transmitters shall be rated for 120 degrees C, 200 kPa (250 degrees F, 30 psi) minimum. Automatic Water Level Controls: 1.Separate Electric-type modulating water inlet flow control valves for normal soft water make-up and for emergency city water makeup. Actuated by electronic controller with input signals from water level transmitter. Manual/auto control capability. 2. The existing flow type assembly regulates a 3 inch supply source from the Treated water source at a minim 0-150 GPM at a maximum inlet pressure of 60 PSIG having a differential of 15 PSI. Raw water make supply is same as the treated water supply or 3 inch supply source raw water source at a minim 0-150 GPM at a maximum inlet pressure of 60 PSIG having a differential of 15 PSI. 3.Performance: Maintain a minimum water level, plus or minus 25 mm (1 inch), in the tank by controlling the flow of soft water to the tank. Soft water makeup shall be activated if water level falls to 30% of tank diameter plus 300 mm (12 inches). If water level falls to 30% of tank diameter, automatically operate the emergency city water makeup valve to bring the water level up 150 mm (6 inches). 4.Water Level Transmitter: Programmable electronics, sealed diaphragms, direct sensing electronics, no mechanical force or torque transfer devices, external span and zero adjustment. 5.Controller: Proportional plus reset control, adjustable proportional band, reset rate and level set points. Provide manual-automatic control station on main instrument panel. Control station shall indicate actual water level, soft water and emergency city water level set points and valve positions. Provide same indicating and control features on computer workstation specified in Section 23 09 11, INSTRUMENTATION AND CONTROL FOR BOILER PLANT. If new boiler combustion controls are furnished as part of this contract, the water level controller and transmitter shall be the same makes and models as furnished for the combustion controls. 6.Water Flow Control Valves: a.Electrically-actuated, globe style. b.Bronze or cast iron bodies, threaded ends for pipe sizes 50 mm (2 inches) and under rated at 1700 kPa (250 psi), ASME flanged ends for pipe sizes over 50 mm (2 inches) rated at 850 kPa (125 psi) or 1025 kPa (150 psi). c.Replaceable Type 316 stainless steel plugs and seats. RTFE seal for bubble-tight shut off. Linear flow characteristics. d.Flow pressure loss 35 kPa (5 psi) maximum at maximum flow rating. Unless otherwise shown, maximum flow rate shall be equivalent to 50% make-up rate with plant at maximum load (2 boilers at high fire). e.Electronic-type actuator, fail closed spring pack, elastomers suitable for 120 degrees C (250 degrees F) continuous service. f.Electronic positioner with 4 - 20 ma DC control input. Mounted integral with actuator. Digital positioner with capability to self-calibrate. Maintenance diagnostic data retained in memory. Design for 120 degrees C (250 degrees F) continuous service. 7. Water Level Transmitter and Controller: Transmitter shall have programmable electronics, sealed diaphragms, direct sensing electronics, no mechanical force or torque transfer devices, external span and zero adjustment. Controller shall have proportional plus reset control, adjustable proportional band, reset rate and level set points. Provide manual-automatic control station on main instrument panel. Control station shall indicate actual water level, normal and emergency level set points and valve positions at the "Master Boiler Plant Control Center". Provide same indicating and control features on the existing computer workstation. PART III SPECIAL INSTRUCTIONS 1.Hours Of Operation: All work is to be scheduled for Monday thru Friday 7 AM to 5 PM with the exceptions for system shutdown for critical equipment which will be reserved for Saturdays and limited to no more than 6 hours where equipment is off line 2.All hazardous and non-hazardous materials generated at VACHS will be disposed in accordance with current Federal, State and local guidelines governing regulated hazardous and non-hazardous chemical wastes. All hazardous waste to be disposed of shall first be coordinated through the Environmental, Health and Safety Office through the COR. 3.Capability Requirements: The Contractor Service Representative(s) who perform services under this contract must be competent, experienced and qualified to perform such services listed herein. All work performed will be first class in accordance with best practices. The Contractor shall submit proof of appropriate training, equipment knowledge and experience for all personnel performing services on equipment as identified in the Equipment List. The Contractor shall be able to have their equipment able to communicate with all connected equipment that is in the Building Operating and Control System Computer without any interference with the proper operation of such equipment. 4.Licenses and Permits: The Contractor shall, without additional cost to the VACHS, provide and maintain all licenses and permits for operational personnel, equipment, vehicles and other resources required for accomplishing all requirements per this contract specification in accordance with all applicable Federal, State, Municipal, and Local Regulations (e.g. OSHA, EPA, CT-DEP). If appropriate licenses are not maintained in accordance with requirements, the VACHS may terminate the contract. 5.Regulatory Documentation The Contractor will be required to comply with changes to Federal, State and local regulations and procedures which occur during the term of this contract. The Contractor will provide to the VACHS any additional certifications that may be required because of changes in such laws. 6.Identification, Check-in, Parking, and Smoking Regulations: The Contractor's Service Personnel shall wear visible identification at all times while on VACHS premises. Contractor's Service Personnel will be required to sign in once on campus at the Building 3 Facility Management Service (FMS) Building. Contractor's Service Personnel will always report to COR once on campus and before the start of any work. The Contractor's Service Personnel will park vehicles in appropriate designated parking areas. Information on parking is available from the Facilities Management Service (B 3) or the VACHS Police Service. The VACHS will not invalidate or make reimbursement of parking violations of the Contractor's Service Personnel under any conditions. Smoking is prohibited inside any buildings at the VACHS. Possession of weapons is prohibited. Enclosed containers, including tool kits, shall be subject to search. Violations of VACHS regulations may result in citation answerable in the United States (Federal) District Court, not a local district, state, or municipal court. 7. OSHA Compliance All Vendor employees shall have at a minimum 10 Hour OSHA certificates for safety as well as the Competent Person to have 30 Hrs OSHA Certificates. Vendor shall compliance to CFR 1910 and 1926 as appropriate for Service maintenance for this type of equipment. Detailed site specific safety plan will be required to be approved prior to initiating work. Each task and or sub task to be clearly identified and addressed. A site specific safety plan will be required for this effort and must be approved by VACHS prior to starting work. 8.Reference Documents: Please refer to the VA Technical Library for specific reference to Division 22 - Plumbing, Division 23 - Heat, Ventilating, and Air Conditioning, and Division 26 - Electrical for Low Voltage work (under 600V) at the following link http://www.cfm.va.gov/til/spec.asp NOTE: Areas of work for this contract are considered wet locations and appropriate code requirements are to be followed for this project. 9. TIME FOR COMPLETION The contractor shall complete all work within 90 days after "NOTICE TO PROCEED". 10. SUBMITTALS Submit manufacturers' literature covering all materials and equipment to be utilized in the project, at least four (4) copies shall be provided for approval. Direct all submittals through the Contracting Officer to the COR. Do not order materials prior to approval of submittals. 11. AS-BUILT AND O&M MANNUALS a.The contractor shall deliver a complete set of As-Built drawings for all work installed. b.All systems shall be tested and certified for proper operation. c.O&M manuals shall be complete for all materials installed. d.Include an electronic copy, CD, for each hard copy booklet which will include all materials listed in the O&M Manual including drawings. e.Four sets for the aforementioned will be required upon completion of work and prior to final payment. 12. GUARANTEE: a.The contractor shall guarantee all materials, equipment, and workmanship for a period of one year from date of acceptance of the entire project. b.During the term of the guarantee the contractor shall repair or replace all defective material or equipment within 24 hours of notice without additional cost to the Government. 13. Site Conditions: a.The specifications do not detail all existing structures utilities, or components that may interfere with the contract work required. The bidder shall note any obstruction, utility, or condition that may hinder or interfere with the execution of this contract and will make provisions within his bid accordingly. All reallocations of utilities shall be approved by the COR. b.Restoration of all disturbed areas shall be repair to match the existing conditions. Repairs include but are not limited by the restoration of grass and grading, sidewalks, roads and roadways. ?
 

Web Link

FBO.gov Permalink
(https://www.fbo.gov/spg/VA/WHVAMC/VAMCCO80220/VA24114Q0771/listing.html)
 

Document(s)

Attachment
 

File Name: VA241-14-Q-0771 VA241-14-Q-0771_FBO NOTICE.docx (https://www.vendorportal.ecms.va.gov/FBODocumentServer/DocumentServer.aspx?DocumentId=1590273&FileName=VA241-14-Q-0771-000.docx)

Link: https://www.vendorportal.ecms.va.gov/FBODocumentServer/DocumentServer.aspx?DocumentId=1590273&FileName=VA241-14-Q-0771-000.docx

 

Note: If links are broken, refer to Point of Contact above or contact the FBO Help Desk at 877-472-3779.
 

Place of Performance

Address: Department of Veterans Affairs;VA Connecticut;950 Campbell Avenue;West Haven CT 06516

Zip Code: 06516
 

Record

SN03477518-W 20140824/140822235736-504ef5366a174eda216ae282ea75525f (fbodaily.com)
 

Source

FedBizOpps Link to This Notice
(may not be valid after Archive Date)

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