Murphy DVU Series Installation And Operation Manual

Installation and Operation Manual for
DVU Series Dump Valves
Models: DVU150, DVU175, DVU2105, DVU2115 and DVU2120
Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended
before mounting. It is your responsibility to have a qualified person install this unit and make sure it conforms to local codes.
WARNING
60
BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT
Disconnect all electrical power to the machine.
Make sure the machine cannot operate during installation.
50
Follow all safety warnings of the machine manufacturer.
45
Read and follow all installation instructions.
40
Description
The DVU Series models are pneumatically controlled dump valves.
30
The valves open and close automatically by pneumatic control from a
Murphy L1200NDVOR or similar level controller and dump valve opera-
tor. Diaphragm actuated, the DVU series dump valves operate at 30–70 psi
20
(207–483 kPa) [2.07–4.83 bar] and up to 2000 psi (13.8 MPa) [138 bar]
0
500
vessel pressure (depending on the model).
Vessel Pressure (PSIG)
A key benefit of this design is a hex union that provides the ability
to replace the seat without removing the valve from piping.
Fig. 1
Control Pressure vs. Working Pressure
70
60
50
40
DVU2105
30
20
10
0
500
Model
Inlet
DVU2120
2 NPT
DVU2115
2 NPT
DVU2105 2 NPT
DVU175
1 NPT
DVU150
1 NPT
GENERAL INFORMATION
Maximum Actuation
Pressure
1000 1500 1800
Minimum Actuation Pressure
DVU2120
DVU2115
DVU150/175
1000 1500
Vessel Pressure (PSIG)
Outlet Trim Size
1 NPT 0.436 in. (11 mm)
1 NPT 0.576 in. (15 mm)
1 NPT 0.859 in. (22 mm)
3/4 NPT 0.359 in. (9 mm)
1/2 NPT 0.359 in. (9 mm)
Installation 00-02-0483 page 1 of 4
Fig. 2
Dimensions (all models)
Pressure
Inlet Port
1/8 in.-27 NPT
Vent
Weep Hole
Union
F
Drain
Connection
Plug Seal
Model A
DVU2120 7.50 (191) 8.0 (203)
DVU2115 7.50 (191) 8.0 (203)
DVU2105 7.50 (191) 8.0 (203)
DVU175 7.50 (191) 6.75 (171)
DVU150 7.50 (191) 6.75 (171)
NOTE: Dimensions are in inches and (millimeters)
Specifications
Operating Temperature: -30 to 250°F (-34.4 to +121°C)
Valve Operating Pressure: Refer to chart, Fig 1.
Maximum Process Pressure:
DVU2120: 2000 psi (13.8 MPa) [138 bar].
DVU2115: 1500 psi (10.3 MPa) [103 bar].
2000
DVU2105: 500 psi (3.44 MPa) [34 bar].
DVU150 and DVU175: 1800 psi (12.4 MPa) [124 bar].
Flow Characteristics: See chart, page 4 (DVU150/175 models only).
Body Material: Electroless Nickel Plated 12L14 Carbon Steel
Internal Wetted Parts: Plug Seal: 90 Durometer Urethane.
Other: 303 stainless steel; Electroless Nickel Plated 12L14 Carbon Steel
Shipping Weights: DVU150 and DVU175: 9 lbs. (4 kg.).
Shipping Weights: DVU2105, DVU2115 and DVU2120: 14 lbs. (6.4 kg.).
Shipping Dimensions: 7-1/2 x 7-1/2 x 10-3/4 in. (191 x 191 x 274 mm.).
A
Manual Valve
Operator
Valve Open/Closed
Indicator Button
C
D
E
G
(dimension shown
for reference only)
B C D E
2.75 (70) 1.0 (25) 2-11.5 NPT 1-11.5 NPT
2.75 (70) 1.0 (25) 2-11.5 NPT 1-11.5 NPT
2.75 (70) 1.0 (25) 2-11.5 NPT 1-11.5 NPT
2.06 (52) 1.0 (25) 1-11.5 NPT 3/4"-14 NPT
2.06 (52) 1.0 (25) 1-11.5 NPT 1/2"-14 NPT
00-02-0483
Revised 10-08
Section 15
B
F G
1.03
1.03
1.03
1.03
1.03