Nelson Irrigation Corp. 848 Airport Rd. Walla Walla, WA 99362-2271 USA Tel: 509.525.7660 Fax: 509.525.7907 E-mail: [email protected] Web site: www.nelsonirrigation.com
MINI REGULATOR &
MINI REGULATOR DRAIN CHECK
MRDC APPLICATIONS:
1
Portable irrigation systems
, to
eliminate crop wash out from
partially pressurized sprinklers
during system start up and shut
down.
2
Overhead cooling of apples
and other crops
, to prevent
drainage of the system in between
frequent on and off cycles of the
irrigation system.
3
Green house irrigation sys-
tems
, where sprinkler dripping or
drainage after shut down cannot
be tolerated.
4
Systems where pressure gains
or losses are high due to
uneven topography or high
friction loss in pipes
, to ensure
high uniformity and even flow of
all sprinklers in a system.
1
2
3
4
MRDC-2
MR
MRDC
MINI REGULATOR (MR)
For accurate Pressure Regulation.
Identified with a Gray Inlet.
MINI REGULATOR
DRAIN CHECK (MRDC)
The patented Mini Regulator
Drain Check (MRDC) is a
combination pressure regulator
and check valve that provides a
check feature to prevent system
drain down through the sprinkler.
Identified with a Blue Inlet.
OUTLET
Direct Connection
to Rotator Sprinklers
INLET
1/2 FNPT (1.25 cm)
or Female Acme Inlet
MR
&
MRDC
PRESSURE OPTIONS:
20 PSI
(1.4 BAR)
; 30 PSI
(2.0 BAR)
35 PSI
(2.4 BAR)
; 40 PSI
(2.8 BAR)
45 PSI
(3.1 BAR)
; 50 PSI
(3.4 BAR)
FLOW RANGE:
0.5 - 5 GPM
(1.8-18.9 LPM)
R2000 ROTATOR
®
WITH MINI REGULATOR
