Valves used in the chemical sector

The Masoneilan 72000 Series is a fabricated angle valve for precise capacity control while efficiently reducing noise and outlet velocities using single or multiple cages in high capacity and high-pressure letdown gas applications. 

The flexibility of a fabricated valve body enables custom-engineered solutions, including large differences between the inlet and outlet sizes to handle downstream gas expansion and noise attenuation. The Masoneilan Lo-dB low noise trim and V-LOG Energy Management Trim are available for noise and vibration control in severe high expansion ratio applications. Benefits include: 

• Flexibility allows for customized solutions for high mass flow applications.
• Field-proven technologies offer efficient process control and noise attenuation.
• Support for customized flow characteristics and the use of expanded outlets enhances operational performance.
• Masoneilan Lo-dB trim and V-LOG Energy Management Trim offer efficient process control and improved noise reduction capabilities.

The Masoneilan 72000 Series valve is for high capacity, high-pressure letdown applications including:

• Compressor anti-surge.
• Gas-to-flare to atmosphere.
• Other venting applications.

Sizes:
6” x 8” through 36” x 48”
(150 x 200 through 900 x 1200 mm)

Ratings and Connections:

• Flanged: ANSI 150 – 600
  UNI-DIN 10 – 100
  up to 600 mm
• Welded: BW

Body Materials:

• Carbon steel
• Stainless steel
• Chrome-moly

Actuator:
Model 51/52/53 piston cylinder

Trims:

• Balanced cage guided trim
  (single or double cage)
• Lo-dB and V-LOG trims available

Inherent Characteristic:
Linear or equal percentage

The 49000 Series V-LOG high pressure drop valve features an enlarged body gallery to accommodate gas expansion and up to 36 stages of pressure reduction via a stacked disk trim design. It offers optimized severe service solutions for high-pressure drop applications with potential damaging noise or cavitating fluid conditions. Built around the Masoneilan V-LOG Energy Management Trim, the 49000 Series is capable of handling a wide range of both liquid and gas services in a variety of process industries.

Benefits of the 49000 Series V-LOG high pressure drop valve include: 

• Compared to forged or fabricated bodies, the cast globe-style body of the 49000 Series offers lower in weight and overall dimensions which helps reduce installation costs.
• Enlarged body galleries and expanded outlets provide velocity control for expanding gases.
• Galleries sized to accept “typical” V-LOG trim dimensions for a standardized body platform and an optimized solution.
• V-LOG trim for use with either compressible or incompressible fluids under severe service conditions.
• V-LOG and Lo-dB trim provide reduced noise and cavitation that could negatively affect the valve and/or surrounding equipment.

The V-LOG Trim can be configured for use with either compressible or incompressible fluids under severe service conditions making the 49000 Series valve a superior choice for liquid and gas applications including:

• Boiler feed water start-up and control 
• Steam letdown
• Pump discharge 
• Water reinjection
• Gas recycle

Sizes:
4” through 36”
(100 through 900 mm)

Ratings and Connections:
• Flanged: ANSI 150-2500
UNI-DIN 10 – 400
• Welded: BW

Body Materials:
• Carbon steel
• Stainless steel
• Chrome-moly

Actuators:
• Model 87/88 multi-spring diaphragm
• Model 51/52/53 piston cylinder

Trims:
• Single or double stage Lo-dB and V-LOG energy management trim available in low noise flow-to-open designs or anticavitation
flow-to-close variety of balanced trim options for Class IV and V shutoff

Inherent Characteristic:
• Linear or equal percentage