FORM SPEC.005 DA-ISTP-2C AWF, Revised 01/11	COPYRIGHT © 2011 SHIPPENSBURG PUMP COMPANY, INC. 
Shipco® IS A REGISTERED TRADEMARK OF SHIPPENSBURG PUMP CO., INC. 	PRINTED IN THE U.S.A. • BEIDEL PRINTING HOUSE, INC., 717-532-5063
SHIPPENSBURG PUMP COMPANY, INC., P.O. BOX 279, SHIPPENSBURG, PA 17257
PHONE 717-532-7321 • FAX 717-532-7704 • www.shipcopumps.com
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SUGGESTED SPECIFICATIONS	SHIPCO® PUMPS
TYPE .005 DA-ISTP-2C DEAERATING TWO COMPARTMENT PRESSURIZED BOILER FEED UNITS WITH AWF Boiler Feed PUMPS
CAPACITY SCHEDULE (on reverse side) MUST BE COMPLETED.
Furnish and install according to drawings and manufacturer’s instructions the quantity of .005 DA-ISTP-2C two compartment deaerating boiler feed units as shown on the drawings. The unit shall be nominally rated for _____ lbs/hr. The system shall be of the single tank two compartment design and guarantee oxygen removal to not more than .005 ccs/liter in the effluent throughout all load conditions between 5 and 100%. The unit shall consist of the following: (1) two compartment steel receiver with a quantity of _____ boiler feed pumps, (2) transfer pumps, (2) direct injection steam heating assemblies, (1) spray manifold in a 300 Series stainless steel deaeration cascade trays, (1) modulating transfer assembly, (1) solenoid valve and float switch assembly for make-up, electrical controls and accessories.
All controls switches and valves to have a NEMA _____ rating.
The boiler feed receivers shall be divided into two separate sections. The boiler feed or deaeration section and the accumulator or surge section shall be divided by a double inner head with the dead air space between the two inner heads to be packed with fiberglass insulation and have a breather and drain connection.
The receivers shall be welded steel construction, elevated to meet the NPSH requirements of the pumps (with 2 ft. of safety factor), horizontal with convex flanged and dished heads. The receivers shall be constructed of ASTM A285 Grade C steel, ASME Code Stamped for 50 PSIG with 1/16" corrosion allowance added, supported by steel tubing and have a capacity as shown on the drawings. The accumulator or surge section (since it is vented to atmosphere) shall be factory lined with a high quality baked-on epoxy lining. The lining is to be a Plasite #7156 lining which meets FDA and MID of the USDA or the entire vessel (both chambers) to be made out of 316L stainless steel. Magnesium anodes shall not be acceptable in this application since they will destroy linings.
The boiler feed or deaeration section shall be equipped with the following: (1) top and bottom shut-off water level gauge with automatic shut-off if glass is broken, (1) dial thermometer with separable well, (1) isolation valve in each boiler feed and transfer pumps bleed line for maintenance, (1) manhole for tank inspection, (1) stainless steel chemical feed quill, (1) sampling valve, (1) overflow drainer, (1) full size relief valve to relieve full capacity of the regulators, externally mounted high and low level alarm switches, low water cut-off switch and a level control to operate the standby transfer pump. A suction isolation valve and an expansion coupling shall be installed in the suction piping between the receiver and the pump(s) to permit servicing the pump(s) without draining the receiver. The individual pump suction piping (manifolded suction lines not acceptable) must be sized for a velocity of 2.9 ft./sec. or less and contain no suction strainers. A liquid filled discharge pressure gauge with snubbers shall be provided for each pump.
The surge or accumulator section shall be equipped with the following: (1) top and bottom shut-off water level gauge with automatic shut-off if glass is broken, (1) dial thermometer with separable well, (1) manhole, externally mounted high and low level alarm switches, low water cut-off switch. A suction isolation valve and an expansion coupling shall be installed in the suction piping between the receiver and the pump(s) to permit servicing the pump(s) without draining the receiver. The tank shall contain a vent and an overflow. The individual pump suction piping (manifolded suction lines not acceptable) must be sized for a velocity of 5 ft./sec. or less and contain no suction strainers. A liquid filled discharge pressure gauge with snubbers shall be provided for each pump.
A quick opening bypass shall be installed between the deaeration and accumulator compartments.
A 300 Series stainless steel deaeration cascade tray containing a spray manifold with stainless steel spray nozzles shall be flange mounted. The flanged opening shall be large enough to permit the manifold to be easily withdrawn for servicing. A dial thermometer and a pressure gauge shall be an integral part of the manifold assembly.
A modulating water transfer assembly shall be installed on the DA chamber. The assembly shall consist of a controller, transmitter and valve with a three-valve manual bypass and wye strainer.The capacity of the transfer valve shall be equal to 100% of the load with a 10 PSIG drop across the valve. Transfer assembly will also send 4-20mAmp signals remotely as needed as well as alarms
Two direct injection steam heating assemblies shall be installed in the receiver. The deaeration assembly and the sustaining assembly shall consist of a double flange mounted stainless steel injection pipe, steam control valve, pressure/temperature regulator, wye strainer and (1) compound gauge for measuring vacuum or pressure gauge on unit. The heating assemblies shall be sized for the capacities and locations as shown on the drawings.
The make-up water assembly located in the accumulator compartment shall be sized to equal to 100% of the load at a 50 PSIG supply pressure with a 25 PSIG drop across the valve. The solenoid valve shall be packless, piston pilot operated with cushioned closing and have an epoxy resin molded waterproof coil. The valve shall be equipped with a wye strainer, and a 3-valve manual bypass.
The centrifugal boiler feed pumps shall be mounted on the receiver suction piping. The pump shall be (Horizontal or Vertical) a multi-stage cast iron construction with bronze wearing rings. The impeller(s) shall be Bronze for long life and durability. The pump shall be flexible coupled permanently aligned with a C-face motor connected to the bearing housing which is C-face connected to the pump. The bearing frame shall be designed with grease fittings for bearing lubrication. Bearings shall be extra heavy ball type with high temperature grease. The pump shall be fitted with a seal flush line designed to keep the seal cavity pressure at or below 50 psig. The pump suction flange shall be an ASA design. The pump discharge shall be also be an ASA flange design. The Silicon Carbide/ Viton seal shall be rated for 300°F service. The entire pump shall be dynamically balanced to deliver its full rated capacity with _____ feet of NPSH. The pump shall have a NEMA standard shaft. The horsepower and electrical characteristics shall be as shown on the drawings.
The centrifugal transfer pumps must run continuously and shall be mounted on the receiver suction piping. The pumps shall be close coupled design.. The pump shall be a cast bronze impeller that is bronze fitted to the cast iron pump housing with a renewable bronze wearing ring. The mechanical seal shall be rated for 300°F service. The entire pump assembly shall be permanently aligned and dynamically balanced to deliver its full rated capacity. The motor shall have a NEMA standard shaft. The horsepower and electrical characteristics shall be as shown on the drawings.

Each boiler feed pump will have a factory installed automatic flow control valve in the discharge of each pump.
Each continuously running boiler feed pump 71/2 Horsepower and larger will have a factory installed bypass line with a stainless steel orifice.
The manufacturer shall furnish a certified pump performance and NPSH test. The pump manufacturer shall furnish complete elementary and connection wiring diagrams and installation and operation instructions.
The entire pump package will be U.L. labeled when a control panel is furnished.
Electrical control specifications must be added. See electrical specifications for boiler feed pumps and transfer pumps.
Manufacturer shall be Shipco® PUMPS, P.O. Box 279, Shippensburg, PA 17257.
Capacity Schedule (Required to complete suggested specifications).
TYPE .005 DA-ISTP-2C DEAERATING TWO COMPARTMENT PRESSURIZED
BOILER FEED PUMPS SCHEDULE:
Two compartment Receiver:  Total  __________ gallons or __________ gallons in DA section and __________ gallons in the Surge Section ,   __________ " dia. x __________ " long, elevated __________ inches
Quantity: __________ boiler feed pumps each rated __________ GPM @ __________ PSIG with __________  HP 
and Motor Enclosure of __________; 3500 RPM; requiring ______ ft. of NPSH
Quantity __________ transfer pumps each rated __________ GPM at  35  PSIG_________ RPM, Motor Enclosure __________
Supply electrical characteristics __________ volts, __________ phase, 60 cycles
Control voltage: 115 volts, 1 phase, 60 cycles ;   Water supply pressure __________ PSIG
Steam heating assemblies sized to heat _______ GPM from _______ °F to 227°F with _______ PSIG steam supply pressure