Instruction manual

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CS400 Series

D103120X012

Instruction Manual

Form 5833

October 2014

www.fisherregulators.com

CS400 Series Commercial / Industrial

Pressure Reducing Regulators

Table of Contents

Introduction ...............................................................1

Specications ............................................................3

Principle of Operation ...............................................7

Installation and Overpressure Protection ..................8

Startup .................................................................... 11

Adjustment .............................................................. 11

Shutdown ................................................................ 12

Maintenance and Inspection ...................................13

Parts Ordering ........................................................14

Parts List ................................................................. 14

Figure 1. Typical CS400 Pressure Reducing Regulators

Introduction

Scope of the Manual

This Instruction Manual provides installation,

maintenance and parts ordering information for the

CS400 Series regulators. Instructions and parts lists for

other equipment mentioned in this Instruction Manual are

found in separate manuals.

TYPICAL TYPE CS400 REGULATOR

TYPICAL TYPE CS403 REGULATOR WITH INTEGRAL

TRUE-MONITOR™ REGULATOR

TYPICAL TYPE CS404 REGULATOR WITH INTEGRAL

TYPE VSX4 SLAM-SHUT MODULE

P1426

P1190

P1424

Summary of content (20 pages)

PAGE 1
CS400 Series Instruction Manual Form 5833 October 2014 CS400 Series Commercial / Industrial Pressure Reducing Regulators P1190 TYPICAL TYPE CS400 REGULATOR P1426 P1424 TYPICAL TYPE CS403 REGULATOR WITH INTEGRAL TRUE-MONITOR™ REGULATOR TYPICAL TYPE CS404 REGULATOR WITH INTEGRAL TYPE VSX4 SLAM-SHUT MODULE Figure 1. Typical CS400 Pressure Reducing Regulators Table of Contents Introduction Introduction................................................................1 Specifications...................
PAGE 2
CS400 Series Table 1.
PAGE 3
CS400 Series Specifications The Specifications section on the following page lists the specifications for the CS400 Series 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.
PAGE 4
CS400 Series relief valve sPRING relief valve stem relief sPRING relief seat Pressure Retaining PLUG (DO NOt REMOVE WHILE UNIT IS PRESSURIZED) M1060 INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE Figure 2. Type CS400IR Internally Registered Regulator with Internal Relief Operational Schematic Table 4.
PAGE 5
CS400 Series Table 6. Type CS403 Regulator and Integral Monitor Outlet Pressure Ranges PRIMARY REGULATOR Setpoint Spring Part Number In. w.c. mbar 4 10 GE30198X012 5 12 GE30195X012 7 17 GE30188X012 11 27 GE30189X012 14 35 GE30224X012 18 45 GE30196X012 1 psig 69 GE30225X012 2 psig 138 GE30190X012 3 psig 207 GE30197X012 4 psig 276 GE30197X012 5 psig 345 GE30197X012 tYPE CS403 INTEGRAL MONITOR Spring Range Spring Part Number In. w.c. mbar Setpoint(1) In. w.c.
PAGE 6
CS400 Series MONITOR CONTROL SPRING MONITOR ADJUSTING SCREW VALVE STEM ADJUSTING SCREW CONTROL SPRING GUIDED STEM MONITOR DISk RELIEF VALVE SPRING OPENING SPRING VALVE Disk MONITOR LEVER EXTERNAL CONTROL line PLUG EXTERNAL CONTROL LINE PLUG (DO NOt REMOVE WHILE UNIT IS PRESSURIZED) LEVER MONITOR ORIFICE PUSHER POST ASSEMBLY oRIFICE INTEGRAL MONITOR Primary Regulator M1061 Figure 3.
PAGE 7
CS400 Series Principle of Operation Type CS400 Base Regulator 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 regulator 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.
PAGE 8
CS400 Series protect vent pipe with rain cap CS400 SERIES regulator NPS 2 / dn 50 type 289h relief valve Regulator Vent Pointed Downward Figure 5.
PAGE 9
CS400 Series caution The CS400 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 any portion of the regulators beyond the limits in Specifications section may cause leakage, damage to regulator parts or personal injury due to bursting of pressure-containing parts.
PAGE 10
CS400 Series primary regulator Upstream Block Valve 20 in. / 508 mm downstream Block Valve CS400 Series December 2008 M1062 Type CS404ET with Slam-Shut Module, External Pressure Registration, and Token Relief integral monitor Figure 6. Type CS403 Downstream Control Line Connection Primary REgulator upstream block valve 20 in. / 508 mm downstream block valve M1063 INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE slam shut Figure 7.
PAGE 11
CS400 Series Downstream Control Line Installation with Integral Monitor Refer to Figure 6. When installing the Types CS403ET and CS403EN regulators, connect downstream control line tubing to the lower casing of the Primary Regulator and run the tubing approximately 20 in. / 508 mm downstream. Connect a second, separate downstream control line tubing to the lower casing of the Integral Monitor and run the tubing approximately 20 in. / 508 mm downstream.
PAGE 12
CS400 Series 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 5). If the spring is changed, change the nameplate to indicate the new pressure range. of the regulator and/or slam-shut device. Due to these factors additional protections should be installed to stop flow in the event of a line break.
PAGE 13
CS400 Series 1. Open valves downstream of the regulator. 2. Slowly close the upstream shut-off valve. 3. Inlet pressure will automatically be released downstream as the regulator opens in response to the lowered pressure on the diaphragm. Maintenance and Inspection ! Warning 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”.
PAGE 14
CS400 Series Change to a new part when reassembling the regulator. Coat the threads of the replacement orifice with a good quality lubricant. (If the orifice is being replaced with a different size, update the nameplate to state the new size and maximum inlet pressure). 5. Reassemble the regulator in reverse order of the above steps.
PAGE 15
CS400 Series Key Description Part Number Key Description Part Number 53 Pusher Post Pin, Stainless steel GE29761X012 70 54 Roller Pin, Brass GE27060X012 Steel 55* Diaphragm Head Assembly, Steel/Nitrile (NBR) GE31248X012 1-1/4 NPT GE26465X022 55a Diaphragm ----------- 1-1/2 NPT GE26466X022 55b Diaphragm Head ----------- Rp 1-1/4 GE26469X022 56 Retaining Ring, Pusher Post Pin, Steel GE33772X012 Rp 1-1/2 GE26470X022 57 Slotted Spring Pin,
PAGE 16
CS400 Series 38 55 L1 L2 L1 L1 62 60 65 L1 100 96 torque: 15 to 30 in. LBS / 1.7 to 3.4 N•m 4 19 6 L2 5 7 20 37 L2 28 S 72 L1 95 8 torque: 15 to 30 in. LBS / 1.7 to 3.4 N•m 25 51 torque: 35 to 45 ft-lbs / 47 to 61 n•m L2 27 36 21 18 11 13 14 10 torque: 15 to 30 in. Lbs / 1.7 to 3.4 N•m L2 MAIN VALVE ERAA03738 apply lubricant (L) / sealanT (S)(1): L1 = ANTI-SEIZE LUBRICANT l2 = Silicone grease S = THREAD SEALANT 1.
PAGE 17
CS400 Series 70 71 torque: 10 to 13 ft-lbs / 14 to 18 N•m 2 17 3 15 torque: 63 to 90 IN. lbs / 7 to 10 N•m 1 9 16 ERAA03738 Figure 8. CS400 Series Regulator Assemblies (continued) torque: 50 to 70 in. lbs / 5.6 to 7.9 N•m 44 47 55A 41 A 55B 43 55B token relief 45 53 51 56 57 standard relief 56 57 ERAA03738 41 53 51 53 42 54 43 44 58 55A 54 torque: 50 to 70 in. LBS / 5.6 to 7.9 N•m torque: 50 to 70 in. lbs / 5.6 to 7.
PAGE 18
CS400 Series B A TORQUE: 15 TO 30 IN. lbs / 1.7 TO 3.4 N•m L2 12 24 23 L2 20 ERAA03738 20 11 11 external registration internal registration Figure 10. CS400 Series Registration Options torque: 35 to 45 ft-lbs / 47 to 61 N•m L2 26 L2 L2 27 70 27 L1 25 true-monitor assembly ORIFICE AND TRUE-MONITORTM ASSEMBLY Apply LUBRICANT (L) : L1 = ANTI-SEIZE LUBRICANT l2 = Silicone grease (1) 1. Lubricants must be selected such that they meet the temperature requirements. Figure 11.
PAGE 19
CS400 Series torque: 35 to 45 ft-lbs / 47 to 61 N•m L1 L2 26 27 70 L2 L1 27 25 torque: 35 to 45 ft-LBS / 47 to 61 N•m 101 slam-shut assembly ORIFICE AND SLAM-SHUT ASSEMBLY Figure 11. CS400 Series Slam shut and Integral Monitor Modules (continued) 72 80 70 S torque: 10 to 13 ft-LBS / 14 to 18 N•m gray cast iron 74 76 77 75 L2 L2 70 ductile iron or steel apply lubricant (L) / sealanT (S)(1): L1 = ANTI-SEIZE LUBRICANT l2 = Silicone grease S = THREAD SEALANT 1.
PAGE 20
CS400 Series Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75070 USA Tel: +1 800 558 5853 Outside U.S. +1 972 548 3574 USA - Headquarters McKinney, Texas 75070 USA Tel: +1 800 558 5853 Outside U.S.