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Type Y696

2

1. End connections for other than U.S. standard can usually be provided, consult your local Sales Office.

2. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.

M1058

InleT PReSSuRe
OuTleT PReSSuRe
ATMOSPheRIc PReSSuRe

Figure 2. 

Type Y696 Vapor Recovery Operational Schematic

VAPOR RecOVeRY 

VAcuuM SOuRce

lIquID

VAPOR PReSSuRe

Specifications

The Specifications section lists maximum pressures, temperatures and other specifications. Specifications for a 

given regulator as it originally comes from the factory are stamped on the spring case nameplate.

Body Size and end connection Style

(1)

See Table 1

Maximum Allowable Inlet and Outlet Pressure

(2)

15 psig / 1.0 bar

control Pressure Ranges

See Table 2

Pressure Registration

Internal or External

Spring case and Vent connections

1/4 in. NPT

Maximum Temperature capabilities

(2)

nitrile (nBR):

 -20 to 180°F / -29 to 82°C

Fluorocarbon (FKM):

 40 to 300°F / 4 to 149°C

Perfluoroelastomer (FFKM):

 0 to 300°F /  

-18 to 149°C

ethylenepropylene (ePDM):

 -20 to 275°F /  

-29 to 135°C

Summary of Contents for Y696

Page 1: ...rnal registration requiring no downstream control line It is used to sense increase in vessel pressure and vent excessive internal vessel pressure to an appropriate vapor recovery disposal or reclamations system Principle of Operation The Type Y696 is used to maintain a constant inlet blanket pressure with the outlet flowing to a system whose pressure is lower than that at the inlet When vessel pr...

Page 2: ...tions section lists maximum pressures temperatures and other specifications Specifications for a given regulator as it originally comes from the factory are stamped on the spring case nameplate Body Size and End Connection Style 1 See Table 1 Maximum Allowable Inlet and Outlet Pressure 2 15 psig 1 0 bar Control Pressure Ranges See Table 2 Pressure Registration Internal or External Spring Case and ...

Page 3: ...material Apply pipe compound only to the male pipe threads 2 Install the regulator using a straight run of pipe the same size or larger as the regulator body as shown in Figure 2 Flow through the regulator body is indicated by the flow arrow cast on the body If a block valve is required install a full flow valve between the regulator and the blanketed vessel For proper operation the regulator shou...

Page 4: ...ge of allowable pressure settings is stamped on the spring casing nameplate If a pressure setting beyond the stamped range is required install a spring with the desired range by following the procedures for changing the spring and diaphragm in the Maintenance section To adjust the pressure setting perform the following steps key numbers are referenced in Figure 3 1 Remove the closing cap key 3 2 T...

Page 5: ...s to the control spring diaphragm and lever assembly stem All pressure must be released from the diaphragm case assembly before the following steps can be performed To Change the Control Spring 1 Remove the closing cap key 3 and turn the adjusting screw key 2 counterclockwise until all compression is removed from the control spring key 1 2 Remove the adjusting screw key 2 and the upper spring seat...

Page 6: ...pertinent information stamped on the nameplate Specify the complete 11 character part number from the following parts list when ordering replacement parts Parts List In this parts list parts marked NACE are intended for corrosion resistant service as detailed in the NACE International Standards MR0175 and MR0103 Type Y696 Regulator Figure 3 Key Description Part Number 1 Control Spring Plated steel...

Page 7: ...Type Y696 7 Figure 3 Type Y696 Assembly Section A A 43B0679 29 50 51 56 75 21 22 6 7 8 9 20 13 11 19 17 16 28 27 47 46 14 41 40 5 24 4 3 2 35 1 30 23 25 38 A A ...

Page 8: ...res 28008 France Tel 33 2 37 33 47 00 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 TESCOM Emerson Process Management Tescom Corporation USA Headquarters Elk River Minnesota 55330 2445 USA Tels 1 763 241 3238 1 800 447 1250 Europe Selmsdorf 23923 Germany Tel 49 38823 31 287 Asia Pacific Shanghai 201206 China Tel 86 21 2892 9499 For further information visit www fisherregulato...

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