ARCA ECOTROL CONTROL VALVE

The ARCA ECOTROL^® globe control valve is flexible, requires little maintenance and is used as an all-rounder in many processes and industries.

The modular system consisting of valve body and sealing, trim, valve seat, stem seal, valve actuator and positioner offers a tailor-made and therefore ideal control solution for your process.

The ECOTROL^® system series controls steam, gas and oil as well as other liquid states and is therefore universally usable.

Various innovative design elements and a trim designed for the flow conditions guarantee maximum efficiency, reliability and safety.

The patented ECOTROL^® clamping seat system enables extremely easy maintenance of the globe control valve without special tools.

This means that functionally relevant trims can be changed quickly and cost-effectively by your own maintenance personnel.

ECOTROL^® stands for holistically conceived technology with unique service and maintenance convenience, low operating costs and low life cycle costs.

High-performance valve actuator:

Our pneumatic multi-spring actuators, with robust construction and integrated explosion protection, are characterized by short actuating times, optimized actuating forces, and reliable tight sealing. ECOTROL® control valves are also available with electric or electrohydraulic actuators.

Multi-functional positioner :

The ARCAPRO® digital positioner is a multi-functional interface with integrated bus support for the controller or process control system.

Installation and mechanical connection to the valve actuator are compliant with VDI/VDE 3847 guidelines for open, non-proprietary concepts.

Reliable stem seals:

From the stuffing box to the hermetically-sealed bellows, this stem seal can be tailored exactly to the process fluid, pressure, and temperature required.

The design, stem surface, and packing material complement each other perfectly to avoid problems with friction, corrosion, and emissions.

Fixed-form housing seal:

Our design connects the valve housing and the bonnet in the force bypass, and the housing seal is clamped in place preventing it from “yielding”.

Robust, high-precision valve trims:

These are specially designed for the prevailing flow conditions in your plant.

The shapes of the throttle valves and valve seats and the material from which they are made are optimized to meet your requirements.

Our valve seats integrate the unique quick-exchange system and can be replaced without special tools.

The float-mounted clamping seat and the metal or soft seal for the valve seat ensure leak-tight, reliable sealing.

We innovate, you benefit!

• Patented valve seat with PTFE soft seal and metal secondary seal：Absolute seat tightness, Defined preload, Long service life
• Symmetrical seat rings made from a wide variety of materials:  Reproducible seat tightness due to self-centeringz, Low wear and tear minimizes cost of spare parts
• PTFE V-ring packing with additional precision sealing element:  Safety and hermetic sealing, Low maintenance
• Double-life quick-exchange system for seat rings and plugs:  Maintenance without special tools
• Wide variety of valve trims optimised for all applications:  Maximum process flexibility with high control quality, Low noise emissions
• Valve plug and stem can be replaced separately:  Reduced storage, Cost-effectice plug replacement
• Flow-optimised valve housing:  High flow coefficients, low noise emission
• Compact, robust design:  Minimum mounting space required, low weight

General Data

Series : 8C/6N/6H

DN : 15 – 100 / ½” – 4″

Face-to-Face dimension : PN16/40: EN558 Series 1

PN : 16-63

ANSI : Class 150 – 600

Temperature range : -196 °C to 650 °C

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Globe Valve

Superior performance in liquids and gaseous services is the hallmark of the GFlo Globe Control Valve.

Easy, quick and economical maintenance makes the GFlo Globe Control Valve more user friendly.

The spring cylinder actuated GFlo imparts stiffness and maintains very high precision in positioning, strong response, repeatability and controlled high speed movement are the characteristics absent in diaphragm operated control valves. GFlo has the thrust capability to shutoff against higher fluid pressures as it can handle up to 150 Psi / 10.30 Bar air supply.

Valve closure is totally dependent on springs in most diaphragm actuators.

The unique design of GFlo enables it to combine the spring force, fluid pressure and supply air pressure to achieve an extremely tight shutoff.

A self-aligning seat ring adds to and further improves the shutoff capability.

Galling at cage is the culprit in many common maintenance issues with globe valves because of the close metal-to-metal contact between plug & cage.

The GFlo has two top heavy duty stem guides. Contact between the plug and seat retainer is completely avoided in GFlo.

Easy and quick maintenance is permitted due to clamped-in seat and top entry trim.

• Reliable High-thrust Cylinder Actuator.
• Accurate Positioning.
• High Repeatability.
• Double Stem Guiding does not come in contact with operating fluid.
• Sufficient Clearance between plug head and seat retainer to avoid galling.
• Self-Aligning seat ring.
• Shutoff assisted by fluid pressure, cylinder spring and air pressure.
• Corrosion resistant construction.
• High Thrust cylinder overcomes high pressures to provide exceptional tight shutoff.
• Anti-Cavitation and Noise Attenuation trim options.
• Heavy-Duty plug stem.
• Excellent Interchangeability between sizes and other MASCOT products.
• Valve design minimizes requirements for stocking spare parts.
• Stiff, Heavy-Duty parts provide extended life.

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The high-performance DiskFlo Butterfly Valve is used to achieve bi-directional bubble-tight shutoff while maintaining low breakout torque at high and low pressure drops.

The high-performance DiskFlo Butterfly Valve uses pressure assisted Jam-lever toggle seating concepts.

By utilizing the pressure drop across the valve to aid the seating process, Jam-lever toggle seating assures low breakout torque.

The need for strong actuator seating force is reduced since much of the force is supplied by the fluid pressure.

To achieve especially high-performance throttling, even in large pressure drops close to the seat, it is combined with a MASCOT high thrust cylinder actuator and a double eccentric cammed disc.

Soft Seat :

To help energize the soft seat to bubble-tight shutoff in either flow direction, including alternating flow applications, Jam-Lever Toggle seating concepts utilize the pressure drop across the valve.

Jam-lever Toggle soft seats achieve ANSI Class VI shutoff.

Metal Seat :

For applications involving temperatures higher than those permitted by the Jam-lever Toggle soft seat, metal seats are used.

A highly flexible lip, which assures full circle contact between the seat and disc when the valve is closed, is incorporated in the design.

The lip flexibility permits breakout torque for the metal seat is the same or less than soft seat breakout torque.

ANSI class IV shutoff is achieved through DiskFlo metal seats.

Dual Seat :

DiskFlo dual seats incorporate both the Jam-lever Toggle soft seat and the flexible lip metal seat for added protection in unclean fluids or demanding applications. It also makes the DiskFlo a Firesafe Butterfly Valve.

DiskFlo Double Eccentric Cammed Disc :

To lift it out of the seat immediately upon actuation, a double offset has been designed into the disc. This avoids wear on the seat and disc, reducing leakage and parts replacement.

The throttling also improves as the friction is eliminated.

Flow Direction :

Jam-lever Toggle seating allows DiskFlo to flow either shaft downstream or shaft upstream, depending on service conditions.

With the shaft downstream the flow tends to open the valve. With the shaft upstream the flow tends to close the valve.

Butterfly Valve

Flow Characteristics :

The inherent flow characteristic of the DiskFlo valve is a modified parabolic.

Other characteristic curves are achievable by means of a MASCOT HiFlo Positioner or a SMART positioner.

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VFlo – (V-Notch) Segmented Ball valve

The VFlo – Segmented Ball Valve is designed to provide effective control for demanding applications.

It is a rugged design segmented ball valve which overcomes the problems of harsh, particle entrained processes, and fibrous/unclean services.

The VFlo also provides accurate, reliable control in a broad range of applications, such as Chemical, Power and Oil & Gas, Petro-Chemical & Pulp & Paper.

The VFlo addresses and solves many long-standing challenges faced by traditional ball valves like:

• Piping forces that unevenly load the seal
• Low rangeability due to limited orifice characterization
• Unsatisfactory shutoff capabilities

Metal Seal: 

Using the pressure drop across the valve, flex-lock sealing energises the seal to bubble tight shutoff in either flow direction.

ANSI class IV is achieved with a metal seal.

With an increased differential pressure, the sealing capacity is increased with flex-lock.

With the pressure entering the cavity with the shaft downstream, the flexible seal deflects into the ball, and causes it to seal tighter against the ball.

With pressure entering the cavity with the shaft upstream, the back-up ring locks the seal against the ball and causes it to seal tighter against the ball.

VFlo – (V-Notch) Segmented Ball valve

Soft & Dual Seal:

Using the pressure drop across the valve for soft sealing as well, the VFlo energises the seal to bubble tight shutoff in either flow direction.

ANSI class VI is achieved with a soft seal and ANSI class IV with a dual seal.

The Soft seal ring is standard for the VFlo and utilizes a 316 SS or Inconel Ring as a backup in conjunction with a Filled PTFE / PEEK seat.

Such design provides for a quick and easy replacement in case of failure. The backup ring also provides shear action hence scraping any developments on the ball.

segmented valve

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