17-T-0026_Nitrogen_Specifications.pdf

REQDOCNO. - 6279V065 ATTACHMENT 1 ---

CONTINUATION SHEET CONTRACT NO. - PAGE

_\ OF~

NAME OF OFFEROR/CONTRACTOR

!ITEM# SUPPLIES/SERVICES QTY U/I

SERVICE 1 JO

C. DESCRIPTION/SPECIFICATIONS.

CJ RENTAL OF TWO (2) 1500 GALLON LIQUID NITROGEN TANKS PER

ATTACHMENT 1 TECHNICAL REQUIREMENTS, EACH WITH ATTACHED

VAPORIZER.

THE EQUIPMENT SHALL BE DELIVERED IN FIRST CLASS OPERA TING

CONDITION WITH COMPLETE OPERATING INSTRUCTIONS.

THE CONTRACTOR SHALL MAINTAIN A STRINGENT MAINTENANCE

PROGRAM AND SHALL BE RESPONSIBLE FOR ALL REPAIRS AND

MAINTENANCE FOR THE DURATION OF THE RENTAL.

THE CONTRACTOR SHALL PROVIDE SERVICE WITHIN EIGHT (8) HOURS

AFTER NOTIFICATION BY THE CONTRACTING OFFICER OR

REPRESENTATIVE. IN THE EVENT THE CRYOGENIC STORAGE TANK

CANNOT BE RETURNED TO SERVICE WITHIN TWENTY-FOUR (24) HOURS

OF NOTIFICATION, A REPLACEMENT SHALL BE DELIVERED AT NO EXTRA

CHARGE TO THE GOVERNMENT.

THE CONTRACTOR SHALL BE RESPONSIBLE FOR EQUIPMENT FAILURE

NOT ARISING OUT OF ABUSE OR NEGLEGENCE BY THE GOVERNMENT.

RENTAL REQUIRED FROM: 11/1116 TO 8/1/18.

C.2 C528 SPECIFICATION CHANGES.

C.3 C500 MERCURY CONTROL.

D. PRES ERV A TION/P ACKAGING/P ACKING.

D.1 D4 PREPARATION FOR DELIVERY (COMMERCIALLY PACKAGED).

E. INSPECTION AND ACCEPTANCE.

E.1 E2 INSPECTION AND ACCEPTANCE (DESTINATION).

E.2 G505 VENDOR DISPOSITION OF NON-CONFORMING MATERIAL.

ATTACHMENT 1

NITROGEN TANK TECHNICAL REQUIREMENTS

The rental agent shall provide that each liquid nitrogen storage tank shall have the following minimum attributes:

A cryogenic storage tank of either vertical or horizontal configuration with:

(1) Capacity to store 1500 gallons (U.S.) ofliquid nitrogen.

(2) A maximum operating pressure (inner vessel) of250 PSIG.

(3) An external tank mounted atmospheric vaporizer with a capacity to provide up to 2000

SCFH of nitrogen gas and associated components.

(4) A pressure building coil and regulator circuit and associated components.

(5) An economizer regulator circuit and associated components.

(6) A standard 1-Yz" fill connector with a 1" bottom fill valve and a 1" top fill valve. Fill line required to be elevated and secured to frame.

(7) A check valve in the fill line.

(8) A %" or 1" liquid withdrawal valve.

(9) A %" or 1" vent blowdown valve.

(10) A full trycock valve.

(11) A liquid level gauge reading in inches of water with a corresponding chart indicating the liquid content of the tank in gallons (chart for liquid nitrogen at -320 degrees FI 250 psig max operating pressure).

(12) A tank pressure gauge to indicate inner vessel pressure in PSIG.

(13) At least one tank safety pressure relief valve to protect the inner vessel (two preferred) that is/are stamped with date code within 5 years of date for projected use.

(14) A tank safety rupture disc to protect the inner vessel.

(15) Thermal safety valves at all points where liquid nitrogen might be isolated between shut-off valves.

(16) A vacuum isolation valve.

(17) A vacuum thermocouple isolation valve and thermocouple electrical connector.

(18) A vacuum of 100 microns or less at time of delivery.

(19) A schematic diagram of the tank identifying all components.

(20) A permanent ID tag attached to each component corresponding to the schematic diagram.

(21) A permanent tag attached to each pressure relief device indicating the set pressure in

PSIG, the date the device was tested or installed and the agency or company that performed the test.

(22) Each tank shall be a new or re-manufactured unit in excellent operating condition capable of immediate operation upon delivery. Tanks may be delivered in a dry or pre-chilled condition.

(23) Orifices/openings capped for delivery following visual inspection indicating no grease, oil, or foreign particles present. '

(24) Owners manual OR provide schematic with valve designation.

(25) Shipyard will provide tank off load capability but requires a two day notice of delivery to the Shipyard point of contact.

(26) Each tank shall be clearly marked with the applicable contract number and contract expiration date in letters/numbers a minimum of 2" high. All invoices forwarded to Portsmouth Naval Shipyard for payment shall include the applicable contract number.

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