GE 21000 Fact Sheet

GE Oil & Gas

Masoneilan* 21000 Series
Control Valves

The 21000 Series single ported unbalanced trim, heavy top
guided control valves are designed with built in versatility
making them well-suited to handle a wide variety of process
applications. Standard features include:

Top Guided

Rugged, heavy top plug guiding provides maximum support to
ensure plug stability.

Single and Double Stage
Lo-dB*/Anti-cavitation Trim

Replacing the conventional plug with the Lo-dB/Anti-cavitation
design provides excellent noise attenuation or cavitation control.

Reduced Capacity and Low Flow Trim

A series of reduced area trim is available to provide wide flow
range capabilities in all valve sizes. Optional trim to meet low
flow requirements is also available.

fact sheet

Trim Type

Standard construction offers either a quick change or threaded
seat ring. This trim is unbalanced and uses no seals or pilots.

Environmental Packing

Low emission LE* Packing is available to assure compliance with
latest environmental regulations.

Emissions Free

Bellows seal design option is available to meet zero emissions
requirements.

NACE Compliance

The 21000 Series is available for Sour Service Applications using
design and construction methods in accordance with NACE
Standard MR 0103. Applications requiring compliance to MR
0175, 2003 Rev or IS0 15156 require engineering review.

High Pressure Capability

A variety of actuators are available to handle low to high pressure
drop requirements. Allowable pressure drops for specific leakage
classes can be calculated using the Masoneilan ValSpeQ* Sizing
and Selection Program.

Tight Shutoff

Class IV leakage is standard. Optional constructions meet IEC
534-60534-4 and ANSI/FCI 70.2 Class V and VI.

Hardened Trim

Provided as standard to handle high pressure drop applications.

Specifications

fact sheet

Flow Direction

contoured: flow-to-open/flow-to-close
Lo-dB: flow-to-open
anti-cavitation: flow-to-close

Body

type: high capacity globe
high capacity angle

Bonnet

type: bolted standard
bolted extension
bolted cryogenic

Body and Bonnet

materials: carbon steel
316 stainless steel
chrome-molybdenum steel
others

LodB Trim Designs

Trim

plug type: contoured
soft seat
Lo-dB (1 or 2 stages)
anti-cavitation (1 or 2 stages)
seat ring: threaded
quick change
guide: heavy top guided
capacity: full area
reduced capacity in all sizes
CV ratio: 50:1
flow
characteristic: linear
equal percentage
modified percent

Actuator

type: spring diaphragm
handwheel: optional

The optional Lo-dB trim designs offer single-stage and double-stage noise attenuation benefits. Noise reduction levels of up to 25 dBA
are possible, depending on the specific operating conditions.

Single-stage trim Double-stage trim

* Masoneilan, LodB, and SVI are trademarks of the General Electric Company.
© 2014 General Electric Company. All rights reserved.

Other company names and product names used in this document are the
registered trademarks or trademarks of their respective owners.

GEA31096 03/2014