The C-Series valve is the best choice in large bore isolation applications. The valve has been designed to withstand high temperatures up to 1652°F , and high pressures up to 43,000 psig. By working with leading power producers, MOGAS engineers have successfully designed the C-Series valve line which isolates under the extreme conditions found in today's power plants. With more than 25 years of engineering expertise, each C-Series valve is designed specifically for the application.  

• Straight-through Bore Path
  Sealing surfaces not exposed to torturous effects of high pressure steam Greatly minimizes any pressure drops Allows for higher Cv Available in large bore sizes Bidirectional Sealing
• Floating ball design Ball & Seats
  Mate-lapped for 100% sealing contact Ensures absolute shutoff Corrosion resistant Seats are protected from flow in open / closed position Seats are field replaceable 
• Forged Body
  Designed to withstand high temperatures up to 1652°F / 900°C High pressures up to 43,000 psig Inner 
• Stem Seals
  Provides a reliable combination of bearing and pressurized stem seal 
• Seat Spring
  Assisted by line pressure, provides a constant mechanical force on ball against seat to maintain seal

Power Generation Control valve isolation Main steam isolation Feedwater heater isolation Boiler feed pump isolation Economizer isolation Bottom Ash Isolation Isolation Applications	Refining Catalyst Slurry Handling Coal Slurry Handling / Ash Removal Heavy Oil Units Hydrogen Isolation Hydrotreating Units Isolation in Coker Units Isolation in FCCU Applications
Petrochemical / Chemical
Acetic Acid Handling Catalyst Handling Dowtherm Handling Gas Furnace Isolation	Lethal Services Polyethylene Isolation Polypropylene Isolation Solids Handling

Innovative Technology — A Patented Design   MOGAS now offers FlexStream® — an engineered rotary control ball valve solution that incorporates a direct mounted actuator control package. Its flexible design, combined with superior performance in controlling the fluid flowstream, make FlexStream the preferred choice for extreme conditions.

• Designed to Give You More Control 
  By forcing the process fluid to turn through a series of right angles, the fluid can be controlled at each stage of pressure letdown. Right-angle turns and expanding flow passageways remove kinetic energy from the fluid, while lowering pressure in a controlled manner. 
• Media
  Liquids Gases Multi-phase fluids

Advantages Surpass Traditional Control Valves

• Innovative design that delivers all the control of a traditional globe or axial valve
• Utilizes standard rotary ball valve technology
• Cost per Cv much lower than traditional control valves
• Footprint much smaller than traditional, larger control valves
• Exceptionally high rangeability

Flexible Options to Fit Your Situation

• Floating or trunnion ball design
• 2-piece or 3-piece body construction
• Metal-seated or soft-seated
• Wide range of material options
• Sizes from 2-inch to 36-inch
• ASME 150 – 2500 Class
• API 5000 – 15000 Class

FlexStream® Applications Compressor anti-surge Feed gas regulation Gas to flare Emergency depressurization Export gas regulation Sootblower Condensate control

Heater drain / dump / level Deaerator level control Feedwater control Inlet / outlet pressure control Gas withdrawal Emergency & service vents Fuel gas regulation valves Metering station valves Pipeline regulator

PORV ASME TDP-1 1998
Built for the prevention of water induction into steam turbines in Cold Reheat applications Meets and exceeds full, 2-inch bore reliability requirements 

Two-Piece, Cast Body

• Available in materials WCC, WC9 and C12A Allows for valve repairability

Seat Spring

• Assisted by line pressure, provides a constant mechanical force on ball against seat to maintain seal 

Ball & Seats

• Mate-lapped for 100% sealing contact Ensures absolute shutoff Corrosion resistant Seats are protected from flow in open / closed position Seats are field replaceable

Inner Stem Seals

• Provides a reliable combination of bearing and pressurized stem seal 

Quarter-turn, Non-rising Stem

• Live loading
• Quick open / close operation
• Extends the packing life

The MOGAS PORV, a pneumatic actuated pressure relieving valve, prevents excessive system pressure accumulation. The set pressure of the PORV is lower than that of the spring loaded safety valve to prevent or reduce the number of lifts of the safety valve, thus extending their life. The PORV is available either non-stamped or with the “V” stamp. The “V” stamped PORV has been flow certified by the National Board of Boiler and Pressure Vessel Inspectors.

The PORV operates as a system. The MOGAS ball valve is normally closed. The pressure switch senses steam pressure and closes an electrical switch when the pressure exceeds a predetermined point. This in turn energizes the solenoid valve, which pressurizes the “to open” cylinder port of the pneumatic actuator, opening the ball valve. When the pressure switch senses that the steam pressure has returned to normal, the electrical switch within the pressure switch opens, de-energizing the solenoid valve and closes the MOGAS ball valve.

PORV Standard Application

• Overpressure relief of boiler/superheater header 

Sizes 

• 2-1/2 to 4 inch

Standard Components

• MOGAS ball valve Actuator 
• Four-way electrically operated solenoid valve 
• Control box 
• Limit switch 
•  

Optional Components

• Pressure switch
• Siphon tube 
• Air reservoir kit

Features

• ASME “V” stamp available
• Live loading ensures zero emissions from stem packing in the most severe temperature shocks
• High nickel alloy base ball and seat with a proprietary coating ensures superior wear resistance
• Quick operating pneumatic actuator decreases wear on sealing surfaces
• Field repairable

End Connections

• Per customer specification

Through years of field experience, working with major power producers and a sophisticated performance analysis procedure, MOGAS has developed a product line dedicated to absolute isolation of critical equipment, dependable on/off operation for drains and vents, as well as longer valve life for increased run-time.

MOGAS provides its advanced technology to the power industry with the RSVP designed to handle high-temperatures, high pressures, high-cycling, thermal shock and abrasive media.

RSVP Design Features & Benefits

Inconel 718 Ball and Seats

• Mate-lapped for 100% contact
• Ensures absolute shutoff
• Corrosion resistant
• Seats are protected from flow in open / closed position

Spray and Fused Chromium Carbide Coating Advantages*

• Withstands thermal shock
• Handles high cycling applications
• High strain to fracture
• Maintains strength of base metal
• Erosion resistant

* Standard coating on ASME 3100 & 4500 Class, Available Upgrade on 600 – 1500 Class valves to provide additional corrosion resistance and allow for thermal shocks

Rigid Mounting Bracket

• Designed to support actuator in any position

Stem & Packing Arrangement

• Live loading
• Quarter-turn non-rising stem does not deteriorate packing
• Extensive stuffing box
• Dual anti-extrusion rings keep packing in place

Mechanical Precision Stop

• Prevents turning ball 180° 
• Eliminates misalignment

Seat Spring

• Assisted by line pressure, provides a constant mechanical force on ball against seat to maintain seal

The SC-3PC has a three-piece body assembly with two proprietary body seals that allow the valve body to be easily removed while the end connections remain in line. The design also allows the valve body to be tested after repair, prior to insertion back in-line.

The SC-3PC is used in power plants for isolation of high pressure/high temperature applications.

 

Standard Applications

Power Generation

• Sootblower header
• Hot reheat spray
• Superheater spray
• Main turbine drain valve
• Boiler feed pump
• Main steam supply
• Main boiler drain
• Booster pump isolation

In-line Repairability

• Three-piece valve assembly
• Valve body can be easily removed while end connections remain in-line
• Allows valve body to be tested after repair, prior to insertion back in-line

Ball & Seats

• Mate-lapped for 100% sealing contact
• Ensures absolute shutoff
• Corrosion resistant
• Seats are protected from flow in open / closed position
• Seats are field replaceable

Seat Spring

• Assisted by line pressure, provides a constant mechanical force on ball against seat to maintain seal

Body Gaskets

• Two proprietary body joint seals of Inconel 718
• Gold plating of gaskets creates a metallic permatext to assist in sealing
• Lowers contact stresses
• Ensures zero body leaks

Quarter-turn, Non-rising Stem

• Live loading
• Quick open / close operation
• Extends the packing life