Last updated:
Wednesday, 23 May 2012

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Condensate Return/Boiler Feedwater Systems

Condensate Return/Boiler Feedwater System

Manage Condensate for Efficient Operation

Precision Boilers' Model CF boiler feed systems are designed to receive condensate, accommodate condensate surges, and, when condensate return is insufficient, automatically add make-up to maintain sufficient boiler or deaerator water supply.  Standard receiver tanks are vented (non-code) and are constructed of hiqh quality 1/4" thick carbon steel.

Make-up valves are either internal or external float-operated to maintain a minimum water level.  Systems can be supplied with single or multiple pumps (with starters and controls), plus optional items such as alternators, alarm systems, auto standby provision, sparge-tube preheat system, makeup water spray valve, special tank materials/linings, etc.

Condensate Return/Boiler Feedwater System
Dimensional Data

Components

Model Numbers, Ratings and Dimensions

Model Number*Tank Capacity (gal)Max Boiler Rating**Overall Dimensions (IN.)Standard ConnectionsApprox. Ship Wt. (lbs)****
HPKWLWH***Return & Vent (in)
Overflow(in)Make-Up & Drain (in)
CF-16-02020151502416481-1/21-1/21/2"250
CF-16-03030232303616481-1/21-1/21/2275
CF-20-04040303003020541-1/21-1/21/2325
CF-20-05050383803820541-1/21-1/21/2350
CF-20-06060454504520541-1/21-1/21/2375
CF-24-0757556560402460223/4450
CF-24-10010075750522460223/4475
CF-24-12512595940662460323/4500
CF-30-1451451101090483066333/4600
CF-30-1801801351350603066333/4650
CF-30-2152151601610723066333/4700
CF-36-2602602001950603672431850
CF-36-3153152402360723672431900
CF-36-3653652752740843672431950
CF-42-4304303253230724278431-1/41150
CF-42-5005003753750844278431-1/41225
CF-48-65065049048808448845F41-1/21400
CF-48-75075056056309648845F41-1/21500
CF-48-850850640638010848845F41-1/21600
CF-48-950950720713012048845F41-1/21700

* Suffix Model Number with S, D, or T to signify Simplex (1 pump), Duplex (2 pump) or Triplex (3 pump).  **Based on 10 minute storage and one pump sized @ twice the steaming rate.  ***Height may vary due to installation limitations and/or pump NPSH requirements.  ****Add pump weight(s) to obtain total shipping weight.


Condensate Return/Boiler Feedwater System

Specification

Note:  items shown in parenthesis () are options.

1. General

Furnish and install as shown on the plans a Condensate Return/Boiler Feedwater System, fabricate per these specifications, including all accessories and construction features as described herein.

2. Tank

Tank shall be ______ gallon capacity (non-code) (code) (ASME Section VIII) of nominal dimensions ______diameter x _____long with flat heads (non-code) or dished heads (code).  Connections shall included anti-vortex pump suction, overflow, return, vent, drain and all necessary connections for sigh gauge, makeup valve, and thermometer.

3. Pumps

Quantity ______ boiler feed pump(s) will be supplied.  Pump(s) shall be (centrifugal) (turbine) type with mechanical seals.  Pump(s) will have a capacity of ______ GPM@_____PSIG for 210 °F water.  Pump(s) shall be driven by ______HP, ______VOLT, _____PHASE, _____HERTZ, _____RPM (ODP) (TEFC) Motor(s).

4. Connections

Pump(s) will be piped to tank suction with full port ball valve(s) and strainer(s).  Suction piping shall also include flexible coupling(s).  Control Panel to be complete with hand-off auto switch(es), pilot light(s) and magnetic starter(s) in a NEMA number ______enclosure.  Panel shall be mounted on steel unit frame and wired to motor(s) using liquid-tight conduit system (Optional UL Panel Available).

5. Makeup Controls

Make-u- control value shall be (internal) (external) and shall have a capacity equal to the total evaporation rate of the boiler(s) at a minimum water pressure of 40 PSIG.

6.  Trim

System trim shall include sight gauge with bronze shut off cocks, drain, glass, and glass protector rods, bi-metal thermometer, drain valve, and optional items as listed.

7.  Manufacturer

System shall be Precision Boilers Model CF-_______-_______ or approved equivalent.

Specifications subject to change without notice. 

Condensate Return/Boiler Feedwater Systems (pdf)