Manual

ManualsBrandsBell & Gossett ManualsHeat Exchangers125,000 BTU/Hr Low Pressure BPX Brazed Plate Heat Exchanger

Small size. Big impact.

Mechanical Design:

Design pressures up to 435 psig.

Maximum design temperature up to 450˚F.

Minimum design temperature to -310˚F.

Connections:

From 1/2 inch to 4

inch. Standard

connection options

include NPT, SAE

Flanged and Sweat.

Custom connections

available.

Capacity:

Up to 800 GPM

and 350 Sq.ft.

of surface area.

Construction Codes:

Available codes

include UL, CRN, and

ASME Code Stamp.

Mounting:

Reduce mounting

costs with optional

threaded studs or

integral mounting

bracket.

Materials:

Stainless Steel 316L

plates. Copper

brazed material.

By using a brazing process we

eliminated the need for gasketed

or rolled joints commonly found in

traditional exchangers. This allows

for higher operating pressures and

temperatures with no maintenance

and no leaks. The corrugated

plates easily handle highly viscous

ﬂuids, turbulating them for

maximum efﬁ

ciency

. Corrosion-

resistant materials ensure a long

operating life.

Cover plates ASTM 316L Stainless Steel

Channel plates ASTM 316L Stainless Steel

Connections ASTM 316L Stainless Steel

M26 NPT, SAE

Flanged and Sweat Connections available

Brazing material Copper

STANDARD CONSTRUCTION

UL, CRN, ASME Code Stamp option.

CONSTRUCTION CODES

Design Pressure 435 psi (30 bar)

Design temperature 450 F (224 C )

TECHNICAL DATA

STANDARD CONSTRUCTION

F1 F2

F4 F3

(n * F)

DIMENSIONS

Model A B C D E F Volume Surface Area Max no.

in. mm. in. mm. in. mm. in. mm. in. mm in. mm Connection Gal /chnl. (L/chnl.) Sq. Ft. (Sq. M) of plates

BP400 6.77 172 8.2 208 1.65 42 3.1 79 0.95 24 0.081 2

/4” MNPT 0.0076 0.029 0.126 0.012 50

BP410 9.84 250 12.2 310 1.97 50 4.4 112 0.95 24 0.094 2 1” MNPT 0.0159 0.060 0.281 0.026 150

BP411 9.84 250 12.2 310 1.97 50 4.4 112 0.95 24 0.094 2 1” MNPT 0.0159 0.060 0.28 0.026 150

BP412 9.84 250 12.2 310 1.97 50 4.4 112 0.95 24 0.094 2 1” MNPT 0.0159 0.060 0.281 0.026 150

BP415 18.35 466 20.7 526 1.97 50 4.4 112 0.95 24 0.094 2 1”MNPT 0.073 0.103 0.566 0.053 150

BP422 20.43 519 24.3 617 3.62 92 7.5 191 1.9 48 0.112 3 2” MNPT 0.0704 0.266 1.062 0.099 150

Designed for dependability.

P400-10 25,000 2.6 1.7 2.6 1.2 NRF-22 3/4"

P400-10 30,000 3.1 2.4 3.0 1.6 NRF-22 3/4"

BP400-10 35,000 3.6 3.1 3.5 2.1 NRF-22 3/4"

BP400-10 40,000 4.1 4.0 4.0 2.8 NRF-36 3/4"

BP400-10 45,000 4.6 5.0 4.5 3.4 NRF-36 1"

BP400-10 50,000 5.2 6.1 5.0 4.2 NRF-36 1"

BP400-10 60,000 6.2 8.6 6.1 5.9 NRF-36 1"

P400-20 75,000 7.7 3.0 7.6 2.6 NRF-36 1"

BP400-20 100,000 10.3 5.2 10.1 4.4 NRF-36 1-1/4"

BP400-20 125,000 12.9 7.9 12.6 6.8 NRF-36 1-1/4"

P400-30 150,000 15.5 5.3 15.2 4.9 NRF-36 1-1/4"

P400-30 175,000 18.0 7.1 17.7 6.5 PL-36 1-1/4"

BP400-40 200,000 20.6 5.8 20.2 5.5 PL-36 1-1/2"

BP400-40 225,000 23.2 7.3 22.7 6.9 PL-55 1-1/2"

BP411-20 250,000 25.8 3.3 25.2 3.0 PL-75 2"

BP411-20 275,000 28.3 4.0 27.8 3.6 PL-50 2"

P411-20 300,000 30.9 4.7 30.3 4.2 PL-55 2"

BP411-20 350,000 36.1 6.3 35.3 5.6 PL-55 2"

P411-30 400,000 51.2 4.8 40.4 4.6 601 2"

BP411-30 450,000 46.4 6.1 45.4 5.8 607 2"

BP411-30 500,000 51.5 7.4 50.5 7.1 608 2"

P422-40 600,000 61.8 8.1 60.6 7.6 609 2-1/2"

BP422-50 700,000 72.1 7.1 70.7 6.8 612 2-1/2"

BP422-60 800,000 82.4 6.5 80.8 6.3 612 2-1/2"

BP422-80 900,000 92.7 4.9 90.9 4.8 611 3"

P422-80 1,000,000 103 6.0 101.0 5.9 612 3"

BP422-80 1,100,000 113.3 7.2 111.1 7.1 625 3"

BP422-100 1,200,000 123.6 5.9 121.2 5.8 625 3"

BP422-100 1,350,000 139.1 7.5 136.3 7.4 619 3"

odel

EAT

EXCHANGER

BTU/Hr

RADIANT

ATER SIDE

OILER SIDE

Pressure

Flow Drop

GPM PSI

IPE

SIZE

RADIANT FLOOR HEATING—

SECTION SCHEDULE BASIS

Boiler Side: Water: 180 F Supply, 160 F Return Radiant Floor Side: 120 F Supply, 100 F Return

Pressure

Flow Drop

GPM PSI

(max output)

ssumptions: 50 ft. of total equivalent length of pipe at sizes shown,

1/2” PEX, 0.8 gpm, longest radiant loop is 200 ft., 40 BTU/hr per ft

arger Models available

upon request

PUMP

SELECTION

BP400-10 25,000 1.0 0.3 0.6 0.1 NBF-9U 3/4"

P400-10 30,000 1.2 0.4 0.7 0.1 NBF-9U 3/4"

P400-10 35,000 1.4 0.6 0.8 0.1 NBF-9U 3/4"

BP400-10 40,000 1.7 0.7 0.9 0.2 NBF-9U 3/4"

BP400-10 45,000 1.9 0.9 1.0 0.2 NBF-9U 3/4"

P400-10 50,000 2.1 1.1 1.1 0.2 NBF-9U 3/4"

BP400-10 60,000 2.5 1.6 1.3 0.3 NBF-9U 3/4"

BP400-20 75,000 3.1 0.6 1.7 0.2 NBF-9U 3/4"

BP400-20 100,000 4.1 1.0 2.2 0.3 NBF-9U 3/4"

BP400-20 125,000 5.2 1.5 2.8 0.4 NBF-9U 3/4"

BP400-20 150,000 6.2 2.1 3.3 0.6 NBF-9U 3/4"

P400-30 175,000 7.2 1.4 3.9 0.4 NBF-9U 3/4"

BP400-30 200,000 8.3 1.8 4.4 0.5 NBF-9U 1"

BP400-30 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"

BP400-40 250,000 10.3 1.8 5.6 0.5 NBF-9U 1"

P400-40 275,000 11.4 2.1 6.1 0.7 NBF-9U 1"

P400-40 300,000 12.4 2.5 6.7 0.8 NBF-9U 1"

BP400-40 350,000 14.4 3.4 7.8 1.0 NBF-9U 1"

BP410-30 400,000 16.5 4.9 8.9 1.4 NBF-12 1-1/4"

P411-30 450,000 18.6 6.2 10.0 1.8 NBF-12 1-1/4"

P411-30 500,000 20.6 7.6 11.1 2.2 NBF-12 1-1/4"

BP410-40 600,000 24.8 6.2 13.3 2.0 NBF-22 1-1/4"

BP410-40 700,000 28.9 7.7 15.6 2.8 NBF-22 1-1/2"

P410-50 800,000 33.0 6.9 17.8 2.4 NBF-33 1-1/2"

BP410-50 900,000 37.1 8.5 20.0 3.0 NBF-33 1-1/2"

BP422-30 1,000,000 41.3 5.9 22.2 2.2 NBF-33 1-1/2"

BP422-30 1,100,000 45.4 7.0 24.4 2.6 NBF-33 2"

P422-30 1,200,000 49.5 8.0 26.7 3.2 NBF-36 2"

BP422-40 1,350,000 55.7 6.1 30.0 2.2 NBF-36 2"

BP422-40 1,500,000 61.9 7.5 33.3 2.8 NBF-45 2"

BP422-50 1,750,000 72.2 6.7 38.9 2.4 PL-45 2"

BP422-50 2,000,000 82.5 8.4 44.4 3.0 PL-50 2"

BP422-60 2,500,000 103.1 9.0 55.5 3.5 PL-75 2-1/2"

odel

HEAT

XCHANGER

TU/Hr

OMESTIC

ATER SIDE

BOILER SIDE

Pressure

Flow Drop

GPM PSI

PIPE

IZE

DOMESTIC WATER—

SECTION SCHEDULE BASIS

Boiler Side: Water: 180 F Supply, 130 F Return Domestic Water Side: 50 F Supply, 140 F Return

Pressure

Flow Drop

GPM PSI

(max output)

Assumptions: 20 ft. of copper pipe with (6) 90 deg elbowsLarger Models Available

B&G

UMP

ELECTION

BP400-10 25,000 2.6 1.7 1.8 0.7 NRF-36 3/4"

BP400-10 30,000 3.1 2.4 2.1 0.9 NRF-36 3/4"

BP400-10 35,000 3.6 3.2 2.5 1.3 NRF-36 3/4"

BP400-10 40,000 4.1 4.1 2.9 1.6 NRF-36 3/4"

BP400-10 45,000 4.6 5.1 3.2 2.1 NRF-36 3/4"

BP400-10 50,000 5.2 6.2 3.6 2.5 NRF-36 3/4"

BP400-10 60,000 6.2 8.7 4.3 3.5 NRF-36 1"

BP400-20 75,000 7.7 3.1 5.4 1.6 NRF-36 1"

BP400-20 100,000 10.3 5.4 7.1 2.7 NRF-36 1"

BP400-20 125,000 12.9 8.2 8.9 4.2 NRF-36 1-1/4"

BP400-30 150,000 15.5 5.8 10.7 3.1 NRF-36 1-1/4"

BP400-30 175,000 18.0 7.8 12.5 4.2 PL-36 1-1/4"

BP400-40 200,000 20.6 6.7 14.3 3.6 PL-36 1-1/4"

BP400-40 225,000 23.2 8.4 16.1 4.6 PL-55 1-1/4"

BP412-20 250,000 25.8 8.4 17.9 4.0 PL-55 1-1/2"

BP412-30 275,000 28.3 4.9 19.6 2.5 PL-55 1-1/2"

BP412-30 300,000 30.9 5.8 21.4 2.9 PL-55 1-1/2"

BP412-30 350,000 36.0 7.7 25.0 3.9 PL-55 1-1/2"

BP412-40 400,000 41.2 6.5 28.6 3.4 PL-55 2"

BP412-40 450,000 46.4 8.1 32.1 4.2 613 2"

BP412-50 500,000 51.5 7.6 35.7 4.0 613 2"

BP422-40 600,000 61.8 8.1 42.9 4.4 609 2"

BP422-50 700,000 72.1 7.1 50.0 3.9 614 2"

BP422-60 800,000 82.4 6.6 57.4 3.6 613 2-1/2"

BP422-60 900,000 92.7 7.7 64.3 4.8 614 2-1/2"

BP422-80 1,000,000 103.0 6.0 71.4 3.3 614 2-1/2"

BP422-80 1,100,000 113.3 7.3 78.6 4.1 616 2-1/2"

BP422-80 1,200,000 123.6 8.2 85.7 4.9 625 3"

BP422-100 1,350,000 139.1 7.4 96.4 4.1 625 3"

Model

Assumptions: 50 ft. of total equivalent length of pipe at sizes shown,

5/8” PEX, 2.0 gpm, longest radiant loop is 250 ft., 126 BTU/hr per ft

Larger Models Available

HEAT

EXCHANGER

BTU/Hr

SNOW MELT

WATER SIDE

BOILER SIDE

Pressure

Flow Drop

GPM PSI

PIPE

SIZE

S N OW ME L T—

SECTION SCHEDULE BASIS

Boiler Side: Water: 180 F Supply, 160 F Return Snow Melt Side: 40% P.G. 130 F Supply, 100 F Return

Pressure

Flow Drop

GPM PSI

(max output)

B&G

PUMP

SELECTION

BP400-10 2,000 33,300 1.37 0.52 1.8 0.63

BP400-10 4,000 66,600 2.75 1.9 3.6 2.3

BP400-10 6,000 99,900 4.1 4.1 5.4 5

BP400-20 8,000 133,200 5.5 1.66 7.3 2.5

BP400-30 10,000 166,823 7.0 2.3 9.0 5.1

BP400-30 15,000 250,234 10.0 2.7 14.0 4.5

BP412-20 20,000 333,645 13.0 2.5 18.0 3.4

BP412-20 25,000 417,056 17.2 4.0 22.6 5.5

BP412-20 30,000 500,467 20.7 5.6 27.2 7.7

BP412-30 40,000 667,290 27.0 3.9 36.0 6.9

BP422-30 50,000 834,113 34.4 4.7 45.2 7.6

BP422-40 60,000 1,000,936 40.0 3.7 54.0 6.9

BP422-40 70,000 1,167,758 48.0 5.1 63.0 8.2

BP422-50 80,000 1,334,581 53.0 3.7 72.0 6.9

BP422-50 90,000 1,501,400 62.0 5.3 81.3 8.6

BP422-60 100,000 1,668,226 67.0 4.7 90.0 7.9

BP422-80 120,000 2,001,871 82.5 3.9 108.0 6.9

BP422-100 150,000 2,502,000 103.2 4.2 135.6 7.4

Model (3)

1) Provides approx. 2°F per hour heating with 180°F boiler to achieve 80°F pool temperature.

2) Pool water flow rate usually requires flow by pass from main pool circulation.

3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine

levels is required or alternate materials of construction should be considered.

Larger Models

Available

POOL SIZE

GALLONS (1)

HEAT

EXCHANGER

BTU/Hr

BOILER SIDE

POOL SIDE

PRESSURE

DROP

PSI

POOL WATER

FLOW (2)

GPM

SWIMMING POOL—

SECTION SCHEDULE BASIS

Boiler Side: Water: 180 F Supply, 130 F Return Pool Heating Side: 70 F Supply, 107 F Return

Pressure

Flow Drop

GPM PSI

(max output)

Selection Tables*

* Consult your local B&G Representative for more

detailed sizing and selection information