Moore 40, 41, and 42 Precision Pressure Regulators FEATURES & BENEFITS Multi-stage, low-droop precision regulators maintain constant output over wide changes in flow and sup- ply pressure Epoxy powder coat paint delivers improved corrosion resistance Wide selection of regulated pressures [1" to 450 psi] affords application versatility Patented Nullmatic pressure regulation system pro- vides reliable maintenance-free operation DESCRIPTION The Moore 40, 41, and 42 Precision Pressure Regulators control air pressures in applications where precise and dependable regulation is required, such as pneumatic in- strument circuits, test stands, production checking fixtures, and industrial air gages. As such, they are suitable for dead- SPECIFICATIONS end service, and flows up to a maximum of 110 scfm. A unique, two-stage piloted design provides outstanding Resolution Adjustment accuracy. Rugged construction—with no links, levers, piv- Better than 0.03º of regulated output ots, or other friction-producing members—ensures reli- able, maintenance-free operation. These features allow a Supply Pressure regulator to maintain constant output pressure, regardless Maximum & recommended pressures are listed on of even the widest changes in flow or supply pressures. In page 220 fact, a regulator using a Moore 40, 41, or 42 is practically Minimum: 5 psig above regulated output a self-contained pressure controller operating its supply- plunger valve via a built-in, high-gain pneumatic ampli- Supply Pressure Effect fier. Nominal ratio of change in regulated pressure for a change in supply A fine-turn, precision screw is used to manually load the 1:150 for Moore 40 and 42 range spring, which sets the regulated pressure. When the 1:100 for Moore 41 adjusting knob is turned clockwise, the increased spring force is exerted on the top diaphragm assembly, decreas- Ambient Temperature Limits ing the nozzle clearance and increasing the pilot pressure. -40 to 180ºF (-40 to 80ºC) Because the source for pilot pressure is supply air flowing to the pilot pressure chamber through the restriction screw, Ambient Temperature Effect the increased pilot pressure forces the exhaust diaphragm Approximately 1% of set pressure with standard assembly downward. This action closes the exhaust port, range spring; and approximately 0.1% with and contacts and moves the valve plunger, which opens Isothermal spring for 50°F (27ºC) temperature the supply port. This increases the regulated output, which change also feeds back to the top diaphragm assembly. The regu- lator locks-up or throttles at the new output value when Knob Adjustment the feedback force of the top diaphragm assembly equals Moore 40 & 42: the range spring force. Nominal 10%of full range for one complete turn Moore 41: A safety release valve is incorporated in the top diaphragm Nominal 15% of full range for one complete turn assembly of several models. It operates if the regulated pressure increases 3 to 5 psig more than the set pressure Droop Effect and exhausts air through the atmospheric vent in the top See Graph 1 housing. Overpressure causes the diaphragm to move up- ward, which opens the safety release valve. Maximum Air Flow See Graph 2 216 s Regulators & Relays - Regulator s Regulators & Relays - Regulator Air Consumption See Graph 3 Drift Effect See Graph 4 Exhaust-Flow Rate (at 25-psig setting) OPTIONS Pressure rise of 0.25 psig will result from flow of: Moore 40: 1.5 scfm Air Loading Moore 41: 2.4 scfm Provision for supplementary air loading (100 psig Moore 42: 1.7 scfm max) in addition to spring loading Moore 40, 42: 1/4" NPT Maximum Flow Capacity Moore 41: 1/8" NPT See Graph on page 219 Moore 40-2: Not available Add [A] into the model number. Standard Mounting Example: 40A15 In-line pipe or flush panel up to 1/4" thick (bushing for 3/4" thick panel is optional) Tapped Exhaust Connections: (supply and outlet) Provision for piping exhaust flow away from the Moore 40: 1/4" NPT regulator Moore 41: 1/8" NPT Moore 40, 42: 1/8" NPT Moore 42: 1/2" NPT Moore 41: Not available Add [E] into the model number. Materials of Construction Example 40E15 (and materials in contact with regulated media) Isothermal Range Spring Brass, stainless steel, Neoprene, aluminum, and zinc Reduces ambient temperature effect from approxi mately 1% of set pressure to approximately ACCESSORIES 0.1% for a 50°F [27°C] temperature range Moore 40: 15, 30, 50, & 100 psig ranges P/N 2932-19 - Mounting Bracket for surface mount- Moore 41: Not available ing (Moore 40 and Moore 42) Moore 42: 30, 50, & 100 psig ranges P/N 10963-73 - Mounting Bracket for surface mount- Add (M9) to the Moore 40 number. ing (Moore 41) Add (M26) to the Moore 42 model number. Example: 40-15M9, 42-30M26 P/N 3603-22 - Locknut Deletion of Safety Release Valve (SRV) Locknut with Longer Adjusting Screw The SRV increases exhaust flow capacity when the Available for all models. This option prevents in- regulator must exhaust large flows. Deletion of advertent regulator adjustment. the SRV will improve drift characteristics (see Moore 40: Add (M13) after the model number. Graph 4). The SRV is not available with the (Note: The Moore 40-2 is standard with the lock Moore 41. It is standard with: nut.) Moore 40: 2, 7, 15, 30, 50 & H50 pressure Moore 41: Add (M5) after the model number or ranges order accessory P/N 3603-22. Moore 42: 15, 30, 50, H30, & H50 pressure Moore 42: Add (M3) after the model number ranges Example: 40-15(M3) To delete the SRV, add an [X] into the model Bushings for mounting on panels up to ¾" thick number. Example: 40X15 (Standard maximum is ¼" thick). Slotted Adjusting Screw Moore 40: Add (M41) after the model number Available for all models. This option provides for Moore 41: Not available screwdriver adjustment of the regulator and in- Moore 42: Add (M14) after the model number cludes a locknut. Example: 40-15(M41) Moore 40: Add (M3) after the model number Moore 41: Add (M3) after the model number Moore 41: Add (M20) after the model number Example: 40-15(M3) GRAPH 1 Droop Effect Test Procedure: Each 30-psig-range regulator was adjusted to 25 psig with 100 psig supply and no flow. Flow was increased to maximum capacity. All regulated pressure readings were taken at gauge connection in the body of the regulator. 218 218 s Regulators & Relays - Regulator s Regulators & Relays - Regulator GRAPH 2 Maximum Air Flow, SCFM Delivered Moore 40 & 41 Regulators* * Supply pressure for other models will be determined by multiplying the pressure(s) above by the flow values shown below: Model Value GRAPH 3 Air Consumption Moore 40H 4.5 Moore 42 4 Moore 42H 14 GRAPH 4 Drift Effect The Nullmatic regulator bleeds only the amount of air that passes through the pilot nozzle when there is no demand for output flow. The exhaust port starts to close as soon as the flow of regulated air is increased to the output, and it closes completely before the pilot-plunger valve opens. Full pilot flow is then delivered to the output. Test Procedure: Regulators were set at 20 psig output with 100 psig air supply. Supply was turned off for one week, after which supply was turned on at time 0. MODEL SELECTION Supply Pressure Gauge (Opt.) psig Dia. Inches Model Range Pipe Panel Standard 3 No. psig Recommended Maximum Mtg. Mtg. Modifications 1 40-2 (1-50"H O) 5-10 25 3-1/2 3-1/2 E & X 2 40-7 (6-200"H O) 50 100 3-1/2 3-1/2 A, E & X 2 40-15 0.5-15 75 150 3-1/2 3-1/2 A, E & X 40-30 1-30 120 50 3-1/2 3-1/2 A, E & X 4 4 40-50 1-50 120 150 3-1/2 3-1/2 H, A, E & X 40-100 1.5-100 150 500 3-1/2 3-1/2 H, A & E 40-200 3-200 250 500 3-1/2 3-1/2 A & E 40-300 7-300 350 500 3-1/2 3-1/2 A & E 40-450 15-450 500 500 3-1/2 3-1/2 A & E 5 41-15 0.5-15 75 150 2 3-1/2 A 2 5 41N15 0.5-15 75 150 2 3-1/2 41-30 1-30 120 150 2 3-1/2 A 4 4 41-50 1-50 120 50 2 3-1/2 A 41-100 1.5-100 150 250 2 3-1/2 A 41-2550 25-50 120 150 2 3-1/2 42-15 0.5-15 75 150 3-1/2 3-1/2 A, E & X 42-30 1-30 120 150 3-1/2 3-1/2 H, A, E & X 4 4 42-50 1-50 120 150 3-1/2 3-1/2 H, A, E & X 42-100 1.5-100 150 500 3-1/2 3-1/2 H, A & E 42-200 3-200 250 500 3-1/2 3-1/2 A & E NOTES: (1) Includes locknut on adjusting stem (optional for all other models). (2) For use with Model 65 Square-Root Ectractor to maintain minimum 3 psig output. (3) At recommended supply pressure. (4) With 0-60 psig dial range. (5) For pipe-mounting, 2" dia. gauge (0-30 psig) is available. Standard Modifications H - High flow capacity. A - With pressure-tight top housing, containing 1/4" NPT connection for supplementary air loading. E - With 1/8" NPT connection to collect exhaust when used with gases other than air. X - Without safety release. 220 220 s Regulators & Relays - Regulator s Regulators & Relays - Regulator Pipe or Bracket- Panel-Mounting MOUNTING DIMENSIONS Mounted with Gauge with Gauge Moore 40 Moore 41 Moore 42