Counter Flow Cooling Towers

Counter
Flow
Cooling
Towers

PCT Series
DESIGN FEATURES
Protec round, fiberglass cooling towers are available for comercial, institutional and
industrial applications.

DURABILITY
Our cooling towers are manufactured with non-corrosive materials, which result in a longer
life with minimum maintenance. Protec Cooling Towers do not rot or rust like conventional
towers because all main parts are fiberglass reinforced polyester (FRP) and rigid poly-vinyl
chloride (PVC). This eliminates the need for painting and repairs, reducing maintenance
cost and guaranteeing long dependable service.

ENERGY EFFICIENCY
The efficiency of the round, bottle-style Protec Cooling Tower is not only thermal, but
operational, a fact that one should seriously take into consideration when choosing a
cooling tower.
Our 360 degree air intake and lower Hface velocity through the fill offers less
H
air resistance, therfore requiring less motor horsepower than other cooling towers, and
guaranteeing considerable electric energy savings.

MOTORS AND FANS

All fan motors are water-proof and totally enclosed. (TEFC & TEAO). All fan blades are
reinforced nylon, aluminum alloy or fiberglass (FRP) with adjustable pitch. Blade pitch is
pre-set and balanced at factory.

PCT Series
PVC FILL
The efficiency of a cooling tower depends upon its
fill. The Protec Fill is made of rigid PVC film of
flame retardant quality with high heat exchange
efficiency. This fill is suitable for operation with
inlet water temperature up to 130 degrees
Fahrenheit (54C).
The High efficiency fill reduces the motor input HP
and assures uniform distribution of water, with
minimum resistance to air flow.

WATER DISTRIBUTION SYSTEM

The inlet water pressure will rotate the sprinkler
pipes to distribute the water evenly over the entire
surface of the fill, ensuring maximum performance
capability. Protecs sprinkler pipes have non-clog
openings and are corrosion resistant. Distribution
headers for models up to PCT-80 are constructed
of polyacetal, and for larger models, bronze.
A water eliminator blade is located above each
water distribution pipe to avoid carry-over of water.

TOWER SUPPORT STAND

For smaller towers, the support stand is made of
fiberglass (FRP). For the larger models, all steel
members are hot dip galvanized. Stainless steel
parts are also available as an option.
Note: All fastners are standard. Stainless Steel on
all models.

PCT Series
GUARANTEE
The FRP casing and basin are guaranteed against defective materials and workmanship
for a period of five years. The rest of the components are guaranteed for a period of one
year. Five years are available at an additional cost. When returned to PROTEC with
transportation prepaid, all parts found by factory inspection to be defective will be repaired
or replaced without charge, FOB our plant.
No liability will be assumed for loss or damage resulting from the misuse of our products.
Also, operating conditions should be in accordance with the name plate on the tower.

NOTES
1. Pump head is obtained by adding resistance of piping, pressure drop of equipment
and cooling tower.
2. Spring Vibration Isolators cannot be installed directly underneath the support legs.
Please contact the factory for installation details of your specific application.
3. Our model numbers are equivalent to tons when the selection is based on
3GPM/TON at 95F inlet water temperature, 85F outlet water temperature and 75F
ambient wet bulb temperature.
4. For motors 7.5 HP and above, installation of stardelta or soft start starter is
recommended.
5. CONTINUING ENGINEERING RESEARCH RESULTS IN STEADY IMPROVEMENTS.
THEREFORE, THESE SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE
WITHOUT NOTICE. PLEASE CONTACT PROTEC TO CONFIRM DIMENSIONS.
6. The cooling tower must be located at such distance and direction to avoid the possibility
of contaminated tower discharge air being drawn into building fresh air intake ducts. It is
recommended to consult with a Licensed Professional Engineer to certify the location of
the cooling tower.
7. Water Treatment must be supplied and/or applied by a professional in the field in order
to avoid fill damage. It is the users/owners responsibility to treat the water in order to
stop biological contaminations and avoid, among other bacterium, the Legionnaires
Disease.
For inquiries about PROTEC Cooling Towers, please contact our local representative
or our engineering department and specify the following conditions:
a)

circulating water flow

b)

circulating water inlet temperature

c)

circulating water outlet temperature

d)

ambient wet bulb temperature

e)

power source-voltage / phase / frequency

PCT Series
QUICK SELECTION CHART
The capacities shown in this chart are for guidance purpose only and are the maximum each model can handle when 3 GPM
of water per ton enter 95F and leave 85F. Please refer to the wet bulb of the area where the cooling tower will operate.
For other values, please consult our local representative or our engineering department.
WET BULB F

MODEL
PCT-8
PCT-10
PCT-15
PCT-20
PCT-30
PCT-40
PCT-50
PCT-60
PCT-80
PCT-100
PCT-125
PCT-150
PCT-175
PCT-200
PCT-250
PCT-300
PCT-350
PCT-400
PCT-500
PCT-600
PCT-700
PCT-800
PCT-1000

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

TONS

12

12

12

11

11

10

10

80
5

GPM

37

36

35

34

32

31

30

28

26

25

23

21

19

18

16

14

TONS

15

15

15

14

13

13

12

11

11

10

10

GPM

46

45

44

42

40

39

37

34

32

31

29

27

24

24

21

19

TONS

24

23

22

21

20

20

19

17

16

15

15

13

12

11

10

GPM

71

68

66

64

61

59

56

52

49

46

44

40

36

33

31

28

TONS

31

30

29

28

27

26

25

23

22

21

20

18

17

16

14

13

GPM

93

90

88

84

82

79

74

69

66

63

60

54

50

48

43

39

TONS

47

47

44

43

42

39

38

35

33

32

30

27

25

23

21

19

GPM

140

140

133

128

125

118

113

105

100

96

90

82

74

69

64

58

TONS

60

60

58

56

54

52

50

46

43

42

40

37

33

31

29

26

GPM

180

180

175

168

163

155

150

138

130

125

120

110

100

93

86

78

TONS

77

73

70

67

65

66

62

58

55

52

50

45

42

39

35

33
98

GPM

230

220

210

201

195

197

186

175

165

157

150

135

125

117

105

TONS

93

90

90

87

83

81

77

71

67

63

60

55

50

47

42

38

GPM

280

270

270

260

250

242

230

212

200

190

180

165

150

141

125

115

TONS

113

113

110

107

103

100

97

92

87

83

80

73

68

64

58

53

GPM

340

340

330

320

310

300

290

275

260

250

240

220

205

192

175

160

TONS

157

153

150

143

137

133

127

115

108

103

98

90

82

77

68

62
185

GPM

470

460

450

430

412

400

380

345

325

310

295

270

245

231

205

TONS

200

190

187

180

174

167

157

147

138

132

123

113

103

97

88

80

GPM

600

570

560

540

522

500

470

440

415

395

370

340

310

291

265

240

TONS

243

233

230

220

211

200

193

177

167

160

150

135

123

115

103

93

GPM

730

700

690

660

632

600

580

530

500

480

450

405

370

345

310

280

TONS

280

270

267

250

241

233

223

207

193

183

175

157

143

135

122

110

GPM

840

810

800

750

722

700

670

620

580

550

525

470

430

405

365

330

TONS

323

310

303

290

283

273

257

237

225

213

200

182

167

156

140

127

GPM

970

930

910

870

850

820

770

710

675

640

600

545

500

468

420

380

TONS

400

383

383

367

355

340

323

300

282

272

252

230

210

193

177

158

GPM

1200

1150

1150

1100

1065

1020

970

900

845

815

755

690

630

579

530

475
187

TONS

483

467

450

433

422

407

383

358

338

325

305

275

247

234

210

GPM

1450

1400

1350

1300

1265

1220

1150

1075

1015

975

915

825

740

702

630

560

TONS

550

533

517

500

483

467

447

417

393

382

350

327

300

280

250

230

GPM

1650

1600

1550

1500

1450

1400

1340

1250

1180

1145

1050

980

900

840

750

690

TONS

633

617

600

573

550

533

507

467

448

427

400

367

338

320

290

263

GPM

1900

1850

1800

1720

1650

1600

1520

1400

1345

1280

1200

1100

1015

960

870

790

TONS

767

733

733

703

692

667

633

600

567

550

517

483

440

417

383

350

GPM

2300

2200

2200

2110

2075

2000

1900

1800

1700

1650

1550

1450

1320

1251

1150

1050

TONS

933

900

900

867

840

817

767

717

683

650

617

567

517

484

442

400

GPM

2800

2700

2700

2600

2520

2450

2300

2150

2050

1950

1850

1700

1550

1452

1325

1200

TONS

1067

1033

1000

967

958

925

892

833

800

763

733

667

617

584

533

483

GPM

3200

3100

3000

2900

2875

2775

2675

2500

2400

2290

2200

2000

1850

1752

1600

1450

TONS

1267

1233

1200

1150

1125

1073

1033

967

917

883

833

767

700

654

600

533

GPM

3800

3700

3600

3450

3375

3220

3100

2900

2750

2650

2500

2300

2100

1962

1800

1600

TONS

1533

1467

1433

1400

1367

1300

1250

1167

1100

1067

1025

942

883

834

767

700

GPM

4600

4400

4300

4200

4100

3900

3750

3500

3300

3200

3075

2825

2650

2502

2300

2100

PCT Series
DIMENSIONS

PCT-30, 40, 50

PCT-8, 10, 15, 20

PCT-60, 80

PCT-100, 125, 150

PCT

10

15

20

30

40

50

60

80

100

125

150

5'-2"

5'-7"

5'-3"

6'-1"

6'-3"

6'-8"

6'-11"

7'-7"

8'-2"

9'-7"

10'-3"

10'-3"

3'-1"

3'-1"

3'-10"

3'-10"

5'-6"

5'-6"

6'-3"

6'-11"

6'-11"

9'-6"

10'-3"

10'-3"

WATER INLET &

OUTLET

1"

1"

2"

2"

3"

3"

3"

4"

4"

5"

5"

6"

OVERFLOW &
DRAIN

1"

1"

1"

1"

1"

1"

1"

1"

1"

2"

2"

2"

MAKE-UP

"

"

"

"

"

"

"

"

"

"

"

"

AUX MAKE-UP

MOTOR HP

"

"

"

"

1"

2"

2"

2"

2"

3"

3"

3"

DRIVE

PRESSURE
DROP FT

10

10

OPERATING
WEIGHT LBS.

311

342

502

541

944

1008

1381

1857

1926

2895

3029

3198

DRY WEIGHT
LBS.

124

143

165

187

286

330

396

550

594

1100

1188

1276

PCT Series
DIMENSIONS

PCT-175, 200

PCT-250, 300, 350, 400

PCT-500, 600, 700

PCT

175

200

10-10"

11-4"

10-11" 10-11"

400

700

800

1000

17-5"

18-1"

18-7"

19-3"

18-5"

21-8"

21-8"

25-0"

25-0"

500

300

350

12-11"

13-1"

13-9"

14-0"

15-1"

13-0"

14-4"

15-8"

15-8"

250

PCT-800, 1000

600

WATER INLET &

OUTLET

6"

6"

8"

8"

8"

8"

10"

10"

10"

12"

12"

OVERFLOW &
DRAIN

2"

2"

3"

3"

3"

3"

4"

4"

4"

4"

4"

MAKE-UP

1"

1"

1 "

1"

1"

1 "

2"

2"

2"

3"

3"

AUX MAKE-UP

1"

1"

1 "

1 "

1 "

1 "

2"

2"

2"

3"

3"

MOTOR HP

7.5

10

10

15

15

20

20

30

30

DRIVE

PRESSURE
DROP FT

11

12

13

13

14

14

15

18

18

19

20

OPERATING
WEIGHT LBS.

4312

4439

6267

7367

8549

9425

15466

21193

21650

27197

27951

DRY WEIGHT
LBS.

1914

1980

2970

3410

3784

4510

5390

8690

8910

10340

10780

NOTES:

1) ALL MOTORS ARE THREE PHASE. CONSULT FACTORY FOR SINGLE PHASE.
2) FOR FOUNDATION DIMENSIONS AND WEIGHT DISTRIBUTION, CONSULT FACTORY.
3) DRIVE:D=DIRECT, B=BELT(GEAR OPTIONAL), G=GEAR

COOLING TOWER SPECIFICATIONS

A. Cooling towers shall be induced-draft, bottle
type design with 360 degree air inlet, axial fan
and vertical discharge as manufactured by
PROTEC COOLING TOWERS, INC. model
PCTflow rates, capacities,
and design temperatures shall be as indicated
on the drawings.

a minimum life of 40,000 hours. Fan assembly

shall be (2)
driven. Fan motor shall
be TEFC/TEAO, rated as indicated on the
drawings and not more than
H.P.
The motor and fan assembly shall be supported
on a structural steel support. A suitable fan
guard shall be provided.

B. Tower manufacturer must be a member of

Cooling Tower Institute (CTI) and towers shall
be rated based on results from performance
tests to guarantee capacity.

H. Water distribution shall be provided through a

rotating sprinkler head system. The rotating
sprinkler head shall be (3)
,
sprinkler pipe shall be rigid PVC.

C. Structural framework and casing panels shall

be designed for operating loads. Casing shall
be molded of corrosion-resistant fiberglass
reinforced polyester (FRP) material. The casing
panels shall be one-piece type, or multi-segment
type and arranged to allow easy access to the
fill media.

I.

Provide air inlet (4)

360 around the
casing, constructed of (5)
with UV (ultraviolet) inhibitors.

J.

A ladder to allow inspection and accessibility

to the fan motor and upper portion of the tower
cell shall be provided for models PCT-60 and
larger.

D. Water basin shall be molded of corrosionresistant fiberglass reinforced polyester (FRP)

material. Basin shall be one piece type, or if
multi-segment type. Basin shall be provided
with connections for: water inlet, water outlet,
water make-up quick-fill, overflow and drain.
E. The following accessories shall be included:
strainer, water make-up valve with float, and
adjustable water level device.
F.

Fill shall be polyvinyl chloride (PVC) arranged

in a circular configuration. Fill material shall
be of flame retardant quality as per ASTM
standard E-84 with flame spread rating of 25
or less and shall be resistant to rot, decay or
biological attack.

G. Fan shall be multi-blade adjustable pitch axial

type, (1)
/construction. Fan and shaft
shall be supported by heavy duty, relubricatable
ball bearings with special moisture proof seals,
grease packed, self-aligning with integral
slinger rings. All bearings shall be designed for

K. All fiberglass reinforced polyester (FRP) materials

shall contain UV (ultraviolet) inhibitors and an
exterior gel coat.
L.

All fasteners shall be stainless steel and the

rest of the metal components shall be
(6)
.

NOTES:
(1) Models PCT-8 through PCT-50 Plastic
Models PCT-60 through PCT- 700 Aluminum Alloy
Models PCT-800 through PCT-1000 Fiberglass
(2) Models PCT-8 through PCT-200 Direct
Models PCT-250 through PCT-500 Belts (Gear Optional)
Models PCT-600 through PCT-1000 Gear
(3) Models PCT-8 through PCT-80 Plastic
Models PCT-100 through PCT-1000 Bronze
(4) Louvers or Screens
(5) Louvers are constructive of fiberglass (FRP)
Screens are constructed of PVC
(6) Galvanized or Stainless Steel

Cooling Towers, Inc.

6935 NW 50th Street Miami, Florida 33166
Tel: 305-594-3684 Fax: 305-477-2514
www.protectowers.com
e-mail: info@protectowers.com
F120506