Knight Equipment KAP-38SK Installation Manual

KNIGHT

Uniflow 3/8"
Bolted Plastic Pumps

Operating Instructions

Model Part Description

KAP-38SK 1600913 PVDF/Santoprene
KAP-38SP 1600978 Poly/Santoprene
KAP-38TP 1600919 Poly/TF
KAP-38TK ? PVDF/TF

Rev: A (05/07)

Read these instructions completely before installation and
start-up. It is the responsibility of the purchaser to retain
this manual for reference. Failure to comply with the rec­ommendations stated in this manual could result in death,
serious bodily injury and/or property damage including
damage to the pump and/or voiding the factory warranty.

Correct pump selection is crucial to the pump operation.

Please assure pressure, temperature and chemical
compatibility before installation. Please consult Knight
Equipment, Engineering Specifications, Chemical Compatibility
Chart, or your distributor if in doubt about any application.

Operating Limitations for Various Elastomers

Neoprene 0°F (-18°C) to 200°F (93°C)
Buna-N 10°F (-12°C) to 180°F (82°C)
Nordel -60°F (-51°C) to 280°F (138°C)
Viton -40°F (-40°C) to 350°F (176°C)
40°F (4°C) to 220°F (105°C)
Polyurethane 10°F (-12°C) to 170°F (77°C)
XL TPE (Santoprene) -20°F (-29°C) to 300°F (149°C)
Geolast -40°F (-40°C) to 257°F (125°C)
FDA Hytrel -20°F (-29°C) to 220°F (104°C)

Operating Limitations for Plastic Pumps

Kynar (PVDF) 10°F (-12°C) to 225°F (107°C)
Polypropylene 32°F (0°C) to 175°F (79°C)

Maximum temperature limits are based upon mechanical
stress only. Certain chemicals and environment conditions
significantly reduce maximum safe temperature limits.

Before pump operation, inspect all gasketed fasteners for
looseness caused by gasket creep. Re-torque all loose
fasteners to prevent leakage. Follow recommended torques
stated in this manual. Failure of the sealing components
creates the possibility of jetting or forceful discharge of
pumped material at a potentially harmful velocity.

Be certain that approved eye protection and protective
clothing are always worn during installation, service, mainte-

nance or when in the vicinity of the pump. Failure to follow
these recommendations may result in serious injury or death.

Never allow the piping system to be supported by the pump
manifolds or valve housing. The manifolds and valve housing
are not designed to support any structural weight and failure
of the pump may result.

Take action to prevent static sparking. Fire or explosion
can result, especially when handling flammable liquids. The
pump, piping, valves, containers, or other miscellaneous
equipment must be grounded.

Noise levels can exceed 85 dBA. Take precautions to prevent
personal injury due to excessive pump noise.

Do not exceed pump maximum operating pressure (found
on label and/or operating manual.)

Before doing any maintenance or repair on this pump,
be certain all pressure is completely vented for the pump,
suction, discharge, piping, and all other openings.

In the event of a diaphragm rupture, pumped material
may enter the air end of the pump and be discharged into
the atmosphere. If pumping a product that is hazardous
or toxic, the air exhaust must be piped to an appropriate
area for safe disposition.

SAFETY WARNINGS

Page 2

Rev: A (05/07)

PTFE

SPECIFICATIONS AND PERFORMANCE

Knight Uniflow

3/8" Bolted Plastic Pump

Flow Rate

Adjustable to. . . . . . . . 0-6.8 gpm (26 lpm)

Port Size

Suction. . . . . . . . . 3/8" Female NPT (BSP)

Discharge . . . . . . . 3/8" Female NPT (BSP)

Air Inlet . . . . . . . . . . . . 0.25" Female NPT

Air Exhaust . . . . . . . . . 0.25" Female NPT

Suction Lift . . . . . . . . . . . 11' (3.4 m) Dry

Max. Particle Size (Dia.) 0.10" (2.25 mm)

dB(A) Reading . . . . . . . . . . . . . . 78 dB(A)

Shipping Weight

Polypropylene . . . . . . . . . . . . 3 lbs (1.4 kg)

Kynar. . . . . . . . . . . . . . . . . . . 3 lbs (1.4 kg)

Caution: do not exceed 100 psig
(6.8 bar) liquid or air supply pressure.

2.79
[71]

0.94
[24]

Opposite Side:
1/4" Female NPT Air Exhaust

Removable Foot Pad

5/16" Mounting Hole

3/8" Female NPT
Fluid Discharge Connection

3/8" Female NPT
Fluid Suction
Connection

1/4" Female NPT
Air Inlet Connection

5.32

[135]

0.20
[5]

15.71
[399]

2.07
[53]

4.09

[104]

POLY

5.13

[130]

KYNAR

5.08

[129]

POLY

5.72

[145]

KYNAR

5.67

[144]

2.07
[53]

Uniflow 3/8" Bolted Plastic Pump

Meters Feet

Discharge Head in PSI

153

0

100

90

80

70

60

50

40

30

20

10

0

240
220
200
180
160
140
120
100

80
60
40
20

0

75
70
65
60
55
50
45
40
35
30
25
20
15
10

5
0

642 7890

5 101520253035

Capacity in Liters Per Minute

Capacity in U.S. Gallons Per Minute

Displacement Per Stroke, 0.0045 Gal. (0.017 L)

1

3

5

AIR CONSUMPTION IN SCFM
AIR PRESSURE IN PSI

SCFM M3/HR

1 1.7
3 5.1
5 8.5

Page 3

Rev: A (05/07)

.. ...........

PTFE.

(3.4 m) Dry