Model 1800 PFM Series Regulator. Technical Bulletin

Transcription

1 Model 0 PFM Series Regulator Technical Bulletin

2 Model 0 PFM Series Regulator 0 Elster American Meter The 0 PFM Series regulators are designed to control natural gas, air, nitrogen, carbon dioxide, propane vapor, and other non-corrosive gases in applications requiring precise outlet pressure control, medium-to-high capacity, and fast response to changing loads. General Information Outlet pressures between and are available. Operating temperature range is - F to 0 F (- C to 65 C). Maximum flow rate is,000 SCFH (,700 m 3 /h). Applications Model Number Description 3 PFM regulator. 3M PFM regulator with external sense. 883 PFM regulator with overpressure shutoff. 883M PFM regulator with external sense and overpressure shutoff. 883 PFM w/ussa regulator with overpressure shutoff. Features Variety of interchangeable orifices and spring ranges. 883M PFM w/ussa regulator with external sense and overpressure shutoff. USSA Shutoff Spring Ranges Spring Range Part Number Either -/" or " threaded body or " flanged body. Maintain a constant outlet pressure within +/-% absolute set pressure over a wide range of flow rates. Ideal for fixed factor measurement. Options Pilot Filter A filter (Part Number 737G00) containing a 5 micron element for the inlet gas to the pilot. Limited Relief or No Relief The pilot can have a limited relief or no relief. Safety Shutoff Devices Overpressure Shutoff (OPSO) The Overpressure Shutoff (OPSO) operates independently from the regulator, shutting off the gas supply in the event of extreme downstream pressure build-up. The recommended shutoff spring range should be a minimum differential of between the normal operating pressure and the shutoff pressure set point. OPSO in cocked position Over Pressure Shutoff Assemblies* Range Internal Sense Assembly Number External Sense to PSI 7986G0 7986G086 3 PSI 7986G G PSI 7986G G PSI 7986G G PSI 7986G G090 4 PSI 7986G G09 35 PSI 7986G35 N/A * Other configurations are available. External sense connection is /8" NPT or /8" BSP threads. Universal Safety Shutoff Assembly (USSA) The Universal Safety Shutoff Assembly (USSA) protects the downstream piping from overpressure conditions by shutting off the gas flow at the inlet side of the regulator orifice should an unusual operating condition occur. Overpressure shutoff set points are adjustable depending on spring range selected: - 44" W.C. 7007P - 84" W.C. 7007P P P P P P3 External Sense The 3M PFM and the 883M PFM have an external sense line connection and isolation assembly that allows a remote pressure to be introduced under the main diaphragm. Common uses of this feature would be in worker/monitor applications or where downstream turbulence is resulting in poor pressure control. A worker/monitor regulator installation consists of a regulator with an external sense connection and a regulator with an internal sense connection. The regulator selected to be the monitor is typically set at / PSI above the worker regulator for set pressures under PSI and - PSI above the worker regulators with set pressures above PSI. Upstream monitoring, as shown in the sketch below, is more commonly used. The external sense line should be connected at a point free of turbulence and preferably a minimum of five pipe diameters downstream of the second regulator. A worker-to-monitor conversion kit (part number 73909K0) is available. Typical Upstream Monitor Installation MONITOR WORKER (CONTROLLING) REGULATOR

3 Model 0 PFM Series Regulator 03 Elster American Meter Material Specifications Valve Body - High tensile ductile iron. Threaded or flange connections. Undercoated, electrodeposition epoxy primer and high solids polyurethane top coat. NPT threads conform to ANSI/ASME B... BSP-TR threads conform to BS EN 6. Seat Holder - Aluminum, anodized. 3 Plunger Valve Shaft - Stainless steel. 4 Lever Arm - Steel; Gear - Steel, sintered. 5 Diaphragm - Buna N, Nylon fabric reinforced. 6 Diaphragm Stem - Aluminum. 7 Spring Rod - Steel, Plated; Spring. 8 Follower - Aluminum. 9 Diaphragm Case - Precision die-cast aluminum with a proprietary conversion coating, electrodeposition epoxy primer and high solids polyurethane top coat. Pilot Regulator - Outlet pressure is controlled by the pilot. Four pressure ranges are available. Pressure Range Relieving Pilot Part Numbers Elevation Compensating (EC) (Pilot) - Compensates for wide variations in inlet pressure, eliminating the inlet pressure effect. Large orifice provides fast response to sudden load changes. Seal Plug - Cast aluminum. Non-Relieving Pilot to 5744K K008 to K K004 7 to 5744K K005 6 to 5744K K006 3 Closing Spring - Steel, zinc plated and yellow chromate. Color coded (Black-Yellow) for identification. 4 Diaphragm Plates - Steel, zinc plated and yellow chromate. Pilot Supply Tube - Steel, stainless. 6 Seat Disc - Buna N;, 70 or durometer rating. 7 Valve - Aluminum. Size 3 PFM 883 PFM with OPSO 7983P0 7983P P P P P P0 7983P P P P P035

4 Model 0 PFM Series Regulator 04 Elster American Meter Theory of Operation The 0 PFM Series is part of a family of pilot-loaded regulators that provide a precise outlet pressure, increased capacity, and fast response to changing loads. It is designed to handle inlet pressures up to with a variety of outlet pressures ranging from: to ; to 6 ; 7 to ; and 6 to depending on pilot selection. Since it can maintain outlet pressure within ± % of absolute set pressure, this regulator is ideal for fixed factor measurement at metering pressures from to. The main regulator is normally closed, using one spring for all outlet pressures to close the main valve when downstream load is off. The external pilot regulator applies a constant control pressure (Green) to the top of the main diaphragm. An increase in downstream load causes a pressure decrease under the diaphragm (Blue) thereby allowing the higher control pressure on top of the diaphragm to open the main valve. When downstream load decreases the slight pressure build-up under the main diaphragm overcomes the control pressure to close the main valve. The large bleed path in the diaphragm stem provides fast response to changing loads. The 0 PFM's pilot has an Elevation Compensating (EC) orifice that eliminates the inlet pressure effect found in most regulators. As the line pressure to the pilot increases, the EC orifice will move slightly towards the seat disk, compensating for the inlet pressure effect and assuring the outlet pressure remains the same. The EC orifice also improves the response time of the main regulator. This is accomplished by using a larger orifice which is pressure compensating and allows for higher pilot flow. This pilot flow is matched to the bleed passage through the diaphragm stem to provide a fast response to sudden changing loads. Outlet pressure is set by means of an adjustment screw in the pilot. Pilots can be equipped with a partial relief valve. Fixed Factor Measurement Fixed factor measurement is widely used as a means of economically metering and billing at elevated pressures without the use of a volume corrector. By controlling the metering pressure precisely to within ± % of the absolute outlet pressure, a standard index reading or a pressure compensating index can be used on the meter. For example, a meter installed at a location where atmospheric pressure is 4.7 PSIA with 5 flowing pressure would have an absolute outlet pressure of 9.7 PSIA. The 0 PFM is capable of maintaining the outlet pressure to within ± % of the absolute outlet pressure (9.7 x 0.0 = ± 0.97 ) when set at 5 outlet. Typical Performance Data Model No. 0 PFM Set Pressure P : Set Outlet Pressure P : Various Set Flow: 0 SCFH Test Medium: 0. Sp. Gr. Gas 4.7 PSIA at F INLET PRESSURE () 0 OUTLET PRESSURE () 5 0 % ABSOLUTE BAND 0 50 CAPACITY GAS - x00 SCFH

5 Model 0 PFM Series Regulator 05 Elster American Meter 0 PFM Series Regulator Capacity Performance -/" Outlet Set Point (0.07 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 0 (34.0) 350 (38.) 00 (4.5) 0 (65.) 0 (68.0) 50 (64.3) 0 (6.3) 50 (64.3) 50 (47.3) 8500 (.7) 50 (47.3) 80 (49.) 900 (53.8) 30 (96.3) 00 (6.6) 00 (6.6),0 (35.),0 (35.) 0 (79.3) 5500 (5.8),900 (365.3) 3,0 (373.8) 8,0 (5.) 8,0 (5.4) (.0) 70 (.) 4950 (.),900 (8.7) 0 Set Point (0.4 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 0 (34.0) 650 (46.7) (59.5) 30 (96.3) (7.5) 7000 (98.) 00 (69.9) 850 (33.6) 5050 (43.0) 7350 (8.) 00 (6.6),450 (95.9) 900 (53.8) (.8) 9350 (64.8),000 (83.),550 (98.8),0 (35.) 0 (65.) 5750 (6.8) 3,0 (37.4) 8,0 (54.0) 8,000 (509.8) 9,050 (539.5) (89.) 70 (.5),750 (446.0),0 (570.6) 3,000 (65.4) 3,0 (657.0) 4350 (3.) 9900 (.4),0 (63.5) 7,350 (774.6),350 (576.3) 5550 (7.),0 (356.8) 5,650 (76.4),0 (63.5) (84.) 4,0 (.) 6,450 (749.) 7500 (.4)

6 Model 0 PFM Series Regulator 06 Elster American Meter 0 PFM Series Regulator Capacity Performance -/" Outlet Set Point 5 (0.34 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 0 (3.6) 0 (45.3) 350 (66.6) 30 (96.3) 30 (96.3) 6850 (94.0) (7.5) 7750 (9.5) 4500 (7.4) 7000 (98.) (9.4),000 (83.) 900 (53.8) (7.5),050 (84.6),50 (38.6),0 (356.8) 0 (65.) 5750 (6.8) 3,850 (39.) 7,000 (48.4) 8,000 (509.8) 9,0 (555.) (89.) 70 (.) 6,350 (463.0),0 (6.7),500 (637.) 5,750 (79.) 4350 (3.) 9900 (.4) 3,750 (67.6) 3,000 (877.9) 8,950 (89.9) 5550 (7.),0 (356.8) 8,450 (5.7) 3,0 (9.9) (84.) 4,0 (43.5),0 (853.8) 7500 (.4) Set Point (0.69 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 00 (8.3) 0 (6.3) (.0) 5000 (4.6) 00 (69.9) (9.4) 00 (4.5) (89.) 4700 (33.) 5550 (7.) 4,0 (7.8) 0 (6.3) 450 (.4),50 (90.3),50 (346.9) 3,0 (37.4) 3,550 (666.9) 50 (86.4) 6750 (9.) 6,350 (463.0) 8,550 (55.3),000 (63.0) 9,350 (83.) 4350 (3.) 9900 (.4) 6,0 (739.) 3,650 (94.6) 39,000 (4.5) 5550 (7.),0 (356.8) 3,550 (9.8) 36,50 (6.6) 0 60 (86.9) 4,650 (44.9) 34,350 (97.8) 7550 (3.8)

7 Model 0 PFM Series Regulator 07 Elster American Meter 0 PFM Series Regulator Capacity Performance -/" Outlet Set Point (.03 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 0 (34.0) 0 (73.6) (.3) 30 (96.3) 9900 (.4),050 (84.6) 0 (.9) (8.9),50 (90.3),000 (339.8) 3,950 (678.3) 00 (85.0) 5050 (43.0),650 (443.) 9,0 (5.7),000 (63.0) 3,350 (887.8) 4500 (7.4) 9700 (74.7) 6,450 (749.) 36,450 (3.3) 39,000 (4.5) 50 (8.6),0 (35.) 3,950 (933.) 39,750 (.7) 0 60 (87.0) 4,0 (43.5) 33,850 (958.6) 7500 (.4) Set Point (.38 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 750 (49.6) 50 (4.7) 5650 (.0) 90 (66.),0 (5.9),50 (.8) 700 (76.5) 4750 (34.5),0 (47.6) 9,000 (538.),500 (637.) 3,0 (9.9) 40 (4.6) 9650 (73.3) 6,50 (743.4) 36,350 (9.4) 4,0 (65.4) 50 (8.6),50 (346.9) 3,750 (97.5) 44,50 (3.) 0 60 (86.9) 4,0 (.) 3,750 (97.5) 7500 (.4),0 (447.5)

8 Model 0 PFM Series Regulator 08 Elster American Meter 0 PFM Series Regulator Capacity Performance -/" Outlet Set Point 5 (.7 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 0 (33.9) 3450 (97.7) 650 (77.0),0 (38.5) 4,0 (.) 0 (65.) (.3),450 (95.9),500 (439.0),500 (637.),0 (866.6) 4350 (3.) 9450 (67.6) 4,850 (703.8) 36,350 (9.4) 4,500 (75.3) 5550 (7.),0 (344.) 3,0 (9.9) 45,500 (88.6) 0 60 (86.9) 3,950 (395.) 3,500 (89.) 7500 (.4),0 (433.3) Set Point (.07 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 50 (58.) (.8) 9700 (74.7),0 (344.),500 (35.7) 4,0 (688.) (8.9) 90 (.5) 3,0 (66.7) 36,000 (9.5) 4,750 (8.4) 50 (.9),0 (344.),0 (8.9) 45,500 (88.6) (88.3) 3,750 (389.4) 3,950 (933.) 7500 (.4),0 (433.3)

9 Model 0 PFM Series Regulator 09 Elster American Meter 0 PFM Series Regulator Capacity Performance " Outlet Set Point (0.07 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 00 (8.3) 0 (34.0) 0 (45.3) 500 (70.8) (59.5) 4500 (7.4) 00 (56.6) 50 (44.4) (8.9) 7500 (.4) 70 (.),900 (8.7) 00 (4.5) 30 (96.3) 5900 (67.) (3.),0 (0.) 8,0 (53.4) 0 (65.) 50 (47.3),900 (8.7),0 (447.5) 8,0 (5.) 6,0 (759.0) 30 (93.5) 60 (86.9) 4,0 (696.7) 3,000 (65.4) 4900 (38.8) 90 (77.5) 0 Set Point (0.4 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 00 (8.3) 450 (4.) 0 (65.) 00 (85.0) 4700 (33.) (75.6) 4700 (33.),000 (83.) 4,500 (4.6),0 (88.9) 5,000 (708.0) 900 (53.8) 3900 (.4) 8500 (.7),0 (86.0),0 (6.7),0 (866.6) 500 (70.8) 50 (47.3),500 (354.0) 8,000 (509.8) 3,500 (89.),0 (4.3) (87.8) 00 (69.9) 8,000 (509.8) 4,000 (679.7) 38,500 (90.3) 4,000 (6.) 40 (4.6) 7,000 (764.6),000 (566.4) 5,000 (47.6) 5500 (5.8),500 (35.7) 4,000 (679.7),000 (566.4) (89.7) 4,0 (7.8) 8,000 (509.8) (3.) 7,0 (498.4)

10 Model 0 PFM Series Regulator Elster American Meter 0 PFM Series Regulator Capacity Performance " Outlet Set Point 5 (0.34 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 900 (5.5) 0 (36.8) 350 (38.) 500 (70.8) 700 (76.5) (75.6) (.8),0 (345.5),0 (67.4) 900 (53.8) 30 (96.3) 80 (35.),000 (339.8),000 (594.7) 9,0 (84.) 500 (70.8) 4850 (37.4),0 (345.5),000 (566.4),0 (866.6) 4,700 (.9) (87.8) (75.6) 8,000 (509.8) 5,000 (708.0) 39,000 (4.5) 44,000 (46.) 40 (4.6) 7,000 (764.6) 3,000 (877.9) 5,000 (47.6) 5450 (4.3),500 (35.7) 3,500 (9.4) 3,000 (906.) (89.7) 4,0 (5.0) 8,000 (793.0) (3.) 7,0 (49.8) Set Point (0.69 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 350 (9.9) 500 (70.8) 50 (8.6) 50 (44.4) 700 (9.8) (89.) 70 (.9),500 (97.4) 3,000 (368.),0 (5.9) (59.5) 40 (4.6),000 (339.8),000 (566.4) 7,700 (784.5) 3,750 (97.5) 00 (85.0) (75.6) 7,500 (495.6) 8,000 (793.0) 39,50 (.6) 45,000 (74.4) (.8) 7,000 (764.6) 46,000 (.7) 56,0 (88.8) 50 (.9),0 (35.) 34,0 (97.4) 5,000 (47.6) 0 60 (86.9) 4,350 (6.4),500 (47.0) 80 (35.) 7,0 (489.9)

11 Model 0 PFM Series Regulator Elster American Meter 0 PFM Series Regulator Capacity Performance " Outlet Set Point (.03 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 750 (.) 850 (.7) 5050 (43.0) 6900 (95.4) 90 (63.3) (7.8) (59.5) 4850 (37.4),000 (339.8) 4,0 (68.5),50 (856.7) 00 (85.0) 50 (.9) 6,500 (467.3) 8,000 (793.0) 35,0 (08.) 43,900 (43.) (8.9) 7,000 (764.6) 46,000 (.7) 56,0 (90.) 5350 (.5),0 (35.) 34,0 (968.5) 5,000 (47.6) (89.7) 4,350 (6.4),500 (47.0) 80 (35.) 7,0 (489.9) Set Point (.38 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 700 (48.) 0 (79.3) 7,500 (.4) 3,000 (368.) 8,000 (509.8) 8,0 (58.3) 0 (79.3) (6.),000 (3.5) 7,000 (764.6) 34,000 (96.9) 34,500 (977.0) (8.9) 00 (6.6) 6,000 (736.3) 47,000 (33.0) 5,450 (457.) 50 (0.),500 (35.7) 33,0 (957.) 58,000 (64.6) (89.7) 4,000 (396.5),000 (3.8) 80 (35.) 7,0 (487.)

12 Model 0 PFM Series Regulator Elster American Meter 0 PFM Series Regulator Capacity Performance " Outlet Set Point 5 (.7 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 700 (9.8) 3450 (97.7) (74.) 80 (49.),500 (35.7) 4,0 (7.8) 500 (70.8) (6.),000 (83.),000 (566.4) 7,0 (773.) 38,500 (90.3) (8.9) 7000 (98.) 4,0 (688.) 44,000 (46.) 5,0 (447.) 50 (0.),000 (3.5) 34,000 (96.9) 59,000 (670.9) (89.7) 4,0 (.),000 (3.8) 80 (35.) 7,0 (484.3) Set Point (.07 bar) at 0 SCFH gas at F and 4.7 PSIA (.6 C 0 (34.0) (6.) 7000 (98.) 4,000 (396.5) 3,0 (66.7) 3,0 (97.6) 00 (3.3) 7000 (98.) 3,000 (65.4) 4,500 (3.6) 46,0 (35.4) 50 (0.),000 (3.5) 34,0 (97.4),000 (699.) (89.7) 4,0 (399.3),000 (3.8) 80 (35.) 7,0 (484.3)

13 Model 0 PFM Series Regulator 3 Elster American Meter 0 PFM Series Regulators - Other Technical Data Full-Open Regulator Relief Capacity For sizing downstream relief valves, use the following formulas to determine the regulator full-open capacity: Critical flow rates Q = 0.5 C x P G Sub-critical flows P Q = C x h G Critical flow occurs when the absolute outlet pressure is less than about / of the absolute inlet pressure. Q C P P h G Maximum capacity of regulator constant (see table below) absolute pressure (PSIA) Outlet absolute pressure (PSIA) Differential pressure Specific gravity of gas Constants C Other Gas Capacities To determine the capacity of these regulators for gases other than natural gas, multiply the values within the capacity tables by a Specific Gravity Conversion Factor (F g). The table below lists this factor for some of the more common gases. Gas Type Specific Gravity Conversion Factor (F g ) Air Butane Carbon Dioxide Nitrogen Propane To calculate the Conversion Factor for other gases: (F g) = Specific gravity of gas on which table is based Specific gravity of gas being used Example: If using propane, the Specific Gravity Conversion Factor is : (F g) = (F g) = (F g) = 0.66 Specific gravity of natural gas (0.6) Specific gravity of propane (.53) Regulator Pressure Rating (8.6 bar) = Maximum recommended inlet pressure for normal service. Maximum recommended pressure may vary with orifice size. ( bar) = Maximum inlet pressure for abnormal or emergency service, without causing damage to regulator case. (38 mbar) = Maximum outlet pressure for normal service. 35 (689 mbar) = Maximum outlet pressure which can be contained by pressure carrying components (no flange leakage to atmosphere except for normal relief action). If regulator is subjected to these conditions, it should be removed from service. (3.5 bar) = Maximum outlet pressure for abnormal service without damage to internal components. If regulator is subjected to these conditions, it should be removed from service.

14 Model 0 PFM Series Regulator 4 Elster American Meter 0 PFM Series Regulator Dimensions A B C Model 3 PFM -/" and " Pilot Loaded Regulator A 3-/" 88.9mm B mm C " 4.8mm D -3/4" 73.05mm D E " 54.0mm F mm G -/" * 66.7mm H 6".4mm I 3" 76.mm E *.00" (54mm) long value head also available F G H I A B C Model 883 PFM -/" and " Pilot Loaded Regulator A 5-/" 39.7mm B mm C " 4.8mm D D -3/4" 73.05mm E " 54.0mm F mm G -/" * 66.7mm H 6".4mm I 3" 76.mm E *.00" (54mm) long value head also available F G H I

15 Model 0 PFM Series Regulator Elster American Meter Regulator Assembly Positions 3 PFM Valve Head Position "A" Valve Head Position "B" Pilot Vent Pilot Vent B Valve Head Position "C" Pilot Vent PFM Valve Head Position "A" OPSO Vent C B A D Pilot Vent 4 3 Valve Head Position "D" Pilot Vent Valve Head Position "B" OPSO Vent A D C B 4 3 Pilot Vent 4 3 Vent Position AL-00 Meter with 883 PFM Regulator Example of Regulator Assembly Position In the above drawing the 883 PFM regulator shown has the valve head in position C" (Flow upward). The pilot vent is in position " (Pointed down) and the OPSO vent in position B" (Also pointed down). This would be assembly position CB". Ordering Information. Model Number. Connection Size: -/" Threaded, " Threaded, " Flanged 3. Pressure Range: up to 4. Outlet Set Pressure: to 5. Main Diameter:,,,,, - 6. Gas Specific Gravity 7. Regulator Assembly Position: See left 8. Pilot Filter Option: Yes/No 9. OPSO Spring Range: See page Shipping Weight Model 3 PFM Lbs. Threaded Connection 35 Lbs. Flanged Connection Valve Head Position "C" Pilot Vent 4 Valve Head Position "D" OPSO Vent D Shipping Weight Model 883 PFM 3.5 Lbs. Threaded Connection 37.5 Lbs. Flanged Connection 3 OPSO Vent D C B A Pilot Vent C B A 4 3

16 About Elster Group A world leader in advanced metering infrastructure, integrated metering, and utilization solutions to the gas, electricity and water industries. Elster s metering and system solutions reflect over 70 years of knowledge and experience in measuring precious resources and energy. Elster provides solutions and advanced technologies to help utilities more easily, efficiently and reliably obtain and use advanced metering intelligence to improve customer service, enhance operational efficiency, and increase revenues. Elster's AMI solutions enable utilities to cost-effectively generate, deliver, manage, and conserve the life-essential resources of gas, electricity, and water. Elster has a staff of over 7,500 serving customers globally in North America, Central America, South America, Europe, Asia, Africa and the Middle East. Elster American Meter Industrial Road Nebraska City, NE 684 USA T F Elster Canadian Meter T F Elster American Meter. All rights reserved. Information contained herein is subject to change without notice. Product specifications may change. Contact your Elster American Meter representative for the most current product information. Printed in the United States. EAM-TB855.4-EN-P - January 09 Supersedes SB855.3