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UPW PRESSURE VESSELS FOR FILTRATION, WATER SOFTENING AND DEMINERALIZATION


PACT pressure vessels are pre-engineered or custom designed for manual or automatic operation. PACT 's in-house manufacturing facilities provide sand/grit blasting, priming, painting and rubber lining. The pressure vessels are manufactured by technicians specialized in all disciplines of steel and alloy steel handling, forming, metal surfacepreparation and welding. All apparatus are available at PACT 's manufacturing facilities for nondestructive testing, x-ray inspection, high voltage electric spark lining integrity testing, etc. Standard tanks are designed for working pressure of 7 kg/cm 2 and fabricated to ASME section VIII specifications.

SAND, MULTI-MEDIA AND CARBON FILTERS

PACT pressure filters are used for a variety of applications and most commonly for filtration of particulates at a slow rate (sand filters), deep filtration at a higher rate (multi-media filters) and adsorption of chlorine/taste/odor and removal of organics (carbon filters).

Sand Filters (SF), Multi-Media Filters (MMF) and Activated Carbon Filters (ACF)

Model No.

Service
Normal/Peak
(m3 /h)

Media Volume
(liters)

Backwash
(m3 /h)

Pipe Size
(DIN)

Tank Size
Dia. x Ht. on St.(mm)

Approx. Ship. Wt. (kg)

PSF24

2.0 / 3.3

140

10.0

50

600 x 1600

500

PSF30

3.3 / 5.5

210

16.5

50

800 x 1600

740

PSF36

4.8 / 8.0

300

24.0

50

900 x 1600

1150

PSF42

6.5 / 11.0

411

32.5

80

1000 x 1600

1550

PSF48

8.5 / 14.3

540

42.5

80

1200 x 1600

2100

PSF60

13.3 / 22.2

840

66.5

100

1600 x 1600

3100

PSF72

19.2 / 32.1

1200

96.0

120

1800 x 1800

4950

MMF24

3.3 / 6.6

1 m bed

10.0

50

600 x 1800

575

MMF30

5.5 / 11.0

1m. bed

16.5

50

800 x 1800

850

MMF36

8.0 / 16.0

1m. bed

24.0

50

900 x 1800

1320

MMF42

11.0 / 22.0

1m. bed

32.5

80

1000 x 1800

1780

MMF48

14.3 / 28.6

1m. bed

42.5

80

1200 x 1800

2420

MMF60

22.2 / 44.4

1m. bed

66.5

100

1600 x 1800

3600

MMF72

32.1 / 64.2

1m.bed

96.0

120

1800 x 1800

5700

ACF24

3.3 / 5.0

210

6.6

40

600 x 2100

630

ACF30

5.5 / 8.3

315

11.0

50

800 x 2100

935

ACF36

8.0 / 12.0

450

16.0

50

900 x 2100

1450

ACF42

11.0 / 16.5

616

22.0

80

1000 x 2100

1960

ACF48

14.3 / 21.5

810

28.6

80

1200 x 2100

2660

ACF60

22.2 / 33.3

1260

44.4

80

1600 x 2100

3950

ACF72

32.1 / 48.0

1800

64.2

100

1800 x 2100

6270


*available in manual and automatic valves. Tank materials of mild steel epoxy-coated or 304/316 stainless steel. Diameters of 1200 mm and smaller are also available in fiberglass construction.

ION-EXCHANGE WATER SOFTENERS

Hard water contains dissolved minerals in the form of Ca ++ and Mg ++ . Removal of these minerals is accomplished by softening the water through an ion-exchange process. The medium used is a strong acid (cation) resin in the sodium form with a very high bead count. The PACT ion-exchange resin combines high operating capacity with excellent chemical/physical stability. The regeneration cycle can be initiated manually or automatically by a day time clock or a water meter.

PACT Industrial Ion-Exchange Water Softeners

Model No.

Pipe Size
(DIN)

Resin Tank Dia.
(mm)

Resin
Vol.
(liters)

Brine
Tank
Dia.
(mm)

Brine Tank
Capacity (kg)

Resin
Cap.
Min.
(kgr)

Resin
Cap.
Max.
(kgr)

Salt/
Regen
Min.
(kg)

Salt/
Regen
Max.
(kg)

Flow
Rate
(m3 /h)

Back-Wash
Rate
(m3 /h)

24

50

600

300

1000

670

200

300

27

67

15-20

4.5

30

50

800

385

1000

780

300

450

40

100

17-23

6.5

36

50

900

558

1000

980

400

600

54

134

21-28

9.0

42

80

1000

760

1000

1350

600

900

80

200

34-45

15.4

48

80

1200

1000

1400

1600

800

1200

107

267

40-55

18.0

54

80

1400

1300

1400

1800

1000

1500

134

335

47-60

21.0

60

80

1600

1550

1400

2250

1300

1950

174

435

50-65

25.0

66

80

1700

2000

1800

3100

1800

2700

241

600

70-100

35.0

72

100

1800

2650

1800

3500

2000

3000

268

670

95-130

45.0


*All resin tanks shell height is 1800 mm. The softeners are available in manual and automatic valves. Tank materials of mild steel epoxy-coated or 304/316 stainless steel. Diameters of 1200 mm and smaller are also available in fiberglass construction. Twin automatically alternating ion-exchangers are also available.


TWO-BED DEIONIZERS


Employing cation and anion resins in separate vessels, these units are capable of producing water of low mineral content. The mineral content present in the effluent of the anion consists primarily of trace sodium ion. In conjunction with hydroxyl ions the effluent will have a pH range of 8.5-9.5. There are two types of anion resins each with a different function. One type is weak-base and the other strong-base. Strong base resins react with all minerals removing weak acids such as silica and CO2 . Caustic soda is used to regenerate, often at elevated temperatures when low silica leakage is demanded. Weak- base resins have higher operating capacity than strong-base resins and function only at low pH. They cannot remove silica and CO2 . These resins are generated with caustic soda, soda ash or ammonia. The choice between the two depends upon the purity requirements. Weak-base two-bed units typically produce water with 3-5 ppm residual minerals, excluding silica and CO2 . On the other hand strong-base two-bed units treat the water to a level of ionized solids below 3 ppm including silica and CO2 .

PACT Industrial Two-Bed Deionizers

Model No.

Capacity (Kgr)

Peak Flow
(m3 /h)

Tank Dia.
(mm)

Tank Shell
(mm)

Pipe Size
(DIN)

93%
H2SO4/
Regen
(liters)

30%
HCl/
Regen
(liters)

50%
NaOH/
Regen
(liters)

Cation
Resin
(liters)

Anion
Resin
(liters)

PS-24

140

6.5

600

1830

40

16

76

25

305

280

PS-30

250

12.0

800

1830

40

28

135

47

530

510

PS-42

400

18.0

1000

1830

50

46

218

75

855

815

PS-48

580

27.0

1200

1830

65

67

316

108

1230

1200

PS-54

800

36.0

1400

1830

80

93

430

150

1680

1600

PS-60

1000

48.0

1600

1830

80

122

566

195

2300

2100

PS-72

1350

60.0

1800

1830

100

156

720

250

2850

2650

PW-24

180

6.0

600

1830

40

16

76

14

305

280

PW-30

330

10.5

800

1830

40

28

135

26

530

510

PW-42

520

17

1000

1830

50

46

218

44

855

815

PW-48

750

24

1200

1830

65

67

316

63

1230

1200

PW-54

1000

32

1400

1830

80

93

430

86

1680

1600

PW-60

1350

42

1600

1830

80

122

566

114

2300

2100

PW-72

1700

54

1800

1830

100

156

720

146

2850

2650

* PS = Strong-Base, PW = Weak-Base Tank materials of carbon steel, designed and constructed to ASME section VIII specs. Tanks are internally lined with 5 mm rubber. Design working pressure 7 kg/cm 2 ..


MIXED-BED DEIONIZERS

Mixed-Bed deionizers have a proven record as primary equipment to provide extremely high purity water for process use such as semiconductor, electronics, power and similar critical applications. Mixed-bed units employ cation and anion resins in a single vessel. These units produce water of neutral pH and ultra low mineral content of total ionizable solids in the ppb range. They may be used as stand alone units or as polishers downstream of a two-bed deionizer or a reverse osmosis system.

PACT Industrial Mixed-Bed Deionizers

Model No.

Capacity (Kgr)

Peak Flow
(m3 /h)

Tank Dia.
(mm)

Tank Shell
(mm)

Pipe Size
(DIN)

93%
H2SO4/
Regen
(liters)

30%
HCl/
Regen
(liters)

50%
NaOH/
Regen
(liters)

Cation
Resin
(liters)

Anion
Resin
(liters)

PM-24

165

6.5

600

2440

40

9.5

30

17

127

190

PM-30

300

12.0

800

2440

40

17.0

57

33

226

355

PM-42

470

18.2

1000

2440

50

30.0

95

50

380

560

PM-48

680

26.3

1200

2440

65

40.0

135

75

530

810

PM-54

920

37.0

1400

2440

80

57.0

185

100

730

1100

PM-60

1220

48.0

1600

2440

80

76.0

245

130

955

1450

PM-72

1550

62.0

1800

2440

100

95.0

310

170

1250

1850


Tank materials of carbon steel, designed and constructed to ASME section VIII specs. Tanks are internally lined with 5 mm rubber. Design working pressure 7 kg/cm2 .