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Pressure Regulators with Type SP/P Safety Pilot

Emerson Automation Solutions

Americas 

McKinney, Texas 75070 USA 

T   +1 800 558 5853 

+1 972 548 3574

Europe 

Bologna 40013, Italy 

T  +39 051 419 0611

Asia Pacific

 

Singapore 128461, Singapore 

T  +65 6777 8211

Middle East and Africa 

Dubai, United Arab Emirates 

T  +971 4 811 8100

SpenceValve.com

SIOI58 

SIOI42B

Figure 2.

 Pressure Safety Pilot Assembly

1/4 NPT

1/8 NPT

1/8 NPT

SERIAL 

NUMBER 

PLATE

VCIMD-16112 © 2021 Emerson Electric Co. All rights reserved. 11/21  

Spence is a mark owned by one of the companies in the Emerson Automation 

Solutions business unit of Emerson Electric Co. The Emerson logo is a 

trademark and service mark of Emerson Electric Co. All other marks are 

property of their prospective owners.
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. All sales are 

governed by our terms and conditions, which are available upon request. We 

reserve the right to modify or improve the designs or specifications of such 

products at any time without notice.
Emerson Electric Co. does not assume responsibility for the selection, use 

or maintenance of any product. Responsibility for proper selection, use 

and maintenance of any Emerson Electric Co. product remains solely with 

the purchaser.

Summary of Contents for SP

Page 1: ...ment could result property damage and personal injury or death Regulator with Type SP P Pressure Safety Pilot must be installed operated and maintained in accordance with federal state and local codes rules and regulations and Emerson Process Management Regulator Technologies Inc Emerson instructions If the regulator vents gas or a leak develops in the system service to the unit may be required Fa...

Page 2: ... Pressure 1 Bronze 300 psig 20 7 bar Steel 600 psig 41 4 bar Pressure Ranges 1 5 to 13 psig 0 35 to 0 90 bar 13 to 30 psig 0 90 to 2 07 bar 31 to 65 psig 2 14 to 4 48 bar 66 to 120 psig 4 55 to 8 27 bar 121 to 175 psig 8 35 to 12 1 bar Construction Materials Bronze and Cast steel 1 The pressure temperature limits in this Instruction Manual and any applicable standard or code limitation should not ...

Page 3: ...st entrance of rain snow insects or any other foreign material that may plug the spring case vent or vent line Type E Main Valve The Type E Main Valve is pilot operated normally closed single seat design featuring packless construction balanced metal diaphragms and protected main spring One or more pilot regulators are mounted to Type E main valve to fit with the specifications defined by the pres...

Page 4: ...t cowl assembly key 20 so that pressure plate key 2 is flush with gage 4 Lock setting by turning barrel locknut key 9 down on bonnet key 11 Tighten barrel lock set screw key 21 Maintenance WARNING To avoid personal injury property damage or equipment damage caused by sudden release of pressure or explosion of accumulated gas do not attempt any maintenance or disassembly without first isolating the...

Page 5: ...re pinched by the valve 7 Tighten hood working back and forth on opposite bolts Do not start on one bolt and work around the circle or you will probably have a leak Safety Pilot 1 Remove the blind flange and using a 15 16 in 23 8 mm long socket remove the seat and disk assembly 2 Remove the stem nuts then clean all parts 3 Lap disk to seat and stem shoulder with fine grinding compound and reassemb...

Page 6: ... Regulator Fails to Close Delivery Pressure Builds Up Too High 1 If there is a bypass valve make sure that it is not leaking 2 Try lowering the delivery pressure by changing the pilot setting 3 Close the stop valves and remove both tubing bends and inspect both the bleedport and restriction ell to make sure they are not obstructed Remove all compression from the pilot adjusting spring and then cra...

Page 7: ... 9 Barrel Locknut Steel WAL4 02910 0 10 B ellows Assembly Broze WAL4 00010 0 Stainless Steel WAL4 00011 0 11 B onnet Bronze WAL4 00979 0 Steel WAL4 00980 0 12 Blind Flange and Bonnet Bolts Steel WAL5 04803 0 13 B ody Bronze WAL4 00856 0 Steel WAL4 00857 0 14 B lind Flange Bronze WAL4 02153 0 Steel WAL4 02152 0 15 Diaphragm 1 2 Stainless steel WAL4 01626 0 16 Hood Iron WAL4 02563 0 17 Cowl Iron WAL...

Page 8: ...merson Electric Co The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are property of their prospective owners 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 ...

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