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Mains Water Pressure. . . . . . 200'. 45 psig. 132 psig. . . . . Domestic Water System. . . . Sillcock. Meter. WaterHeater. AutoWasher. Lav.. Stool. Shower. Sink. Lav.. Stool. . Tub. Dish Washer. How does a Regulator Work?. How does a Regulator Work?. How does a Regulator Work?. How does a Regulator Work?.
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1. Cash AcmeA Division of Reliance Worldwide Corporation Training Program
Pressure Reducing Valves and Relief Valves
2. Mains Water Pressure
3. Domestic Water System
4. How does a Regulator Work?
5. How does a Regulator Work?
6. How does a Regulator Work?
7. How does a Regulator Work?
8. Valve Terminology Inlet Pressure
Initial Pressure
Upstream Pressure
Supply Pressure
P1 Outlet Pressure
Reduced Pressure
Delivery Pressure
Downstream Pressure
P2
9. Valve Terminology Pressure Differential (P1 - P2)
?P
Fall Off
Droop
P2 Variation Capacity
Flow Rate
Demand
10. Pressure Fall-Off Droop
Resistance of valve body
Seat not fully open
Measurement
As a percentage
As a pressure
Consequences
Reduction in final pressure at fixture or implement
11. EB-86/EB86U Regulator
12. Back Check Piston Assembly
13. EB86U Capacity Chart
14. EB-87/EB87U Regulator
15. EB-75 Valve
16. Balanced Construction Cash Watts Wilkins
EB-75 N250B -
EB-86 35B 60
EB-600 35BDU 70DU
17. EB-24U Regulator
18. Yoke Type Construction Cash Watts Wilkins
E-3 - -
E-41 223U5B 500
EB-24 U5B 600
19. E-56 Regulator
20. E-56 Features & Benefits Size 2, 2 1/2 & 3
Water, air
Threaded & flanged connections
Exceptionally simple design
Very high capacity
Max. inlet pressure 400 psig 25 to 125 psig set pressure range
Max. temperature 200o F
Competition - Watts 223, Wilkins 500LU
21. Comparable Cash Watts Wilkins
E-56 N223 500
22. EB25U
24. Installation Any position (horizontal is optimum)
Blow out the system
Introduce fluids slowly
Position for easy maintenance & repair
Use 2 valves when pressure reduction is greater than 4 to 1
25. Multiple & Parallel Installation When to use parallel installation
Situations of wide demand variations so reducing wear on large regulator
Better assurance of continuous water supply in critical installations
Less costly on original installation
Easier maintenance
When low flow is less than 10% of the valve capacity
26. Multiple & Parallel Installation
27. Multiple & Parallel Installation Selecting the regulators
Determine the flow rate
Select regulators totaling the flow rate required
Determine the regulator pressure settings
Fall off
Set smaller one 10psi higher
28. Multiple & Parallel Installation Regulator size
All regulators the same size
Provides most advantages
Only partially more efficient
Different size regulators
One valve operates at low flow and both at high flow
Both valves work at near capacity
29. Troubleshooting Pressure builds downstream
Thermal expansion of water during heating
Foreign matter in seat/disc area
Cut, worn or scored disc
Damaged seat
30. Troubleshooting Fluctuating pressure at downstream fixtures
Low water pressure in street mains
Heavy periodic demand
31. Troubleshooting Inadequate flow from fixtures
Pipelines to fixtures may be inadequate
House main supply may be inadequate
PRV may be adjusted too low
PRV may be the wrong size
Strainer could be fouled or clogged
32. Troubleshooting PRV hums, whistles or chatters
High velocity of flow
Worn or loosely assembled seat disc
Low demand verses large size PRV
33. Troubleshooting Leakage through weep hole or adjusting screw
Ruptured or cut diaphragm
Diaphragm assembly loose
34. Overview Regulators may be balanced or unbalanced
They absorb energy which gives creates fall-off (droop)
Flow is a function of pressure drop
Always size for the worst condition (highest flow at the lowest pressure drop)
Regulators usually fail in the open position
35. Hot Water Supply Systems 1 lb. Nitroglycerine = 2,000,000 ft. lbs. Explosive energy 1 lb. Water (flashed into steam) = 750,000 ft. lbs. Explosive energy
36. Hot Water Supply Systems
37. NCLX-5 Temperature & Pressure Relief Valve
38. Thermal Element
39. FV Series Commercial T & P Valves
40. Relief Valve Ratings
41. Pressure Relief Valve Seat Design A safety relief valve is a pressure relief valve actuated by inlet static pressure and characterized by rapid opening or pop action.
42. FWL-2 Valve
43. F-82 Valve
44. F-95 Valve
45. Residential Boiler
46. BFP Valve
47. Boiler Feed Valves A-40, AB-40, A-41, A-42, A-89
48. Dual Control Valves CQ-M
49. V-101 Valve
50. VAP Valve
51. BF Valves
52. Hose Bibb Backflow Preventers V-3 & VB-222
53. VR-801 Valve
54. A.S.S.E. Listed Valves Standard Valve Type Size
1012 BFP 1/2 & 3/4
1011 V-3 3/4
1003 E-Series 3 1/2 thru 2
1003 EB-24 1/2 thru 2 1/2
1001 V-101 1/2 thru 1
1003 EB-87 1/2 thru 1
1011 VB-222 3/4
1024 BF-1 3/4 & 1
1024 BF-2 1 x 3/4
1003 EB-600 3/4 thru 2
1003 EB-86 1/2 thru 2
55. L.A. Listed Valves File # Valve Type Size
M-660355 E 1/2 thru 2
M-660356 EB-24 1/2 thru 2 1/2
M-870152 V-101 1/2 thru 2
M-750091 V-3 3/4
M-750091 VB-222 3/4
M-850065 EB-86 1/2 thru 2
M-850065 EB-87 1/2 thru 1
M-850065 EB-600 1/2 thru 2
56. C.S.A. Listed Valves File # Valve Type Size C.S.A.#
67690 BF-1 3/4 B64.6
67690-1 BF-2 1 B64.6
67690-1 V-3 3/4 B64.2
67690-1 V-101 3/4 & 1 B64.1.1
67690-2 EB-87 1/2 thru 1 B356-M79
67690-3 BF-1 3/4 & 1 B64.6-M86
67690-3 BF-2 1 B64.6-M86
67690-4 V-101 1/2 B64.1.1
67690-5 WM-1 & WM-2 1/2 B125-M85
67690-6 BFP-C 1/2 & 3/4 B64.3-M88
67690-7 VB-222 3/4 B64.2.2-M88
67690-8 V-101 1 1/4 thru 2 B64.1.1
57. A.G.A. Listed Valves Certificate # Description
22-01D 3/4 FVX-Series 4
22-04C 1/2 & 3/4 Type NC, FC, FWL-2. Sears & Wards
22-07C 1 FVX-Series 4
22-10B 1 1/2 & 2 FVX
22-11B 1/2 & 3/4 VR-801
22-12A 1 & 1 1/4 Type FVX-Series 15
General 1 FVMX-3LS
(New valve added to cert. # 22-07C)
58. C.G.A. Valve Listing 1/2 & 3/4 Type NC & FWL-2
3/4 Type FVX/FVMX-3C, 5C, 8C Ser. 4
1 Type FVX/FVMX-3C, 5C Ser. 4
1 & 1 1/4 Type FVX/FVMX Ser. 15
1/2 & 3/4 Type VR-801
59. Canadian Province Listing Province CRN
Alberta 0G0053.62
British Columbia 0G0053.61
Manitoba 0G0053.64
New Brunswick 0G0053.67
Newfoundland 0G0053.60
Nova Scotia 0G0053.658
Ontario 0G0053.65
Quebec 0G0053.6
Saskatchewan 0G0053.653
60. I.A.P.M.O. Listed Valves File # Valve Type Size
2844 V-101 1/2 thru 2
504 E-3 1/2 thru 2
504 EB-87U 1/2 thru 1
504 EB-600 1/2 thru 2
504 EB-86 1/2 thru 2
504 EB-24 1/2 thru 2 1/2
1510 VB-222 3/4
1510 V-3 3/4
61. A.S.M.E. Listed Valves 2 F-82
1 1/2 & 2 FV(M)X
1/2 & 3/4 FS-15
1 1/4 F-82
3/4 NCLX (150#)
3/4 NCLX (125#)
1 FVX Ser. 4
1 1/2 F-82
3/4 FVX Ser. 4 3/4 F-30
3/4 FWL-2 (150#)
3/4 FWL-2 (125#)
3/4 FCLX
3/4 F-82
1 & 1 1/4 FVX Ser. 15
3/4 & 1 F-95
1 F-82