Requirements.docx

Hydraulic Power Unit

1. Background

The Naval Undersea Warfare Center Division Newport (NUWCDIVNPT), Code 153, requires a Hydraulic Power Unit (System) to replace a legacy unit in the Towed Array Handler Land Based Test Facility (LBTF) located at NUWCDIVNPT (Towed Array Handler OA-9070B).

2. Scope

2.1. This specification establishes the performance and acceptance requirements for the Hydraulic Power Unit (hereafter referred to as “the system”).

3. Government Furnished Materials

3.1. Government Documents

3.1.1. The following documents of the issue in effect on date of Request for Proposal form a part of the specification to the extent specified herein.

3.1.2. Specifications

· ISO 4413:2010 – Hydraulic Fluid Power – General rules and safety requirements for systems and their components

· MIL-PRF-17672 – Hydraulic Fluid, Petroleum, Inhibited

· MIL-T-28800 – Test Equipment for Use with Electrical and Electronic Equipment, General Specification for

3.1.3. Copies of specifications, standards, drawings, and publications required by offerors in connection with this requirement will be provided by the Government.

3.2. Equipment

3.2.1. The facility shall provide a fuse or circuit breaker as GFE.

3.2.2. The facility shall provide existing heat exchanger as GFE.

4. Requirements

4.1. Physical

4.1.1. The system shall be able to be operated from the equipment space.

4.1.2. The system shall be able to be operated from the adjacent control room.

4.1.3. The system shall be equipped with interlocks on device signals.

4.1.4. The system shall fit into an area five feet by eight feet by seven feet.

4.1.5. The system shall be adapted to existing LBTF hydraulic lines.

4.1.6. The system shall be adapted to existing LBTF electric power.

4.2. Performance

4.2.1. The system shall be capable of 13 gallons per minute (gpm) at 3100 pounds per square inch (psi).

4.2.2. Supply pressure to LBTF shall be 2250 to 3000 psi.

4.2.3. Supply flow rate available to the LBTF shall be 11.5 gallons per minute.

4.2.4. Return pressure from the LBTF shall be 50 to 150 psi (nominal), 600 psi (maximum).

4.3. Detailed Requirements

4.3.1. The system shall have a motor with soft start.

4.3.2. The system shall have a 100-gallon reservoir.

4.3.3. Reservoir shall be equipped with temperature and level transducer.

4.3.4. The system shall use a Parker PV040 or equal 5000 psi piston pump.

4.3.5. The system shall have pressure gauges.

4.3.6. The system shall have high pressure relief valves.

4.3.7. The system shall have high pressure filter with bypass.

4.3.8. The system shall have return filter with bypass.

4.3.9. The system shall be equipped with a kidney loop filtration system.

4.3.10. The system shall be installed with wiring/communication between the system and control room.

4.3.11. The system shall be designed with appropriate safety shields, guards, and other features to promote safe operation with minimum risk to the operator and personnel.

4.3.12. The system shall incorporate emergency stop controls.

4.3.13. The system shall be equipped with alarms for high/low pressure.

4.3.14. The system shall be equipped with alarms for high/low temperature.

4.3.15. The system shall be equipped with alarms for high/low fluid level.

4.4. Control/Software

4.4.1. The system shall support remote start/stop and emergency stop functions.

4.4.2. The system shall support local start/stop and emergency stop functions.

4.5. Interfaces

4.5.1. The system shall integrate with current LBTF hydraulic lines.

4.5.2. The system shall integrate with current facility provided power.

4.5.3. The system shall be compatible with the current heat exchanger.

4.6. General

4.6.1. The vendor shall install the system.

4.6.2. The vendor shall remove and dispose of any old equipment and hydraulic fluid.

4.6.3. The vendor shall provide new hydraulic fluid.

4.6.4. The new hydraulic oil shall be type MIL-PRF-17672 symbol 2075TH.

4.6.5. The system design shall be able to withstand power interruptions as defined in MIL-T-28800 (revision F section 3.5.1.2.3).

4.6.6. The system shall return to power-up condition when power has been restored per MIL-T-28800 (revision F section 3.5.1.2.3).

4.6.7. Power up condition of the system shall not allow for movement of hydraulic motors in LBTF.

4.6.8. The system shall be anchored to the facility floor.