Ashka Inc

• Sampling/Isolation Valves
• Severe Duty Valves
• General Service Valves

Copes-Vulcan may optimize each design for the application and operating conditions. Actuation may be manual, pneumatic (diaphragm or piston), electric or hydraulic Copes-Vulcan offers the widest variety of valve configurations in the power, process and nuclear industries. We offer general service and severe duty control valves for a range of media, on/off or modulating service. With our wide selection of trim configurations.

Designed specifically for severe duty service, series 1000 actuators can be used in any application where shock and/or vibration may be encountered. Model 1000 actuators have undergone extensive testing and analysis for seismic and environmental considerations and are suitable for nuclear applications. Series 1000 actuators have undergone extensive testing and analysis for seismic and environmental considerations and are suitable for nuclear applications.

Series 1000 actuators are available with 60, 100, 160, 320 and 400 square inches (38708, 64516, 103225, 206451 and 258064 square millimeters) of effective diaphragm area and may be supplied as either direct or reverse acting.

Available options:

• Manual Override
• Hydraulic Damper
• Standard or High Output Handwheel

The Copes-Vulcan PRDS is a single seat, angle style valve that combines pressure and temperature reduction in one compact solution.

The high pressure, high temperature vapor enters the main branch, is reduced in pressure and then coolant is introduced. The high velocities and turbulent flow conditions that are present immediately following the pressure reduction allow for rapid atomization and absorption of the coolant.

The PRDS is best suited to applications requiring continuous modulation.

Features:

• High quality cast body
• Smooth body contours to reduce stress concentration
• Fully guided plug reduces wear
• Trim is fully accessible through the bonnet for ease of maintenance
• Solid valve stem eliminates thermal stress experienced in hollow stem designs
• Unique water mixing provides superior control and eliminates piping thermal liners.

Copes-Vulcan RAVEN™ trims are used in severe service applications where true velocity control is needed by limiting the fluid velocities at the exit of the trim. RAVEN™ trim precludes the problems typically associated with high velocity: erosion, vibration, poor control and cavitation.

Every RAVEN™ trim is custom designed to meet the needs of the toughest liquid, steam and gas services in the power and process industries.

Copes-Vulcan Cascade trim solves the problems of short life and high replacement costs for valve trim in high-pressure drop service. It is a cage-guided plug throttling trim designed primarily for high-pressure drop water applications where cavitation, vibration and excess wear would occur with conventional trims.

Cascade trim features a series of labyrinth grooves, machined into the plug along its throttling surface. This series of grooves provides a cascading effect, so that the pressure drop is divided equally among the grooves. This reduces the amount of inner valve pressure recovery and subsequent vapor formation. Cascade trim is ideally suited for applications where cavitation can exist at low flow conditions, when the plug is just off the seat. By holding the clearance between the plug and the cage in the labyrinth groove section to close tolerances, the proper cascading effect is achieved.

Typical Applications:

• Pump recirculation or bypass
• High-pressure desuperheater – cooling water control
• Supercritical boiler start-up reheat
• Superheat spray control

The Balanced Single Seat Port Throttling trim is a general-purpose cage guided trim for both on/off and modulating control. It is suitable for use in most non-abrasive/non-adhesive, compressible and non-compressible fluid services.

The balanced plug design reduces actuator force requirements thus permitting the use of smaller, lighter and easier to maintain actuators while providing tight shutoff capability.

Balanced Single Seat Port Throttling trim is designed for valves 2” (50 mm) and larger and is suitable for applications where the service temperature does not exceed 500°F (260°C).

The CAV B9 trim can be applied in liquid service where low-level cavitation is evident.

The stepped radially drilled cage design reduces the effects of cavitation, along with the associated problems of noise and erosion, by forcing the cavitation to occur in the center of the cage, away from the metal surfaces. In both flow under and flow over configurations of CAV B9 trim the fluid is divided into many lower energy jets.

By varying the hole diameter and placement, custom flow characteristics can be provided.

CAV B9 can be used as an effective trim for flashing operations in the flow under the seat configuration.

The Copes-Vulcan DSCV is an angle style valve that combines pressure and temperature reduction . The DSCV is custom engineered for specific operating parameters. DSCVs are generally used for applications where the valves typically remain closed for long periods of time to isolate steam flow.

Features:

The Copes-Vulcan Model F100-40 Sampling Valve was developed to provide positive shutoff and reliable operation for both sampling and containment isolation applications in nuclear power plants.

Such high-pressure water, steam and gas applications demand exceptional seat tightness. The Copes-Vulcan design incorporates a high-thrust actuator with thru-hardened trim components to ensure better than ANSI B16.104 Class V leakage at 2500 psid (17,255 kPa).

Copes-Vulcan has supplied check valves to the nuclear industry since the early 1970’s. It is designed to provide positive shutoff even at low differential pressures.

Features:

• 3 – 18 inch, Class 150 –1500+
• Bolted bonnet
• Available without cobalt
• Carbon, stainless and special materials

The Copes-Vulcan MA-I/MA-IU Mechanical Desuperheater is generally used for attemporating applications featuring steady loads. It is particularly designed for rugged service and can maintain final temperature to within 20°F (11°C) of saturation.

Maximum cooling liquid capacity is 25,860 lbs/hr (11,700 kg/hr) at a nozzle differential pressure of 160 psi (1100 kPa) when using 100°F (38°C) water. Multiple units or other models can be installed in a header for higher capacities.

This model is available in two mounting options. The MA-I is designed for welding to the pipe line and the MA-IU is flange mounted. The MA-IU also offers mounting commonality with other ‘U’-series desuper heaters (MA-IIU, MNSD-V and SAMN-U).

The VAD is a cost effective, line size desuperheater. Produced from stock materials it is readily available to satisfy general desuperheating and gas cooling applications.

Essentially a dynamically contoured, stainless steel spray head concentrically located within a short section of pipe (body). The pipe acts as the desuperheater’s outer body and pressure boundary. It fits into the main vapor line via either line size flanged or butt weld end connections for easy installation.

Features:

• Temperature control to within 5 °C (10 °F) of saturation
• Horizontal or vertical installation
• High rangeability 15:1
• Coolant pressure need only be 0.5 bar (7 PSI) superior to vapor
• Self-regulating 360 degrees coolant annulus for uniform distribution.
• No spray nozzles to introduce blockage concerns
• Full atomization over the entire operating range
• Minimal vapor side pressure drop
• No thermal liners required.
• Butt weld or flanged to ANSI 150, 300, 600 or DIN PN10, 16, 40, 64, 100.
• Body: Carbon, Chrome Moly, and Stainless Steel. Spray Head and Wetted Pants: Stainless Steel

The Copes-Vulcan SA-35 Steam Atomizing Desuperheater is used to reduce the temperature of vapors such as steam with condensate such as water. It was developed to obtain a more uniform spray under varying load conditions where no pressure drop in the steam header can be tolerated.

This desuperheater is made in four sizes, in pressure classes up to and including Class 1500.

Features:

• High rangeability 25:1
• Shorter mixing distances than mechanical atomizing desuperheaters
• May be installed in either horizontal or vertical piping
• Temperature control to within 15º F (8.3º C) of saturation with the ability to hold set point within tolerance of 10º F (5.6º C)

The Copes-Vulcan Multiple Nozzle Spray Desuperheater offers optimum performance and range ability in a variable spray tube design. The MNSD fills the performance gap between the limited capability of a simple mechanical spray type desuperheater and the virtually unlimited capability of Copes-Vulcan’s Variable Orifice Desuperheater. The MNSD offers high temperature capabilities and up to Class V leakage rating.

Features:

• Temperature control to within 15°F (8°C) of saturation with the ability to hold set point within a tolerance of 10 °F (6°C)
• Standard maximum available Cv of 10.5 (Kv of 8.9)
• Water flow turndown of 150:1 or higher
• User friendly design - nozzles and trim assembly can be removed without disconnecting the actuator
• No need for separate cooling water control valve
• Designed for applications with temperatures up to 1150°F (620 °C)
• Available in standard classes 600, 900,1500 and 2500 per ANSI B16.5
• Cooling water inlet pressures up to 3500 psig (24 MPag)(higher pressures on application)
• FCI 70-2/ANSI Class IV or Class V shutoff capability
• Suitable for vertical or horizontal installation
• Standard ANSI connections are 3" (80mm) raised face flange (steam) and 1.5" (40mm) raised face flange (water)
• Designed to resist thermal fatigue

Copes-Vulcan’s VO Variable Orifice Desuperheater is recognized industry wide as a versatile desuperheater. It is easily capable of meeting the most demanding needs for desuperheating in both the power and process industries.

The VO offers extremely fine control and exceptional turndown that is limited only by the rangeability of the coolant control valve itself.

With excellent mixing of vapor and coolant, control is possible throughout the entire operating range to within 3± 5° F (± 2.5° C) of the set point which can be as close as 10° F (5° C) above saturation. The coolant pressure which is required at the inlet to the VO need only be 5 psi (35 kPa) above the pressure of the vapor being desuperheated.

Because virtually all of the desuperheating occurs within the VO body itself, the temperature sensing element can be as close as 14—20’ (4—6m) from the desuperheater outlet.

Features:

• The VO II offers extremely fine control and exceptional turndown that is limited only by the rangeability of the coolant control valve itself. Typically the unit can achieve a rangeability of 100:1 when matched with a Copes-Vulcan control valve fitted with Cascade trim design.
• Due to excellent mixing of vapor and coolant, control is possible throughout the entire operating range to within 5 °F (2.5 °C) of the set point, which can be as close as 10 °F (5 °C) above saturation.
• The coolant pressure, which is required at the inlet to the VO II need only be 5 PSI (0.35 bar) above the pressure of the vapor being desuperheated.
• Since virtually all the desuperheating occurs within the body itself, usually no pipe liners or long downstream straight pipe runs are necessary.

The spring assisted multiple nozzle desuperheater reduces steam or gas temperatures by introducing cooling liquids directly into the hot vapor.

Copes-Vulcan's SAMN-U has six nozzles which can be opened or closed to vary the coolant flow. This provides a higher turndown than single nozzle units where the amount of coolant flow is dependent only on the ability to vary the pressure drop across the nozzle.

SAMN-U contains an integral spring loaded flow plug which moves in response to a change in pressure differential between the coolant inlet pressure and the main header pressure. As the plug moves, more or less nozzles are uncovered introducing more or less coolant into the main header. The cooling water inlet pressure is controlled by a Copes-Vulcan Severe Duty or General Service Globe Valve.

Features:

• Rangeability as high as 9:1
• Temperature control to within 15°F (8°C) of saturation with the ability to hold set point within a tolerance of 10°F (6°C)
• Standard maximum available Cv of 2.50 (Kv of 2.16); higher capacity available
• Available in standard classes 150, 300, 600, 900, 1500 and 2500 per ANSI B16.5
• Cooling water pressure minimum of 225 psi (1550 kPa) to a maximum of 1000 psi (6900 kPa) above the steam header pressure at the inlet
• Mounting commonality with ‘U’-Series desuperheaters

The High Temperature Balanced Single Seat Port Throttling trim is virtually identical in all respects to the Low Temperature Balanced Single Seat Port Throttling trim, except that piston rings are used in lieu of the elastomeric seal on the trim’s plug.

While the use of piston rings does limit the leakage rate to ANSI Class IV, this trim is a viable option when a balanced plug is desirable and when temperatures of the fluid exceeds 500°F (260°F).

The trims are available for valve sizes 2” (50 mm) and larger.

The Unbalanced Single Seat Port Throttling trim is a general-purpose cage guided trim for both on/off and modulating control.It is suitable for use in most non-abrasive/non-adhesive, compressible fluid services. This trim is generally used in moderate pressure drop and small size applications.

The port throttling plug modulates flow by uncovering ports in the cage. This cage porting produces the necessary pressure drop for flow control. The geometry of the ports can be varied to provide custom flow characteristics.

The design of the unbalanced plug offers the capability of tight shutoff for service temperatures exceeding 1000°F (537°C).

Copes-Vulcan engineers and manufactures a variety of valves for the nuclear industry. Copes-Vulcan produces globe, gate, swing, check, butterfly, ball and sampling valves for their nuclear customers.

Copes-Vulcan has provided technical solutions for a variety of nuclear applications including feedwater, steam dump, pressurizer spray, reactor coolant, sampling, service water, and safety injection valves.

Copes-Vulcan nuclear valves are manufactured in McKean, Pennsylvania. The McKean facility holds the following certification 'N', 'NPT', and 'NR' and is certified by ASME to manufacture valves and components to the Boiler and Pressure Vesssel Code.

Copes-Vulcan offers field service technicians and technical support to their customers, and has been actively providing refurbishments and upgrades of existing equipment to help the utilities to reduce their maintenance costs and support power uprates.

Copes-Vulcan has manufactured valves for boiling water reactors (BWR), heavy water reactors (CANDU) and pressurized water reactors (PWR), and has supplied valves to many countries including the United States, Canada, Mexico, South Korea, China, Japan, Switzerland, Brazil and more.

This trim is a general-purpose cage guided trim for on/off or modulating control. It is designed for low to moderate pressure drop applications. The solid plug has a contour on its lower end that provides varying flow area with lift, thus regulating the flow.

It can be used with a wide variety of non abrasive/non-adhesive compressible and non-compressible fluids. The trim is single seated, metal to metal.

It is the standard trim for valve sizes 1½" (38 mm) and smaller.

The SD-Severe Duty valve is Copes-Vulcan’s premium severe duty and critical service control valve design.

While virtually identical in outward appearance to the Copes-Vulcan legendarily rugged and dependable D-100 valve line which it replaces, the SD-Severe Duty line is the next generation of control valves designed specifically for severe duty applications. It is the preferred style of valve for applications such as pump recirculation, feedwater control and feedwater start-up, flashing or cavitating service, critical pressure drop gas and steam service, and any potentially noisy or vibration-prone service. It is also widely used for nuclear "N" stamp and seismic applications.

The DSCV-SA is generally used for Turbine Bypass applications where the valves typically remain closed for long periods of time to isolate steam flow.

Features:

• Cast & fabricated design.
• Wide size configuration
• Extremely flexible
- Flanged or butt weld connections
- ANSI 150 – 4500, standard, intermediate and split classes
- Minimum straight line lengths required
• High water capacity for large cooling duties
• Low required coolant pressure
• High coolant turndown ratio
• Pressure seal or bolted bonnet; ‘Quick Change’ design trim
• Repeatable class V tight shutoff
• High pressure balanced
• High turndown ratio for both steam and water
• Noise attenuating trim options
- Single stage hush
- Multi-stage hush
- RAVEN
• ‘Quick-Change’ trim design no special tools

The DSCV-SA (Direct Steam Converting Valve - Steam Atomization) from SPX is designed for unprecedented operational reliability and eliminates potential risks associated with substandard designs during plant start-up, shutdown and turbine trips. As a result, the DSCV-SA is at the forefront of modern thermodynamic engineering in steam conditioning.

The Copes-Vulcan MA-II/MA-IIU is a mechanical atomizing desuperheater that is generally used for applications which feature steady loads. It is particularly designed for rugged service and can maintain final temperature to within 20°F (11°C) of saturation.

In addition to steady load service, it is often used for attemporating applications, and performs equally well for both. Maximum cooling liquid capacity is 175,000 lb/hr (80,000 kg/hr) at a nozzle differential pressure of 400 psi (2760 kPa) when using 100°F (38°C) water.

This model is available in two mounting options. The MA-II is designed for welding to the pipe line and the MA-IIU is flange mounted. The MA-IIU also offers mounting commonality with other ‘U’-series desuperheaters (MA-IU, MNSD-V and SAMN-U).

Copes-Vulcan’s VO Variable Orifice Desuperheater is recognized industry wide as the most versatile desuperheater available. It is easily capable of meeting the most demanding needs for desuperheating in both the power and process industries.

The VO offers extremely fine control and exceptional turndown that is limited only by the rangeability of the coolant control valve itself.

The VO-76 is also available with a housing fabricated from forged and wrought piping components when technical specifications and/or N.D.T. requirements preclude the use of castings. Again, reducers and flanges can be added as required, but unlike the cast VO-76, this applies to both inlet and outlet on the fabricated version of the VO-76. By using various sized reducers/expanders and/or flanges, an almost endless variation of dimensions and end connections can be achieved.

Copes-Vulcan’s Numbered Cascade Trim assembly is used in control valves where low flow rates and high turndown requirements prevail such as in desuperheater cooling water control, fuel oil control, blowdown and chemical feed.

A series of labyrinth grooves along the throttling surface of the plug provide a cascading effect so that the pressure drop is equally divided among the grooves, thereby reducing the seat wear that would normally be experienced if the entire pressure drop is taken across the seat. The cage guided tapered plug, in conjunction with the tapered cage bore, provides for maximum trim range ability.

One Stage HUS_H Trim is a specialty trim designed to reduce noise associated with compressible fluids and the undesirable effects of flashing and cavitation that would occur with most single pressure drop trims.

The trim does not prevent flashing or cavitation, however the damaging effects are reduced to acceptable levels through the use of many small ports. The HUS_H cage consists of a single cylinder with a large number of radially drilled orifices. The fluid exits the numerous orifices as low energy jets resulting in significant reductions in noise or erosion.

Although many standard designs are available, One Stage HUS_H is often custom engineered to provide various flow characteristics for optimal performance under specific operating conditions.

Typical Applications:

• Drains
• Steam pressure reduction
• Steam dump
• Feedwater regulation
• Deaerator level control
• Condensate recirculation