Rolling Diaphragm Eliminates Crystallization Problems.
Fail-Dry Patented Safety Design.
Sensitive Smooth Operation.
All Plastic Adjusting Screw.
Protect systems and equipment from dangerous overpressures.
For use as back pressure valve, straight relief, by-pass relief or back pressure regulator.
Offer wide range of pressure settings from 5-120 PSI with sensitive operation.
5 to 100 PSI (0.4 to 6.9 bar) Setting Range - 120 PSI (8.3 bar) on 1/2 in. size.
Flow Reference Chart:
SERIES RVDM Flow REFERENCE CHART
Pipe Size
Set Pressure Range
Overpressure to Reach Indicated Flow Rate
1/2
2 GPM
4 GPM
5-35 PSI
9 PSI
13 PSI
36-70
16
18
71-120
16
18
3/4
5 GPM
8 GPM
5-25 PSI
10 PSI
13 PSI
25-40
13
16
41-100
15
18
1
9 GPM
15 GPM
5-35 PSI
12 PSI
18 PSI
36-85
12
19
85-100
14
21
NOTE: The Flow Rate in the Right hand column is the Maximum Recommended
Dimensions:
1/2
3/4
1
Inches
mm
Inches
mm
Inches
mm
A
2.25
57.1
4.0
101.6
4.0
101.6
B
4.12
104.1
4.0
101.6
4.4
101.6
C
2.88
73.7
3.3
83.8
3.3
83.3
D
0.94
24.0
1.3
33.3
1.3
33.3
E
1.50
38.1
1.5
38.1
1.5
38.1
F
1.88
48.0
1.9
48.0
1.9
28.0
STANDARD SERIES RVDM MODEL NUMBERS
NPT or BSP
PVC*
CPVC*
EPDM
VITON
EPDM
VITON
1/2
RVDM050EP-PV
RVDM050V-PV
RVDM060EP-CP
RVDM050V-CP
3/4
RVDM075EP-PV
RVDM075V-PV
RVDM075E-CP
RVDM075V-CP
1
RVDM100EP-PV
RVDM100V-PV
RVDM100EP-CP
RVDM100V-CP
Plastic pressure in-line relief valves are multi-functional, normally-closed valves for system pressure relief, pump protection, enhancing pump performance, by-pass relief, and balancing pressure in a process system.
For anti-siphon applications, Plast-O-Matic series RVDT features a unique PTFE diaphragm.
Available in PVC, CPVC, Kynar PVDF, Natural Polypropylene, PTFE, and glass-filled Polypropylene; sizes 1/4" to 3" NPT.
Ideal for corrosive and other chemical process, as well as deionized water, reverse osmosis water...any ultra-pure liquid.
Plast-O-Matic relief valves deliver higher flow at lower overpressures than other typical relief valves. Operation is smooth, sensitive and extremely accurate.
