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Summary of Contents for Sensus 441-57S
- Page 1 RM-1360 R9 Models 441-57S Regulator Installation and Maintenance Instructions...
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Page 2: Installation And Start-Up
Installation and Maintenance Instructions Model 441-57S Regulator he Model 441-57S Regulator is an excellent general purpose gas pressure regulator for larger loads. Use it for natural gas, air, dry CO , propane, butane, and other gases. Installation and Start-Up Maximum Inlet Pressures... - Page 3 Installation and Maintenance Instructions Model 441-57S Regulator Use lubricants sparingly and with care to avoid exposing CAUTION tacky surfaces to the gas stream. Such surfaces could Turn gas on very slowly. If an outlet stop valve is used, cause dirt accumulation on close clearance parts.
- Page 4 If orifice 29 was removed, reinstall it. (Use a flashlight if necessary). Insert lower valve assembly and screw into place by a few Complete steps 7, 8, and 9 under “To Assemble 441-57S”. turns (50h screws into 50e). To Service Diaphragm...
- Page 5 (except that 50e or 50i does not yet screw into 24). pressurization is the lowest of the maximum pressures permitted Install centerpiece and lower diaphragm case 36 and by federal codes, state codes, Sensus bulletin RDS-1498, or other 40 or 40a. applicable standards. The Method of providing over...
- Page 6 Installation and Maintenance Instructions Model 441-57S Regulator (Minimum Service Space) Typical Arrangements and Dimensions Model Adjustment Screw Remove Vent (Indoor or Outdoor Installation) for Desired (If Required) Vent Outlet Pressure Regulator F (Face to Face, in.) Downstream Body Type 2" Pipe 3"...
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Page 7: Dimensions In Inches
Installation and Maintenance Instructions Model 441-57S Regulator Dimensions in Inches Spring Ranges Outlet Nominal Pressure Spring Diaphragm Min. to Max Color Size (I.D.) 3 to 6 psi Yellow 2" Pipe 5 to 9 psi Gray 3" Pipe 7-1/2 to 15 psi... - Page 8 Installation and Maintenance Instructions Model 441-57S Regulator Model 441-57S Condensed Parts List 2", 3", 4", and 6" Models 2" Models Illustration Part Illustration Part Number Description Number Number Description Number Hex Cap Screw, 1/4" – Tetraseal (or O-Ring), 1-3/4" x 2"...
- Page 9 Installation and Maintenance Instructions Model 441-57S Regulator 4" Models 6" Models Illustration Part Illustration Part Number Description Number Number Description Number Lower Diaphragm Plate 091-00-022-01 Lower Diaphragm Plate 091-00-022-02 O-Ring, 5/8" x 3/4" 902922 O-Ring, 5/8" x 3/4" 902922 O-Ring, 11/16" x 7/8"...
- Page 10 Installation and Maintenance Instructions Model 441-57S Regulator Model 441-57S Condensed Parts List 3" Models 4" Models Illustration Part Illustration Part Number Description Number Number Description Number Valve Assembly, 2-1/8", Valve Assembly, 3", brass trim 090-22-515-40 brass trim, Polyurethane 090-20-515-40 Polyurethane (Red, 65-75 Duro) (Red, 65-75 Duro) Valve Assembly, 3", stainless steel...
- Page 11 Installation and Maintenance Instructions Model 441-57S Regulator 4" Models (continued) 6" Models (continued) Illustration Part Illustration Part Number Description Number Number Description Number Female Valve Stem, brass 090-22-016-40 Molded Valve, 4-1/4", Buna-N 090-24-315-00 Female Valve Stem, stainless steel 090-22-016-41 (Black, 50-55 Duro) all trim...
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Page 12: Installation And Maintenance Instructions
Other Gases The Model 441-57S Regulator is mainly used on natural gas serv- ices; however, this regulator will perform equally as well on other gases. When using the Model 441-57S Regulator on other gases,...
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