Emerson S200 Instruction Manual
Contents
1. PUSHER POST A6198 ORIFICE TYPE S202 Figure 2 Operational Schematics Principle of Operation Refer to Figure 2 When downstream demand decreases the pressure under the diaphragm increases This pressure overcomes the regulator setting which is set by the control spring Through the action of the pusher post assembly lever and valve stem the valve disk moves closer to the orifice and reduces gas flow If demand downstream increases pressure under the diaphragm decreases Spring force pushes the pusher post assembly downward and the valve disk moves away from the orifice and the gas flow increases The Types S202 and 202H regulators include an internal relief valve Internal relief is used to help minimize overpressure Any outlet pressure above the start to discharge point of the non adjustable relief spring moves the diaphragm off of the relief seat allowing excess pressure to discharge through the vent Typical start to discharge values are 7 inches w c to 2 psi 17 to 138 mbar above the outlet pressure setting depending on control spring used S201 and S202 Series TYPE NUMBER OPTIONS REGULATOR TYPE 1 Regulator 2 to 30 inches w c 5 to 75 mbar outlet range 2 Regulator 2 to 30 inches w c 5 to 75 mbar outlet range with Internal Relief PRESSURE OUTLET RANGE H High Pressure Regulator 1 to 5 psi 0 07 to 0 34 bar outlet range with heavy diaphragm pla2. 184219012 46 Pipe Plug 1 8 NPT Brass 1A621914012 With 1 8 NPT Test Gauge Connection 53 Hex Nut Plated steel Type S201K only 1A3524X0082 1 1 2 NPT 1P799219012 55 Flapper Stem 302 Stainless steel 1H976335022 2 NPT 1P799319012 56 Lower Flapper Nylon PA 1H976406992 NPS 2 DN 50 CL125 Flanged 2P806119012 57 Upper Flapper Nylon PA 1H976506992 Steel 58 Flapper Orifice 302 Stainless steel T13609T0012 1 1 2 NPT 1K787922012 59 Self tapping Screw Steel 3 required 1H976728982 2 NPT 1K792122012 60 Spring 302 Stainless steel 2 required 1H976837022 24 Cap Screw Plated steel 61 Screen Stainless steel 1E564843122 Type S201 1H975424272 62 Snap Ring 302 Stainless steel 1E564937022 Type S201H 1A667824052 Type S201K 1K427828982 Stem Plated steel Types S202 S202H Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai China 201206 Tel 86 21 2892 9000 Europe Bologna Italy 40013 Tel 39 051 4190611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 1H969224272 Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Singapore Singapore 128461 Tel 65 6777 8211 Europe Bologna Italy 40013 Tel 39 051 41
3. 90611 Gallardon France 28320 Tel 33 0 2 37 33 47 00 For further information visit www emersonprocess com regulators TESCOM Emerson Process Management Tescom Corporation USA Headquarters Elk River Minnesota 55330 2445 USA Tel 1 763 241 3238 Europe Selmsdorf Germany 23923 Tel 49 0 38823 31 0 The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls Inc a business of Emerson Process Management The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management product remains solely with the purchaser EMERSON Process Management Emerson Process Management Regulator Technologies Inc 1981 2009 All Rights Reserved
4. ICE SIZE INLET PRESSURE SETTING inches m Optimum Maximum Psig bar Psig bar 1 4 6 3 125 8 6 125 8 6 3 8 9 5 100 6 9 125 8 6 1 2 13 60 4 1 100 6 9 3 4 19 25 1 7 60 41 1 25 13 0 90 25 1 7 1 3 16 30 5 0 34 13 0 90 Table 3 Outlet Pressure Ranges SPRING RANGE SPRING FREE SPRING WIRE TYPE NUMBER eRScaue ae PART NUMBER LENGTH DIAMETER COLOR CODE He INCHES mm INCHES mm 2 0to4 5 5 to 11 11892527022 6 12 155 0 109 2 77 Brown 3 5 to 6 5 9 to 16 1892627022 7 53 191 0 112 2 84 Red 201 and 202 5 0 to 9 0 12 to 22 1892727012 7 88 200 0 130 3 30 Black 8 5 to 18 0 21 to 45 1893227032 7 50 191 0 156 3 96 Gray 14 0 to 30 0 35 to 75 1893327032 7 25 184 0 182 4 62 Dark Green 1 0 to 2 0 psig 0 07 to 0 14 bar 1H975827032 7 09 180 0 225 5 72 Dark Blue 201H and 202H 1 5 to 3 25 psig 0 10 to 0 22 bar 1H975927032 6 91 176 0 250 6 35 Orange 2 0 to 5 0 psig 0 14 to 0 34 bar 1P615427142 6 50 165 0 295 7 49 Yellow R 2 0 to 5 5 psig 0 14 to 0 38 bar 0Y066427022 6 00 152 0 363 9 22 Green Stripe 4 0 to 10 0 psig 0 28 to 0 69 bar 1H802427032 6 00 152 0 406 10 3 Cadmium Before installing the regulator check for damage which might have occurred in shipment Also check for dirt or foreign matter which may have accumulated in the regulator body or in the pipeline Apply pipe compound to the external threads of the pipeline and install the regulator so that flow is in the direct
5. Instruction Manual Form 5171 October 2009 S201 and S202 Series 201 and S202 Series Gas Regulators W1919 Figure 1 Typical S200 Gas Regulator Fisher regulators must be installed operated and maintained in accordance with federal state and local codes rules and regulations and Emerson Process Management Regulator Technologies Inc instructions For LP Gas service an approved regulator such as one listed by U L should be used The installation in most states must comply with NFPA standards If the regulator vents gas or a leak develops in the system service to the unit may be required Failure to correct trouble could result in a hazardous condition Call a gas service person to service the unit Only a qualified person must install or service the regulator www emersonprocess com regulators Introduction Scope of the Manual This instruction manual provides instructions for installation adjustment maintenance and parts ordering information for Types S201 S201H S201K 202 and S202H gas service regulators Description 201 and S202 Series regulators are typically installed on industrial and commercial applications The Types S202 and S202H regulators contain an internal relief valve Units with an H or K suffix are similar to the basic regulators but deliver a higher outlet pressure of 1 to 5 psig 69 mbar to 0 35 bar and 2 to 10 psig 0 14 to 0 69 bar respectively S
6. Steel 12 required 1B136324052 15 Hex Nut Plated steel 12 required 1A309324122 If the seating edge of the orifice key 20 16 Disk Holder Assembly is nicked or rough remove the orifice from ae Rue irae i 1P7349000A2 the body Change to a new part when 3 4 inch 19 mm lar ifi ger orifices 1J1680X0012 reassembling the regulator If the orifice is 17 Diaphragm Plate Steel Type S201K 1A347825022 replaced with a different size change EA S 2 required i ae the nameplate to state the new size and 30 Orifice Aluminum maximum inlet pressure 1 4 inch 6 3 mm T13833T0012 3 8 inch 9 5 mm 1H979309022 Reassemble the regulator in reverse order of the ead Me se AEAEE 3 4 inc mm above steps 1 inch 25 mm 1H979609022 1 3 16 inch 30 mm 1H979709022 S201 and S202 Series SECTION A A 4 5 2 32 14 1 15 25 6 8 10 9 PARTS NOT SHOWN 46 APPLY LUB SEA ADH Figure 5 Type S202 Regulator Assembly 21 19 11 16 13 20 12 S201 and S202 Series Key Description Part Number Key Description Part Number 21 Body 25 Relief Valve Spring Plated steel Cast Iron Types S202 S202H Standard 1H976027012 1 1 2 NPT 1J190319012 For U L listed units with 1D8933 or 2 NPT 1H974919012 lighter springs 1R100427012 NPS 2 DN 50 CL125 Flanged 2K
7. TYPE 289H RELIEF VALVE TYPE S201 REGULATOR Figure 4 Type S201 Regulator Installed with the Vent Pointed Downward and with a Type 289H Relief Valve for High Capacity Relief any portion of the regulators beyond the limits in the Specifications section and Table 1 may cause leakage damage to regulator parts or personal injury due to bursting of pressure containing parts Some type of external overpressure protection should be provided if inlet pressure will be high enough to damage downstream equipment Common methods of external overpressure protection include relief valves monitoring regulators shutoff devices and series regulation If the regulator is exposed to an overpressure condition it should be inspected for any damage that may have occurred Regulator operation below these limits specified in the Specifications section and Table 1 does not preclude the possibility of damage from external sources or from debris in the pipeline S201 and S202 Series Table 1 Maximum Allowable Inlet Pressures Table 2 Maximum Outlet Pressure Setting TYPE NUMBER DIAPHRAGM HEAD MAXIMUM OUTLET 201 S202 Light 30 inches w c 75 mbar 201H S202H Heavy 5 psig 0 34 bar 201K Heavy 10 psig 0 69 bar Maximum emergency outlet casing pressure for S200 Series is 15 psig 1 0 bar ORIF
8. d Dy MiSs Meno ls necessary Aluminum Types 201 201H S202 S202H 1L928608012 for good regulation Be sure the Steel Type 201K 1R8085T0012 diaphragm does not fold over at the 4 Closing Cap Aluminum Types S201 S201H S202 S202H 1L928308012 flange when reassemblin g g Brass Type S201K 1H798714012 5 Closing Cap Gasket Neoprene CR 1N446206992 r 6 Upper Lower Spring Seat Disassembly to Replace Valve Disk Aluminum Types S201 S201H S202 S202H 1L928708012 fi Ri Brass Type S201K 2 required 1H797414012 Orifice and O Rings 7 Diaphragm and Diaphragm Head A Types S201 S202 Use with 1 Remove the cap screws key 18 Figure 5 which 1D8933 and lighter springs 1L1544X0012 hold the lower spring casing key 9 to the body Types S201H and S202H Use key PA J Separate the lower spring casing from with 1H9758 and heavier springs 1L1545X0012 the body Type S201K Diaphragm only 1K649602052 8 Pusher Post Aluminum Types S201 S201H S201K 2H980608012 Check the body O ring key 19 for wear Types 202 S202H 2H975208012 9 Lower Casing Assembly Aluminum Stainless steel 1H9751X0012 Examine the valve disk key 16 for nicks cuts 10 Lever Steel 1H974028992 and other damage Unscrew the disk holder 11 Pin 303 Stainless steel 1972935032 bly k 16 d it with t 12 Machine Screw Steel 2 required 1B420428982 assembly key 16 and replace it with a new par 13 Valve Stem Assembly 1H9748000A2 if necessary 14 Cap Screw
9. et setting turn the adjusting screw key 3 Figure 5 clockwise To decrease the outlet setting turn the adjusting screw counterclockwise 3 Replace the closing cap or tighten the hex locknut Shutdown Installation arrangements may vary but in any installation it is important that the valves be opened or closed slowly and that the outlet pressure be vented before venting inlet pressure to prevent damage caused by reverse pressurization of the regulator The steps below apply to the typical installation as indicated 1 Open the vent valves downstream of the regulator 2 Slowly close the upstream block valve 3 Inlet pressure will automatically be released downstream as the regulator opens in response to the lowered pressure on the diaphragm Maintenance To avoid personal injury or equipment damage do not attempt any maintenance or disassembly without first isolating the regulator from system pressure and relieving all internal pressure as described in Shutdown S201 and S202 Series Regulators that have been disassembled for repair must be tested for proper operation before returned to service Only parts manufactured by Emerson Process Management Regulator Technologies Inc should be used for repairing Fisher regulators Relight pilot lights according to normal startup procedures Due to normal wear or damage that may occur from external sources this regulator should be inspected and maintained period
10. he type number orifice size spring range and diaphragm when reassembling date of manufacture are stamped on the nameplate Always provide this information in any correspondence with your local Sales Office regarding replacement parts or technical assistance 6 Reassemble the spring case unit in the reverse order of the above steps Before tightening the cap screw or stem into the pusher post place the loosely assembled diaphragm and diaphragm head assembly into position in the lower casing being sure that the pusher post is hooked on the lever Rotate the diaphragm so that the diaphragm and lower casing holes are aligned Tighten the screw or stem Recommended spare part When ordering replacement parts reference the key number of each needed part as found in the following parts list Separate kit containing all recommended spare parts is available Parts List N CAUTION Key Description Part Number Spare Parts Repair Parts Kit includes keys 5 7 16 and 19 Before tightening cap screws key 14 Types 201 202 RS201X00012 replace the spring and adjusting screw Types S201H 202H RS201HX0012 Turn the adjusting screw to about Type S201K RS201KX0012 F aie z i 1 Spring Case mid position This will stretch the Anini 4L142308032 oversized diaphragm to ensure slack in Pinned for heavy spring 1J718699022 the assembled diaphragm The slack 2 Spring Steel See Table 3 ted by this method is n r 3 Adjusting Screw create
11. ically The frequency of inspection and replacement of parts depends upon the severity of service conditions or the requirement of local state and federal rules and regulations Disassembly to Replace Diaphragm 1 Remove the closing cap key 4 Figure 5 or loosen hex locknut Turn the adjusting screw or nut key 3 counterclockwise to ease spring compression 2 For Types S201 S201H S202 and S202H units remove the adjusting screw and spring key 2 For Type S201K remove the adjusting screw hex locknut and closing cap key 4 the upper spring seat key 6 and spring key 2 3 Remove hex nuts key 15 and cap screws key 14 Separate the upper spring case key 1 from the lower casing assembly key 9 Note If disassembling a Type S202 or S 202H regulator lift the upper spring case straight up in order to avoid hitting the stem key 24 4 Slide the diaphragm and diaphragm head assembly key 7 away from the body key 21 to unhook the pusher post key 8 from the lever key 10 Lift off the diaphragm and diaphragm head assembly 5 Unscrew the cap or reset stem key 24 which fastens the lower spring seat key 6 to the pusher post to separate the lower spring seat diaphragm and diaphragm head assembly and pusher post The relief valve spring key 25 will also have to be removed from Types S202 and 202H regulators S201 and S202 Series Note Parts Ordering Take care not to pinch or tear the T
12. ion of the arrow cast on the body The diaphragm casing assembly can be rotated to any position relative to the body Loosen the two cap screws key 18 Figure 5 in order to rotate the diaphragm casing assembly Do not install the regulator in a location where there can be excessive water accumulation such as directly beneath a downspout If the regulator is used in conjunction with a Type 289H relief valve it should be installed as shown in Figure 4 The outside end of the vent line should be protected with a rainproof assembly The Type 289H should be set 10 inches w c 25 mbar higher than the outlet pressure setting of the regulator up to 30 inches w c 75 mbar outlet pressure For pressure greater than this set the Type 289H 0 75 psi 0 05 bar higher than the outlet pressure setting of the regulator The S201 and S202 Series regulators have 1 NPT screened vent openings in the spring case If necessary to vent escaping gas away from the regulator install a remote vent line in the spring case tapping Vent piping should be as short and direct as possible with a minimum number of bends and elbows The remote vent line should have the largest practical diameter Vent piping on regulators with internal relief Types S202 and S202H must be large enough to vent all relief valve discharge to atmosphere without excessive backpressure and resulting excessive pressure in the regulator Periodically check all vent openings to be s
13. pecifications The Specifications section lists the specifications for the regulators The following information is stamped on the regulator at the factory type number date of manufacture spring range orifice size maximum inlet pressure maximum operating outlet pressure and outlet pressure which may damage regulator parts 4 EMERSON Process Management D400007X012 S201 and S202 Series Specifications Available Configurations See Figure 3 Body Size and End Connection Styles 1 1 2 or 2 NPT inlet and outlet and NPS 2 DN 50 CL125 FF flanged Maximum Allowable Inlet Pressures See Table 1 Maximum Emergency Outlet Pressure 15 psig 1 0 bar Outlet Pressure Range 2 0 inches w c to 10 psig 5 mbar to 0 69 bar Orifice Size 1 4 3 8 1 2 3 4 1 and 1 3 16 inches 6 4 9 5 13 19 25 and 30 mm Temperature Capabilities 20 to 150 F 29 to 66 C Pressure Registration Internal Approximate Weight 22 pounds 10 kg 1 The pressure temperature limits in this Instruction Manual and any applicable standard or code CONTROL SPRING VALVE DISK pe qe PUSHER POST A6197 ORIFICE t EE INLET PRESSURE 99 OUTLET PRESSURE EZ ATMOSPHERIC PRESSURE TYPE S201 imitation for valve should not be exceeded RELIEF VALVE SPRING VALVE DISK DIAPHRAGM T t 9 S
14. te K High Pressure Regulator with external adjusting screw 2 to 10 psi 0 14 to 0 69 bar outlet range Not an option for S202 Figure 3 Available Configurations Installation Personal injury or system damage may result if this regulator is installed without appropriate overpressure protection where service conditions could exceed the limits given on the Specifications section and regulator nameplate Regulator installations should be adequately protected from physical damage All vents should be kept open to permit free flow of gas to the atmosphere Protect openings against entrance of rain snow insects or any other foreign material that may plug the vent or vent line On outdoor installations point the spring case vent downward to allow condensate to drain see Figure 4 This minimizes the possibility of freezing and of water or other foreign materials from entering the vent and interfering with proper operation Under enclosed conditions or indoors escaping gas may accumulate and be an explosion hazard In these cases the vent should be piped away from the regulator to the outdoors 201 and S202 Series regulators have an outlet pressure rating lower than their inlet pressure rating If actual inlet pressure can exceed the outlet pressure rating outlet overpressure protection is necessary However overpressuring AJ4698 A1121 PROTECT VENT PIPE m S I j WITH RAIN CAP NPS 2 DN 50
15. ure that they are not plugged Maximum outlet pressure settings are shown in Table 2 Outlet pressure more than 2 psi 0 14 bar light diaphragm head or 3 psi 0 21 bar heavy diaphragm head above the setpoint may damage internal parts such as the diaphragm head and valve disk The maximum emergency casing outlet pressure is 15 psig 1 0 bar Startup Pressure gauges should always be used to monitor downstream pressure during startup Procedures used in putting this regulator into operation must be planned accordingly if the downstream system is pressurized by another regulator or by a manual bypass If the downstream system is not pressurized by another regulator or manual bypass valve use the following procedure to startup the regulator 1 Check to see that all appliances are turned off 2 Slowly open the upstream block valve 3 Check inlet and outlet pressure for correct values 4 Check all connections for leaks 5 Light the appliance pilots Adjustment The range of allowable pressure settings is stamped on the nameplate If the required setting is not within this range substitute the correct spring as shown in Table 3 If the spring is changed change the nameplate to indicate the new pressure range A pressure gauge should always be used to monitor downstream pressure while adjustments are being made 1 Remove the closing cap key 4 Figure 5 or loosen the hex locknut 2 To increase the outl
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