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Emerson Fisher OS2 Instruction Manual

Slam-shut device
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Instruction Manual
D102778X012
April 2018
Type OS2 Slam-Shut Device
Warning
!
Failure to follow these instructions or to
properly install and maintain this equipment
could result in an explosion and/or fire
causing property damage and personal injury
or death.
Fisher™ slam-shut devices 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.
if the slam-shut device 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 slam-shut devices.
introduction
Scope of the Manual
This instruction manual provides installation, maintenance
and parts ordering information for the Types OS2 and OSD2
slam-shut devices. The Type OS2 slam-shut device is used
on Type OSE with NPS 1 through 6 / DN 25 through 150
body sizes, while Type OSD2 is used on NPS 8 and 10 /
DN 200 and 250 body sizes.
For more information on Type OS2 installed on other
regulators such as Types EZHOSX, EZHSO-OSX,
EZLOSX and EZROSX, refer to the instruction manuals of
these products.
Description
Slam-shut devices are used to totally and rapidly cut off
gas flow when the inlet and/or outlet pressure in the system
either exceeds or drops below the setpoints. The Type OSE
consists of a valve, mechanism box (BM1 or BM2) and either
one or two modular sensing elements called manometric
devices (Type BMS1 or BMS2) (see Figure 2). All information
for the Type OSE (which includes a Type OS2 slam-shut
device and a Type E valve body) is contained in this
Instruction Manual.
TyPE E
VaLVE
BODy
W8133
TyPE OSE
TyPE EZr
rEgULaTOr
W8136
TyPE EZrOSX
Figure 1. Type OS2 Slam-Shut Device on
Types OSE and EZROSX Constructions
Type OS2
TyPE OS2
SLaM-SHUT
DEViCE
TyPE OS2
SLaM-SHUT
DEViCE
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Summary of Contents for Emerson Fisher OS2

  • Page 1 Fisher™ slam-shut devices 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. TyPE E if the slam-shut device vents gas or a leak...

  • Page 2: Specifications

    Type OS2 Specifications This section lists the specifications for the Type OS2 slam-shut valve. Factory specifications are stamped on the nameplate fastened on the valve at the factory. Body Sizes and End Connection Styles Process Temperature Capabilities Type OSE -22 to 180°F / -30 to 82°C WCC Steel accuracy 1 and 2 NPT;...
  • Page 3 Type OS2 TyPE BMS2 (LEFT SiDE) TyPE BMS1 TyPE OS2 TyPE BMS1 (rigHT SiDE) E0564 E0565 MECHaniSM BOX (BM1) WiTH 1 ManOMETriC MECHaniSM BOX (BM2) WiTH 2 ManOMETriC SEnSing DEViCES SEnSing DEViCE (TyPE BMS1) (TyPES BMS1 anD BMS2) TOP-MOUnTED (STanD-aLOnE TyPE OSE VaLVE) Figure 2.
  • Page 4 Type OS2 Table 2. Spring Ranges, Part Numbers and Maximum and Minimum Pressures for the Manometric Sensing Devices (Types BMS1 and BMS2) MaXiMUM DiFFErEnCE MaXiMUM ManOMETriC ManOMETriC SETPOinT BETWEEn SPring SPring ParT SEnSing inLET SPring rangE SEnSing SEnSing TOLEranCE, OVErPrESSUrE anD COLOr nUMBEr PrESSUrE,...
  • Page 5 Type OS2 TyPE TyPE Sa/2 EQUaLiZEr ByPaSS ManOMETriC DEViCE STEM ManOMETriC DEViCE VaLVE PLUg COURSE CLAPET COURSE CLAPET VaLVE PLUg DiSK EVENT MECHaniSM BOX E0939 inLET PrESSUrE OUTLET PrESSUrE EVENT aTMOSPHEriC PrESSUrE LOaDing PrESSUrE PiLOT SUPPLy PrESSUrE TyPE EZHOSX ManOMETriC DEViCE STEM E0559 inLET PrESSUrE E0558...
  • Page 6 Type OS2 DOWnSTrEaM SEnSing LinE DOWnSTrEaM SEnSing LinE UPSTrEaM BLOCK VaLVE OPTiOnaL STrainEr OPTiOnaL STrainEr UPSTrEaM BLOCK BLOCK BLOCK VaLVE VaLVE VaLVE TyPE OSE SLaM-SHUT VaLVE TyPE OSE PrESSUrE PrESSUrE SLaM-SHUT VaLVE rEgULaTOr rEgULaTOr E0560 E0561 OVErPrESSUrE anD UnDErPrESSUrE SHUTOFF MiniMUM/MaXiMUM UPSTrEaM anD USing OnE ManOMETriC DEViCE DOWnSTrEaM PrESSUrE...
  • Page 7 Type OS2 Table 3. Main Valve Body Sizes, End Connection Styles and Body Pressure Ratings Main VaLVE BODy SiZE STrUCTUraL DESign raTing Main VaLVE BODy MaTEriaL EnD COnnECTiOn STyLE psig 27.6 CL125 FF 13.8 Cast iron CL250 RF 34.5 1500 CL150 RF 20.0 WCC Steel...
  • Page 8 Type OS2 adjustment aDJUSTing SCrEW LOCKnUT TriPPing HOOK Typically, adjustments are carried out with the slam-shut Pin D2 valve closed. Only the detection stage is reset (see Figure 7 THrEaDED STEM and the section on Resetting the Tripping Mechanism). TriPPing PLaTE Follow the procedures below for setpoint adjustment and use the resetting tool (see Figure 8) to move the adjusting screw.
  • Page 9 Type OS2 adjusting the Overpressure Trip Point: PUSH BUTTOn LOCKnUT aDJUSTing SCrEW Same procedure as overpressure shutoff only. PUSH BUTTOn Pin D2 THrEaDED adjusting the Underpressure Trip Point: TriPPing STEM PLaTE 1. Pressurize the Type BMS1 to a pressure between the desired overpressure and underpressure trip points.
  • Page 10 Type OS2 RESET PIN WITH WHITE DOT SECOND STAGE RELEASING SHAFT TRAVEL STOP SLIDING TRAVEL STOP CLEVIS VALVE OPEN VALVE CLOSED E0611 E0612 SLAM-SHUT VALVE OPEN SLAM-SHUT VALVE CLOSED RESETTING TOOL STEP A TRAVEL STOP TRAVEL STOP STEP B VALVE OPEN VALVE CLOSED E0613 E0614...

  • Page 11: Maintenance

    Type OS2 6. Verify that the trip pressure is equal to the desired When movement is started on the stem, the internal bypass pressure setting by increasing pressure to the in sizes from NPS 1 through 6 / DN 25 through 150 will open Type BMS2, resetting the detection stage and then and equalize the pressure on each side of the valve plug reducing pressure to the Type BMS2 until the detection...
  • Page 12 Type OS2 Mechanism Box (BM1 or BM2) 4. Remove the two cap screws (key 39) holding the mechanism box (key 16) to the bonnet (key 15) and remove the mechanism box. Disassembly for NPS 1 through 6 / DN 25 through 150 Body Sizes (Refer to Figure 14) 5.
  • Page 13 Type OS2 LOCaTiOn FOr SWiTCH (KEy 27) rESET Pin WiTH WHiTE DOT MECHaniSM BOX (BM, KEy 16) TriPPing PLaTE ManOMETriC SEnSing DEViCE (TyPE BMS1, KEy 17) CLiP ManOMETriC DEViCE THrEaDED STEM SLiDing CLEViS SECOnD STagE rELEaSing SHaFT TraVEL STOP rESETTing TOOL STEM (KEy 3) CaP SCrEW...
  • Page 14 Type OS2 COUPLing COUPLing HEaD HOLES FOr SPannEr COUPLing WrEnCH HEaD VaLVE PLUg EQUaLiZEr ByPaSS (KEy 5H) (KEy 5a) EQUaLiZEr rOLL PinS ByPaSS (KEy 5a) PLUg O-ring VaLVE PLUg DiSK (KEy 32) W6853_1 W6855 Figure 9. Equalizer Bypass and Coupling Assembly for Figure 10.

  • Page 15: Parts Ordering

    Type OS2 SAFETY MANOMETRIC BOX (BMS) BASE SAFETY MANOMETRIC BOX 1 (TYPE BMS 1) “HOOK” KIT SAFETY MANOMETRIC BOX 2 (YPE BMS 2) “HOOK” KIT DiaPHragM, PiSTOn, BELLOWS, TyPES 162 anD 71 TyPES 27 anD 17 TyPES 236 anD 315 Figure 11.

  • Page 16: Parts List

    Type OS2 Parts List Description Part number Description Part number Parts kit (includes keys 7, 10, 11, 32 and 34) Valve Body Assembly (continued) NPS 1 / DN 25 FA197123X12 (For NPS 1 through 6 / DN 25 through 150 only) NPS 2 / DN 50 FA197130X12 (Body, Seat ring and Seat O-ring) (continued)
  • Page 17 Type OS2 Description Part number Description Part number Plug and Bypass Assembly Valve Assembly NPS 1 / DN 25 FA181114T12 NPS 8 / DN 200 FA181259X12 NPS 2 / DN 50 FA181115T12 NPS 10 / DN 250 FA181260X12 NPS 3 / DN 80 FA181116T12 Cylinder, Guide NPS 4 / DN 100...

  • Page 18: Mechanical Connections

    Type OS2 C1 COnTaCT VErSiOn—EXPLOSiOn PrOOF COnnECTiOn WiTH CaBLE anD TigHT-SHUT PaCKing gLanD Maximum Current 7.0A 0.8A Maximum Voltage 400V 250V Protection EEx-d IIC T6 Tightness IP 66 Temperature -20 to 160°F / -29 to 71°C Fastening 2 M3 screws Cable 3 wires (Black, Blue, Brown) H05VVF (0.118 x 0.3 in.
  • Page 19 Type OS2 E0604 TraVEL STOP nPS 1 THrOUgH 6 / Dn 25 THrOUgH 150 nPS 8 anD 10 / Dn 200 anD 250 Figure 12. Mechanism Box (BM1) with 1 Manometric Sensing Device (Type BMS1)
  • Page 20 Type OS2 E0605 nPS 1 THrOUgH 6 / Dn 25 THrOUgH 150 nPS 8 anD 10 / Dn 200 anD 250 Figure 13. Mechanism Box (BM2) with 2 Manometric Sensing Devices (Type BMS2)
  • Page 21 Type OS2 DETaiL OF nPS 1 / DETaiL OF Dn 25 BODy nPS 2 anD 3 / Dn 50 anD 80 BODiES E0602 E0603 VaLVE PLUg VaLVE PLUg SHOWn SHOWn DETaiL arEa OPEn CLOSED E0601 nPS 4 anD 6 / Dn 100 anD 150 BODiES Figure 14.
  • Page 22 Type OS2 DETaiL OF nPS 10 / Dn 250 BODy Figure 15. Type OSE Slam-Shut Valve Assembly for NPS 8 and 10 / DN 200 and 250 Body Sizes...
  • Page 23 Type OS2 E0600 Figure 16. Small Stem Bushing Detail LOCaTiOn OF COnTaCT SWiTCH Wiring KEy 27 nF—nOrMaLLy CLOSED nO—nOrMaLLy OPEn nF—BK/BU E0615 nO—BK/Bn Figure 17. Optional Contact Limit Switch...
  • Page 24 Technologies, Inc. All rights reserved. 04/18. Emerson Automation Solutions 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 International LLC, a...

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