GE 84000 Brochure

GE Oil & Gas

Masoneilan* Valves

SteamForm*

84000 Series

Steam Conditioning Solutions

84000 Series SteamForm* Valve

GE’s Masoneilan* SteamForm* valve combines 15 years of proven pressure reduction
performance with an advanced, patented desuperheating technology design. Available
with a wide selection of performance enhancing configurations, Masoneilan* valves from
GE offer the optimized solution for virtually every steam conditioning application:

• Thermally Compensated Trim for High Temperature Cycling

• High Performance Spray Nozzles for Accurate Temperature Control

• Multi-Stage Lo-dB* Trim for High Pressure Reduction

• Fast Stroking Speeds for Turbine Bypass Quick Response

• Patented Flow Profiler for Enhanced Desuperheating Performance

21000 Series

Spray Water

Control Valves

Full Range of Options for Spray Water Control

Masoneilan products from GE complement SteamForm* valve
technology with a full line of spray water control valves ranging from the

single-stage pressure control of the 21000 Series valve, through the
high-end, multi-stage LincolnLog* valve solution for anti-cavitation.

Anti-cavitation Control Valves

LincolnLog*

Instrumentation Technology for Improved
Process Yields

GE’s Masoneilan* products provide leading micro-processor based field instrumentation technology that maximizes plant operating
margins by improving process yields, while reducing plant operating and maintenance costs. Award winning HART* communicating
Smart Valve Interface (SVI*) and Fieldbus Valve Positioner (FVP*) digital positioners from GE help users realize improved asset
effectiveness resulting in higher returns on investment. These digital positioners deliver improved process yields through patented tuning
algorithms that optimize valve control performance.

A High Degree of Application Flexibility

Steam conditioning requirements and plant operating practices

vary across every industry. Process plants require steady operation

and precise steam temperature control to improve the performance
of downstream equipment such as paper machines or other

auxiliary equipment. Power plants rely on fast response and low

GE’s Masoneilan* FVP* - Foundation

Fieldbus

TM

Positioner Controller

noise performance to cycle their plants and manage turbine trips.
Each of these environments calls for a specific range of operating
criteria, including inlet and outlet pressures, temperature limits,
thermal cycling of equipment, and operating rangeability.

GE’s Masoneilan* SVI* II AP

Advanced Performance Digital Positioner

2 | GE Oil & Gas

Because the SteamForm* valve has a wide range of options, it’s

compatible with all facets of process steam operation, from noise
control to temperature control, fast opening operation to tight

shutoff, and daily start-stop to smooth continuous control. Each

SteamForm* valve solution is designed to meet specific customer

requirements for steam conditioning, ensuring a proper fit and long-

term success in operating performance.

84000 Series

SteamForm* Valve

SteamForm* Valves

Pressure Reducing Technology

Pressure reduction through a control valve is associated with a release of energy from the steam

in the form of noise and vibration. Eliminating these undesirable effects of pressure reduction is

the primary design objective of the SteamForm* valve. The design of the SteamForm* valve allows
GE to offer a wide range of cost effective solutions, from single stage Lo-dB* trim to multi-stage
management trim. Each individual valve solution is engineered for optimization , addressing specific

applications needs according to severity and customer specifications.

Lo-dB* Technology

Smooth control and process stability are key requirements of many process control applications.

Critical steam applications are found in pulp & paper mills, specialty chemical plants, oil refineries,

and other industries that use a steady steam supply to drive a downstream process. The challenges

of these applications, typically requiring low to moderate pressure drop control, are easily satisfied by

using drilled hole single stage or double stage low noise (Lo-dB*) trim.

Lo-dB* Cage

For more severe pressure drop applications, the SteamForm* valve can be
equipped with a series of diffusers to provide additional stages of pressure

Diffuser

Expanded

Outlet Area

reduction. These higher pressure drop applications typically include an
expanded valve outlet to accommodate the volumetric expansion of the steam.

In addition to reducing noise, the diffuser design also provides a secondary

benefit as it disrupts the flow path of the high energy jet exiting the valve trim.
This flow transition generates lower noise levels in the downstream pipe, and

produces benifical turbulence to assist with desuperheating.

Low Noise, Energy Management Technology

Single Stage Lo-dB* Trim

84000 Series SteamForm* Valve

Single Stage Lo-dB* with Diffuser

Multiple

Diffusers

3-Stage Lo-dB* Trim

Expanding

Outlet

Higher pressure-drop applications, such as the “bypass-to-condenser”

operations found in power plants, may require a more sophisticated degree of

technology to manage high energy levels through the valve. The SteamForm*
valve’s engineered design results in a valve that is optimized for the application.

So, when it has to handle high amounts of energy, the valve body and outlet

are custom-configured to ensure that flow velocities are acceptable through

the entire desuperheating system.

The management of pressure reduction and volumetric expansion required
in high-energy steam flows is often accomplished with the use of multiple
diffusers. This approach creates a series of gradual expansion areas as the
steam transitions to outlet conditions. The additional diffusers create back
pressure, reducing the amount of pressure drop that is taken across the
controlling surfaces of the trim. This minimizes the amount of wear on the

controlling surfaces, which protects the shutoff integrity and further ensures

long- term, accurate control performance.

84000 Series SteamForm* Valve | 3