Gov_Response_Hardline_Piping_PPI.pdf
PDF 188 KB Posted
- Attached to
- Hydraulic Hardline Piping
- Solicitation number
- N0016726Q1089
About this file
This is a Pre-Proposal Inquiry Submission Form containing government responses to contractor questions regarding a hydraulic piping installation contract for laboratory testing facilities in Building 60 and Building 19.
The contract requires installation of hardline hydraulic piping systems with NPS 2-inch SCH80 pressure/return lines and NPS 1.25-inch SCH40 drain lines rated for 3,000 psi maximum working pressure. Tubing material selection is at contractor discretion with stainless steel preferred; wall thickness must be selected to meet the 3,000 psi working pressure requirement. Fittings must be 37-degree plated flared fittings conforming to SAE J514 and rated for 3,000 psi working pressures. Ball valves for pressure, return, and drain lines must support 3,000 psi maximum working pressure with stainless steel preferred. The piping system requires a 3:1 burst rating ratio (9,000 psi minimum burst rating); alternate connection methods such as compression fittings or flanging connections are acceptable if necessary to meet this requirement. Pressure testing with nitrogen gas and flushing with MOBILE DTE 25 hydraulic oil is the preferred method. Both ASTM A519 and ASTM A179 are acceptable US standards for tubing material. The piping trench in Building 60 Room 172 measures approximately 4 feet wide with depth ranging from 3 to 4.5 feet; grating removal and trench cover modifications are performed by lab personnel. Contractor scope includes elbows and connectors necessary for trench routing but excludes final connections to MTS equipment, which lab technicians will complete. Normal working hours apply with equipment shutdown as necessary for safety. Site staging is permitted outside overhead doors; no site-specific training, permitting, or confined space entry is required. Payment and Performance bonds are required; bid guarantee is not required. The site will provide hydraulic oil for testing and flushing operations.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Solicitation - N0016726Q1089.pdf | ||
| Wage Determination MD20260120 060426.pdf | ||
| Pre Proposal Inquiry Spreadsheet Hardline Piping.xlsx | XLSX spreadsheet | |
| RFQ N0016726Q1089 Hydraulic Hardline Piping.pdf | ||
| A6 PWS ENCL1_Drawings REV3.pdf | ||
| A6 PWS_172 Hardline Piping - RV3.pdf | ||
| Price Proposal Form.xlsx | XLSX spreadsheet |
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Text version
Page Section Paragraph VastGlobe
Logistics LLC 07/08/2026 PWS p. 2-3 PWS/SOW 3.1.3.4 /
3.2.3.4 Please provide the required ball valve specifications for the pressure, return, and drain lines, including valve material, pressure rating, full-port requirement if applicable, seat/seal material, end connection type, and whether any specific manufacturer or MTS-compatible valve standard is required.
Ball valve must be able to support the max working pressure of 3,000 psi. Valve material is at the discretion of tubing contractor, with a preference for stainless steel.
VastGlobe Logistics LLC
07/08/2026 PWS p. 2-3 PWS/SOW 3.1.3.4 / 3.2.3.4
Please confirm whether any fitting requirements apply beyond 37-degree plated flared fittings conforming to SAE J514, including fitting material, coating/plating, pressure rating, manufacturer, fitting style, and whether a fitting schedule is available.
Fittings should be rated for working pressures of 3,000 psi.
VastGlobe Logistics LLC
07/08/2026 PWS p. 1-3 PWS/SOW 3.1.3 / 3.2.3 Please confirm there are no additional pipe material, coating, cleaning, certification, or manufacturer requirements beyond the pipe specifications listed in the PWS for the NPS 2-inch SCH80 pressure/return lines and NPS 1.25-inch SCH40 drain lines.
No other tubing specifications.
Ensure adherance to 3.1.3.
VastGlobe Logistics LLC
07/08/2026 PWS p. 2-4 PWS/SOW 3.1.5 / 3.2.5 Please confirm whether the Government requires a specific pressure test procedure, leak acceptance criteria, test report format, flushing report, ISO 4406 particle count verification method, hydraulic oil disposal requirement, or other testing documentation beyond the requirements stated in the PWS.
Pressure test with Nitrogen gas and flush with MOBILE DTE 25 is preferred method. Verification by contractor is required.
VastGlobe Logistics LLC
07/08/2026 Drawings p.
1-2
Enclosure 1 Drawings
Hydraulic Piping Trench
Please provide the width and depth of the hydraulic piping trench in Building 60 Room 172 and Building 19 B-Bay, including any known clearance restrictions around existing piping.
Piping trench in B60 Rm 172 is on a downhill grade and thus depth changes around 3 feet at the shallow end to 4-4.5feet at its deepest. Width is constant at about 4 feet across
VastGlobe Logistics LLC
07/08/2026 Drawings p.
1-2
Enclosure 1 Drawings
Hydraulic Piping Trench
Please confirm whether the hydraulic piping trenches have grating, trench plates, or removable covers. If yes, please confirm whether the contractor is responsible for removal, modification, and reinstallation as part of the scope.
Grating will be lifted by lab techs.
Not required work by contractor.
VastGlobe Logistics LLC
07/08/2026 Drawings p.
1-2
Enclosure 1 Drawings /
PWS
Equipment Connections
/ 3.1.3.4 / 3.2.3.4
Please provide the connection size and connection type for each existing and planned piece of equipment to be connected to the new hydraulic piping, including the MTS HPU and each MTS test frame shown in the drawings.
This is outside the scope of work for the contract. Expected work ends at "TEE", green rectangle in enclosure coming out of trench. Lab tech will fit softline tubes to MTS frames/manifolds.
VastGlobe Logistics LLC
07/08/2026 PWS p. 2-3 PWS/SOW 3.1.3.4 / 3.2.3.4
Please confirm whether the contractor is required to furnish all adapters, transition fittings, flanges, hoses, or other interface components needed to connect the new hardline piping to the existing MTS HPU and test frames.
Contractor is not required to perform this action see above. Elbows and other connectors to run tubing in the trench is required by the contractor.
GOVERNMENT RESPONSE
Pre-Proposal Inquiry Submission Form Submitted By Date Submitted
Reference Inquiry
VastGlobe Logistics LLC
07/08/2026 Solicitation
p. 2 /
Contract Delivery
Solicitation
/ PWS
Schedule
Overall Contract Delivery Period
Please confirm the anticipated work schedule and available access windows for this work. Are normal working hours required, or will any work need to be performed after hours, on weekends, or during laboratory shutdown periods?
Normal working hours expected. Lab team will work with contractros to shutdown test frames as necessary.
VastGlobe Logistics LLC
07/08/2026 PWS /
Drawings
Site Conditions / Laboratory Operations
Installation, Pressure
Testing, and Flushing
Please confirm whether the existing MTS equipment and laboratories will be shut down and available to the contractor during installation, pressure testing, and flushing, or whether the work must be phased around ongoing Government operations.
Equipment will be shut down as necessary to ensure safety and proper installation
VastGlobe Logistics LLC
07/08/2026 Solicitation
p. 2
Site Visit / Security Access
Site Visit Access
Requiremen ts
Please confirm the post-award site access and badging requirements for contractor and subcontractor personnel performing the work, including whether escorts are required, required documents, and expected processing time for access approval.
Valid drivers licesnse/US Citizen are needed.
VastGlobe Logistics LLC
07/08/2026 Site Visit / Drawings
Site Visit / Enclosure 1
Field Verification
Please confirm whether field measurements and photographs are permitted during the site visit for proposal preparation and final material takeoff.
Field measurements and photgraphs of trench are permitted.
VastGlobe Logistics LLC
07/08/2026 PWS p. 2-3 PWS/SOW 3.1.4 / 3.2.4 Please confirm whether there are any restrictions on drilling or anchoring into the trench for support bracketry, and whether the Government has preferred support bracket materials, spacing, or anchoring requirements.
Drilling into the trench walls is ok.
Bracket/support material and design is at the discrestion of contractor.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline_ Piping_R
V3"
3.1.3.1
Please confirm the conveying material needed is tubing.
Schedule 40 and 80 "PIPE" is referenced however pipe cannot be flared. Pipe schedule also determines wall thickness and the related pressure rating for pipe, however the schedules noted do not meet the 3,000 psi working pressure of the supply line.
Tubing is needed; wall thickness shall be selected to meet working pressure of 3,000 psi.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline_ Piping_R
V3"
3.1.2.1 & 3.1.3.1
Paragraph 3.1.2.1 notes that the piping/tubing should be sized to maintain specified velocities.
Paragraph 3.1.3.1 notes the sizes recommended by the manufacturer. Please confirm that the sizes noted should be used for bidding purposes. If calculations are required in order to confirm appropriate pipe/tube sizes, these should be performed by a licensed engineer and specified as needed.
Sizes noting should be used for bididng purposes;
verification that the tubing size meets the specification should be completed.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping_
RV3"
3.1.2.1 & 3.1.3.1
Please confirm if mechanical/hydraulic engineering and/or design drawings are required for this work.
Mechanical/design drawings are not explicitly required for this work.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping_R
V3"
3.1.2.2
The burst rating requirement is noted as 3x the working pressure for the system. Understanding the supply line working pressure rating is 3,000 psi, the burst rating should be 9,000 psi. After reviewing with tubing and fitting manufacturers, flared JIC connections for the tubing sizes noted, will not meet these requirements. Alternate connection types such as plain end tube with compression fittings, or alternate flaring/flanging connections are capable of meeting the pressure requirements. Alternatively if a 2:1 (2x) safety factor for burst rating is acceptable, then JIC flared connections may be able to meet the requirements although industry standard for 2 inch JIC fittings is between 1,500 to 2,500.
Alternate methods should be utilized to maintain the 3:1 ratio noted
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping
RV3"
3.1.3.3
The E355 and E235 specifications noted are European specifications/standards for tubing. Please confirm if either ASTM A519 or ASTM A179 is an applicable US standard.
Yes both ASTM A519 and ASTM A179 are applicable
US Standards
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping
RV3"
3.1.3.4
Flared JIC connections are noted to be used for "...pipe/tube, fittings, elbows, tees, and all other fixturing necessary...". The existing hydraulic lines onsite appear to transition to NPT connections where exposed above the floor. Please confirm if matching in kind is acceptable for above floor valve trees/assemblies.
Matching in kind is acceptable.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping_
RV3"
3.1.4
Please confirm if strut and clamps to match existing bracketry and supports in the existing hydraulic system are acceptible for use.
This is acceptable
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping
RV3"
3.1.5.1 Please confirm if using Nitrogen gas or other air/gas is acceptable for pressure testing.
Nitrogen gas is acceptable
7/8/2026 1
"A6 PWS
Hardline Piping
RV3"
3.1.5.2
Please confirm if there are any temperature or velocity/flow requirements for flushing the new lines following their installation and testing.
Defer to equipment OEM (MTS) recommendations. No known temperature or flow requirements.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping_R
V3"
3.1.5.2
Please confirm if temporary 460V, 3-phase power is available for use at the build locations. If so, please confirm locations for power feed/connection and amperage/capacity available. If not, please confirm if temporary generator can be mobilized to site and left running unmanned for up to 24 hours and overnight (if necessary) for system flushing.
Temporary generator can be mobilized to site and operated during normal hours with operator supervision.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping
RV3"
3.1.5.3
Please confirm if site will provide the hydraulic oil required for testing/flushing and/or filling the system.
Site will provide the oil
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline Piping
RV3"
3.2 Please confirm the responses to
questions above are applicable to the Building 19 option install.
Confirmed.
Blue World Construction
7/8/2026 1
"A6 PWS
Hardline_ Piping_R
V3"
3.2.4
There are references to routing new hydraulic pipe/tube and fittings in existing trenches for the building 19 work. Please confirm that Building 19 installation is above the existing floor, and that new elevated strut supports (matching in kind those used in the Building 60 lab), to match the height (above floor) of the existing wall penetration are acceptible for use. Please also confirm the existing penetration(s) are to be used for new tubing/pipe installation.
No trenches exist in B/19.
B/19 installation is above existing floor with new elevated strut supports matching height of existing wall penetrations which are to be used for new tubing installation.
Blue World Construction
7/8/2026 1
General General
Please confirm that the areas outside and adjacent to the overhead doors at both build locations (Bldg 60 lab, and Bldg 19 pump room) can be used for tool, truck, material, and equipment staging as necessary.
Outside areas can be sued for staging as necessary
Blue World Construction
7/8/2026 1 General General
Please confirm if any site specific training is required prior to performing work onsite.
No site specific training is required
Blue World Construction
7/8/2026 1
General General
Please confirm if existing site facilities (restrooms, dumpsters, etc.) are available for contractor use while performing site work.
Exisitng facilities are available
7/8/2026 1
General General
Please confirm that modifying the existing steel cover plates as required for new tubing/fitting penetrations along the trenches is acceptable
Modifying trench plates for new TEEs is acceptable.
Blue World Construction
7/8/2026 1
General General
Please confirm that supply/install/connections between new hydraulic tube/pipe and onsite pumps/presses/equipment is by others.
Lab techs will handle hydraullic lines from Tees to the pumps and test frames
Blue World Construction
7/8/2026 1
General General
Please confirm if the existing 500 kip tube and fittings can be disconnected and either shifted or removed in order to install the new tubing required in the space where they currently reside.
500kip tubing can be shifted or removed.
Blue World Construction
7/8/2026 1
General General
Please confirm that relocation/removal of the existing equipment at the east/southeast trench where new connections are to be installed will be by others and completed prior to mobilization.
Necessary equipment will be moved as needed to complete the work
Blue World Construction
7/8/2026 1
General General
Please confirm that temporary removal and of steel trench covers will be by others and completed prior to mobilization. Please confirm if site personnel or contractor is responsible for re-installation/replacement of temporarily removed trench covers.
Trench covers will be removed by lab personnel
Blue World Construction
7/8/2026 1 General General
Please confirm if any permitting is required including confined space entry, hot work, etc.
No permitting required.
Blue World Construction
7/8/2026 1 General General
Please confirm the responsible party for material submittal review and approval.
Contract TPOC
Blue World Construction
7/8/2026 1
General General
Please confirm that P&P bonding is required, and that bid and/or maintenance bonding is not required.
Confirming Payment and Performance bonds are required. Bid guarantee is NOT required.
Blue World Construction
7/8/2026 1
General General
Please confirm that system startup support, system testing, system commissioining are not required for and following connection to hydraulic pumps, presses, and site equipment.
Not required. Must have a positive pressure test (no leaks) and flush the lines with Mobile DTE 25
Sheet1
File details come from the government source that posted it. Updated .