Baker Hughes Consolidated 1811 Series User Manual (English)

Questions and Answers:

K
Kevin GeorgeAug 4, 2025
What to do if Baker Hughes Consolidated 1811 Control Unit valve is leaking?
- B
  Brian HickmanAug 4, 2025
  If your Baker Hughes Control Unit valve is leaking or exhibiting erratic popping actions, it could be due to several reasons. The seat might be damaged, requiring disassembly, lapping of seating surfaces, or disc replacement. Part misalignment could also be the cause; in this case, disassemble the valve and inspect the contact area of the disc and seat bushing, lower spring washer or spindle, compression screw, and spindle straightness. Operating too close to set pressure can also cause this issue, so lower the operating pressure or retrofit to a Thermodisc design. Finally, check if the discharge stack is binding on the valve outlet and correct the source of binding if necessary.
B
bradshawsteveAug 9, 2025
What to do if Baker Hughes Control Unit valve does not close completely?
- K
  Krystal WhiteAug 9, 2025
  If your Baker Hughes Control Unit experiences a hang-up, or the valve doesn't close completely, it could be due to several reasons. The lower ring might be positioned too high; if so, move the lower ring to the left one notch per adjustment and test until the problem is eliminated. Foreign material could also be the cause, requiring disassembly of the valve to correct any abnormal condition and inspection of the system for cleanliness. Also, verify proper clearance, as improper disc/guide clearance may be the reason.
N
Nicholas MontgomeryAug 14, 2025
Why Baker Hughes Consolidated 1811 Control Unit fails to open at set pressure?
- J
  Jay LittleAug 15, 2025
  If the Baker Hughes Control Unit fails to open at the set pressure, or simmers, it might be due to an improper compression screw adjustment, so adjust the set pressure. Another possible cause is a lower ring positioned too low, in which case you should raise the lower adjusting ring. Also, steam line vibrations can cause this issue; investigate and correct the cause.
M
megan17Aug 19, 2025
Why Baker Hughes Control Unit has chatter or short blowdown?
- S
  stevenpopeAug 19, 2025
  If the Baker Hughes Control Unit experiences chatter or short blowdown, it could be due to several reasons. The upper ring might be positioned too high, so lower the upper adjusting ring. Excessive inlet piping pressure drop can also cause this issue, so reduce the inlet pressure drop to less than one-half of the required valve blowdown by redesigning the inlet piping. Finally, verify valve sizing, as the valve size may be improper for the application.
T
Tina EvansAug 25, 2025
How to fix Baker Hughes Control Unit valve that does not go into full lift?
- U
  ugoodwinAug 25, 2025
  If the Baker Hughes Control Unit valve does not go into full lift, it could be due to the upper ring being positioned too high, so lower the upper adjusting ring. Alternatively, foreign material may be trapped between the disc holder and guide. Disassemble the valve and correct any abnormality, and inspect the system for cleanliness.
M
Mary RichAug 29, 2025
Why Baker Hughes Consolidated 1811 Control Unit has excessive blowdown?
- E
  Erin SmithAug 29, 2025
  If the Baker Hughes Control Unit experiences excessive blowdown, it could be because the upper ring is positioned too low; in this case, raise the upper adjusting ring. Another potential cause is built-up back pressure that is excessive; decrease the exhaust pressure by increasing the discharge stack area.

Baker Hughes Consolidated 1811 Series Specifications

General

Brand	Baker Hughes
Model	Consolidated 1811 Series
Category	Control Unit
Language	English

Summary

Product Safety Sign and Label System

Safety Sign Panel Description

Describes the purpose and content of the three panels in safety signs.

Safety Alerts

Key Safety Precautions

Lists critical safety precautions for valve operation and maintenance.

Safety Notice

Importance of Procedural Adherence

Emphasizes following instructions to minimize risks and prevent product damage.

Warranty Information

Warranty Terms and Conditions

Outlines Baker Hughes's warranty statement, limitations, and conditions for service.

Valve Terminology for Safety Valves

Essential Valve Terminology

Defines key terms and components related to safety valves as per ASME PTC 25.

Storage and Handling Prior to Installation

Safe Storage and Handling Guidelines

Provides guidelines for storing and handling safety valves to prevent damage.

Introduction

Safety Valve Functionality

Explains the fundamental role of a safety valve as a safeguard against over-pressure.

Consolidated Safety Valve Type 1811

1811 Series Valve Components

Lists all parts of the 1811 safety valve with their corresponding numbers and nomenclature.

Recommended Installation Practices

General Installation Requirements

Details general requirements for connecting the safety valve to the boiler and piping.

Outdoor Installation Guidance

Provides guidance for installing safety valves in outdoor environments.

Disassembly of 1811 Series Safety Valve

Step-by-Step Disassembly Procedure

Provides a step-by-step procedure for safely disassembling the 1811 series safety valve.

Maintenance Instructions

General Maintenance Information

Outlines general maintenance aspects like disassembly, cleaning, inspection, and reassembly.

Machining Valve Components

Details machining techniques for valve parts like seat bushing and disc.

Lapping Seat Surfaces

Explains the procedure for lapping seat bushing and disc surfaces for reconditioning.

Ring Lap Reconditioning

Describes how to recondition a ring lap used for lapping valve components.

Spindle Runout Measurement

Details how to check and correct spindle runout using critical dimensions.

Spring and Washer Inspection

Provides criteria for inspecting and replacing springs and spring washers.

Inspection and Part Replacement

General Inspection Guidelines

Covers general principles for inspecting parts after disassembly.

Specific Inspection Steps

Provides specific steps for inspecting the guide and disc for wear or damage.

Thermodisc Machining and Replacement

Details machining dimensions and replacement criteria for Thermodisc components.

Disc-to-Guide Clearance Check

Details how to measure disc and guide clearance and its implications for valve performance.

Adjusting Ring Inspection Criteria

Explains inspection and replacement criteria for adjusting rings due to damage or thread issues.

Seat Bushing Machining and Lapping

Covers machining and lapping of the seat bushing to maintain flatness and prevent damage.

Reassembly of 1811 Series Safety Valve

Critical Reassembly Factors

Highlights alignment, cleanliness, and lubrication as critical for reassembly.

Setting and Testing

Steam Testing Procedure

Outlines the step-by-step process for testing safety valve set pressure using steam.

Adjusting for Lift and Blowdown

Details adjustments for valve lift, hang-up, blowdown, and reseating pressure.

Hydrostatic Testing and Gagging

Explains the process of hydrostatic testing and the use of gags to protect safety valves.

Test Gag Application

Provides specific instructions on how to apply test gags safely for hydrostatic testing.

Preset Adjusting Ring Positions

Guides on positioning adjusting rings based on orifice size before final testing.

Electronic Valve Testing (EVT)

Describes the use of Electronic Valve Tester for verifying set pressure and its accuracy.

Trouble Shooting The 1811 Valves

Troubleshooting Common Valve Issues

Provides a table of common valve problems, their possible causes, and corrective actions.

Maintenance Tools and Supplies

List of Tools and Supplies

Lists recommended tools, ring laps, lapping compounds, and lubricants for maintenance.

Replacement Parts Planning

Identifying and Ordering Parts

Explains how to identify the valve and specify parts for ordering service parts.

Consolidated Genuine Parts

Genuine Parts Benefits

Highlights the benefits of using Baker Hughes designed and guaranteed parts.

Recommended Spare Parts

Spare Parts Recommendation List

Provides a list of recommended spare parts with their part numbers and quantities.

Manufacturer's Field Service, Repair and Training Program

Field Service Support

Details Baker Hughes's field service capabilities and recommendations for initial setting.

Repair Facility Services

Describes the specialized repair capabilities of Baker Hughes's repair department.

Maintenance Training Programs

Outlines service seminars offered for maintenance and engineering personnel.

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Baker Hughes Consolidated 1811 Series User Manual

Table of Contents