NOTE: The K2Pro is factory preset with a 90° arc setting,
and includes a pre-installed #2.5 nozzle.
CHANGING A NOZZLE
1. Loosen The Nozzle Retention Screw
Use your K-key (A) or a medium flat blade screw driver to loosen the Nozzle Retention
Screw (B) by turning counter-clockwise until it is no longer in front of the nozzle.
2. Accessing The Nozzle
The K2 Pro has a Flow Control (D) that when turned all the way counterclockwise to
"Off" will allow you to change nozzles with the water on. The riser will be popped up
with no water coming out. Or, to access the nozzle with water off, insert the K-key (A)
in the Pull Up Slot (F) on the top of the nozzle turret and turn the key 1/4 turn to insure
that the key does not slip out of the Pull Up Slot (F) when you pull it up. Firmly pull up
the entire spring-loaded Riser (L) to access the Nozzle Socket (H). Hold the riser
assembly up with one hand.
3. Removing The Nozzle
Insert the K-key (A) into the slot directly beneath the Nozzle Prongs (G) and push the
key to one side while pulling the nozzle out at the same time.
4. Installing A Nozzle
Press the desired nozzle into the Nozzle Socket (H) at a slight downward angle until
fully seated with the Nozzle Prongs (G) facing up up. The nozzle can be rotated with
the K-key (A) by inserting it into the pull out slot and using it to turn the nozzle into
place. Tighten the Nozzle Retention Screw (B) until the screw is flush with the top of
the head. NOTE: The Nozzle Retention Screw (B) when turned further clockwise while
the head is in operation will break up the straight stream and "fan it out" to provide
fallout of droplets for close in coverage around the head.
NOZZLE TURRET TOP
NOZZLE TURRET TOP
C
A
B
KEY
A
NOZZLE
KEY
B
RETENTION
NOZZLE
SCREW
RETENTION
SCREW
D
DISTANCE
D
AND FLOW
DISTANCE
CONTROL
AND FLOW
CONTROL
E
ARC SET
E
ADJUSTMENT
ARC SET
ADJUSTMENT
F
PULL UP SLOT
F
STANDARD NOZZLE PERFORMANCE DATA
Nozzle
Pressure Radius Flow
Precip in/hr
PSI
Ft.
GPM
n
#1.0
30
30
1.2
0.21 0.25
40
31
1.3
0.23 0.27
50
31
1.5
0.27 0.31
60
32
1.8
0.32 0.37
#1.5
30
36
1.5
0.22 0.26
40
37
1.8
0.25 0.29
50
37
2.0
0.28 0.32
60
38
2.2
0.29 0.34
#2.0
30
35
1.8
0.28 0.33
40
35
2.2
0.35 0.40
50
36
2.6
0.39 0.45
60
38
2.9
0.39 0.45
#2.5
30
37
2.5
0.35 0.41
40
38
3.0
0.40 0.46
Pre-
50
40
3.4
0.41 0.47
installed
60
40
3.8
0.46 0.53
3.0
30
36
3.0
0.45 0.51
40
37
3.4
0.48 0.55
50
38
4.0
0.53 0.62
60
41
4.4
0.50 0.58
ARC SELECTION:
ARC SELECTION:
40° to 360°
40° to 360°
NOZZLE ARROW
C
NOZZLE ARROW
PULL UP SLOT
Nozzle
Pressure Radius Flow
s
PSI
Ft.
#4.0
30
37
40
39
50
39
60
40
#5.0
30
37
40
38
50
41
60
43
#6.0
30
40
40
41
50
42
60
44
#8.0
30
38
40
44
50
45
60
46
*All precipitation rates calculated for 180° operation.
For the precipitation rate for a 360° sprinkler, divide by 2.
SETTING ARC ADJUSTMENT WITH WATER OFF OR ON
1. Finding The Left Start Position
Using the palm of your hand, twist the Nozzle Turret (K) all the way to the right,
then all the way to the left until it stops. Notice the position of the Nozzle Arrow (C).
This is the Fixed Left Start Position (M). The sprinkler will begin spraying from this
position and rotate clockwise until it reaches its Right Adjustable Stop (N).
2. Changing The Left Start Position
Insert tip of the K-key (A) into the Pull Up Slot (F) and turn ¼ turn to prevent the
key from slipping out. Then, firmly pull up the entire spring loaded riser assembly,
trying not to accidentally turn the Nozzle Turret (K). To change the Fixed Left Start
Position (M), turn the Lower Riser (L) any direction necessary to aim the Nozzle
Arrow (C) to the desired left start position. There is plastic ratchet at the base of
the riser and a "clicking" sound will be made while turning. The top Nozzle Turret (K)
section of the riser is not what is turned to adjust the left stop. However, it manually
turned to make sure the Nozzle Arrow (C) is all the way to the left fixed side.
3. Changing The Right Stop Position
Insert the K-key (A) or medium flat blade screwdriver into the Arc Set Adjustment (E)
slot. Turn clockwise to make the arc larger and counterclockwise to make the arc
smaller. The arrow at the end of the Arc Adjustment slot will point at the degrees of a
circle the head is set to rotate – indicated by the 360, 90 and 180 printed on the top of
the head. When set to full circle/360° rotation, the head will turn clockwise continuously.
4. Using The Distance And Flow Control
Insert K-key (A) or a medium flat screwdriver into the Distance and Flow Control (D)
with the water on. The distance/flow will be reduced as the Flow Control is turned
counterclockwise. When turned all the way counterclockwise, the head will be
turned "OFF". The riser will still pop up when the system is in operation with no
water coming out of the nozzle. The Nozzle Retention Screw (B) above the nozzle
can also be turned to break up the stream.
G
NOZZLE
PRONGS
H
NOZZLE
SOCKET
I
THE ARC'S
ADJUSTABLE
HOUSING
THE ARC'S
RANGE
CAN
ADJUSTABLE
RANGE
LOW ANGLE NOZZLES
Precip in/hr
Nozzle
Pressure Radius Flow
GPM
PSI
n
s
4.0
0.56 0.65
#1.0
30
4.5
0.57 0.66
40
5.2
0.66 0.76
50
5.6
0.67 0.78
60
4.8
0.68 0.78
#1.5
30
5.6
0.75 0.86
40
6.5
0.74 0.86
50
7.2
0.75 0.87
60
6.0
0.72 0.83
#2.0
30
6.8
0.78 0.90
40
7.5
0.82 0.95
50
8.4
0.84 0.96
60
7.9
1.05 1.22
#3.0
30
9.2
0.92 1.06
40
10.4
0.99 1.14
50
11.1
1.01 1.17
60
Setting Instructions
G
J
NOZZLE
KEY IN
J
PRONGS
KEYHOLE
KEY IN
KEYHOLE
K
NOZZLE
K
TURRET
NOZZLE
H
TURRET
L
NOZZLE
LOWER
L
SOCKET
RISER
LOWER
RISER
I
HOUSING
CAN
Precip in/hr
Ft.
GPM
n
s
26
1.1
0.31 0.36
30
1.3
0.28 0.32
30
1.4
0.30 0.35
30
1.6
0.34 0.40
27
1.4
0.37 0.43
28
1.7
0.42 0.48
31
1.9
0.38 0.44
30
2.1
0.45 0.52
30
2.1
0.45 0.52
31
2.4
0.48 0.56
33
2.8
0.50 0.57
31
3.1
0.62 0.72
32
3.0
0.56 0.65
34
3.5
0.58 0.67
35
3.9
0.61 0.71
35
4.3
0.68 0.78
N
RIGHT
ADJUSTABLE
N
RIGHT
STOP
ADJUSTABLE
STOP
M
LEFT
M
FIXED
LEFT
START
FIXED
START
K-RAIN MANUFACTURING CORP.
1640 Australian Avenue
Riviera Beach, FL 33404 USA
PH: 1-561-844-1002 / 1-800-735-7246
FAX: 1-561-842-9493
www.krain.com
© K-RAIN Manufacturing Corp.
Part Number: 11005115
Rev. 13
