Danfoss AWR, MWR Installation guide
Installation and Instruction
PLRCA.PI.DC0.A1.02 / 520H3011
© Danfoss Saginomiya
Approved by Drawing NumberCatalog NumberNamedatedrawn by
Sep.
1981
PRESSURE ACTUATED WATER
REGULATING VALVE
AWR
(Series for seawater
MWR
application)
A-WR-30011-B
A. Failure to read and follow all instruction carefully before installing or
operating this water regulating valve could cause personal injury and/or
property damage. Save these instructions for future use.
B. NOTE FOR SAFETY
Warning
Be sure to read and follow all items before installing or operating this valve.
Do not turn any other screws than Adjusting Spindle ① as it may cause
water leakage.
Water flow direction should follow arrow shown on the body.
Reverse flow direction against the arrow may cause uncontrolled.
GasusagepressureonBellowscapsideshouldbelessthanMPindicatedonlabel.
Excessive pressure more than MP may be fear of pressure burst.
Flange type can not be used for seawater. Body will be corrode because of
iron castings made. Use flange type of “MWR”series for seawater application
because the valve body is made of bronze castings.
If Bellows cap is deformed by some mis-handing,
do not use this valve absolutely as it may be fear of Gas leakage.
Bellows cap should be free from pulsation.
(Be sure to connect attached pressure damping capillary tube fig.2 for the models
of connection size of 2”and 2-1/2”. Since union connection is not fastened
enough on delivery, it should be fastened tightly before using.)
Heavy pulsation may shorten the lifetime of bellows.
Use the valve under the condition of “Installation and Instruction”.
Do not keep applying pressure at around valve opening(within differentialof
0.029 MPa from valve opening pressure) to the valve.
Otherwise, the valve disk will repeat to open-close heavily in short time and
it may cause abnormal noise and lifetime shortening.
Remove dust or foreign matter inside of pipe before installation. It may cause
valve leakage and wrong working.
Do not cause Water Hammer to inside of connected pipe as it may cause water leakage
from the valve.
In case of troubles, close all other valves around the valve and contact us
without any decomposition. It will be dangerous because it is charged High
Pressure Gas inside.
Bellows Cap
9
Bellows
8
Rubber Diaphragm
7
Valve Disk
6
Body
5
Rubber Diaphragm
4
Spring
3
Cover
2
Adjusting Spindle
1
No. PART NAME
1
2
3
4
5
6
7
8
9
1/4 Flare Nut
Inlet
Capillary tube(1m)
1/4 Flare Nut
Fig.2 Capillary tube assemblyFig.1 Sectional View AWR-3212GLW
Union
External
C. SPECIFICATIONS
CATALOG NUMBER
AWR-
AWRMWR-
NUMBERTYPE
1203BLW
1204BLW
1203GLW
1504GLW
2006GLW
2510GLW
3212GLW
4014FLW
5020FLWR
5020FLWH
6524FLWR
6524FLWH
CONNECTION
3/8
1/2
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
STYLESIZE
Flare
Rc
(FPT)
Flange
PRESSURE RANGE (OPENING POINT)
1.78 MPa0.78 MPa
0.59 MPa
{6 /}
0.59 MPa
0.59 MPa
1.08 MPa
0.59 MPa
1.08 MPa
{6/}
{6/}
{11 /}
{6/}
{11 /}
1.77 MPa
{18 /}
1.77 MPa
1.18 MPa
1.77 MPa
1.18 MPa
1.77 MPa
MAX.MIN.
{18 /}{8/}
{18 /}
{12 /}
{18 /}
{12 /}
{18 /}
AIRTIGHT(WATERTIGHT)
BODY
0.98 MPa
{10 /}
TEST PRESSURE
2.55 MPa
{24 /}
BELLOWS CAP
{26 /}
2.35 MPa
D. OPERATION
In Fig.1, it contracts the bellows ⑧ and the valve disk ⑥ is moved upwards resisting to spring
③ and cooling water in the body ⑤ flows in direction of arrow on the body when pressure in the
bellows cap ⑨ increases.
E. ADJUSTMENT
Looking adjusting spindle ① of the left drawing from over view, turn the adjusting spindle counter
clockwise to strengthen the compression spring ③. This raises valve opening point by gas pressre
to start cooling water flow.
F. MOUNTING
Mounting position (angle) is free from a restriction. In case apply this valve to condenser cooling
water of a refrigerating system, this valve can be achieved its function even it isinstalled either
inlet side or outlet side of a condenser.
Be sure to firmly tighten the nut. The proper tightening torque is as follows.
Torque
Style
AWR-
N･m
(kgf･㎝)
38
{380}
Flare
1204BLW1203BLW
{550}
55
30
{300}
Taper Pipe Threads
2006GLW1504GLW1203GLW
35
{350}
{500}
50
60
{600}
3212GLW2510GLW
80
{800}
G. OPERATION CHECK
Install the Product correctly and then check its operation to confirm collect function of the whole
system.
H. LIMIT ON APPLICATION
The product is not designed and manufactured for such equipment or system that is intended to be
used under such circumstances as to relate to human life. For application requieing specially high
reliability, please contact Company first.
I. SCOPE OF WARRANTY
Unless otherwise agreed by the parties, warranty period of the Product shall be one year after delivery.
In case of failure attributable to the Company within such period, the Product shall be repaired or
replaced, provided that any one of followings are out of the warranty :
1.Unproper handling or application by user
2.Modification or repair by other than the Company
3.Any failure to be caused by acts of God, fire, storm or the like, war,riot or the like and other
causes beyond the control of the parties concerned.
Warranty described in this paragraph means the warranty for the Product itself and does not include
warranty for any consequential damage arising out of or occasioned by a defect or failure of the Product.
B 7.19.'01 REVISION Y.ITO
A 10.25.'99 REVISION Y.ITO
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