top of page

VSI Controls

SERVER SERVICE CONTROL VALVES

Available at Alpha Process Sales & Murray Engineering

​

VSI.png
A Petrovalves Company
Sever service control valves up to 60K psig with multi-Stage trim options and tight shut-off

VSI CONTROL VALVES

Reciprocating Globe Valves

  • The G-Stream is the work-horse of the reciprocating valve offering with a modern design that incorporates an advanced clamped-in seat ring and a double upper guide system. It is available in a wide range of configurations and suitable for a wide variety of applications in the continuous process industries. Its double-acting spring-cylinder actuator ensures high actuation thrusts, pneumatic stiffness and excellent performance levels. The G-Stream is extremely versatile and can be supplied with several options to meet the specific needs of each application.

    • SIZES: 1/2″ through 36″ (15 through 900 mm)

    • RATING CLASS: 150, 300 and 600​

    • BODY MATERIALS: Carbon Steel, Chrome-Moly, Stainless Steel, Duplex, Hastelloy, Monel, Alloy 20, Bronze, CZ 100, Titanium, Most other Alloys

    • END CONNECTIONS: Integral or separable flanges: ANSI 150-600, UNI-DIN 10-100, SW or BW, NPT, Grayloc®

    • TRIM MATERIALS: Equal percentage, Linear, Quick Open, Quick change seat, Stainless Steel 316 or 420, Duplex, Most other Alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: Versatile configurations: single seat, cage, angle, 3-ways, steam-jacketed, cryogenic, micro flow, bellows seal, low noise and anticavitation, reduced trims. Double top-stem guiding designed out of stream and large stem diameter ensures shutoff and no galling or sticking, Simple to service and maintain

  • Integrated system with valve, actuator and digital positioner, versatile, robust and simple, compact and lightweight, high flow Cv coefficients, low emission packing, micro flow design available, high performance and fast delivery, general service & utilities.

    • ​SIZES: 1/2″ through 4″ (15 through 100 mm)

    • RATING CLASS: 150 and 300

    • BODY MATERIALS: Carbon Steel, Chrome-Moly, Stainless Steel

    • END CONNECTIONS: Integral flanges ANSI 150 – 300, UNI – DIN 10-40, SW or BW, NPT

    • TRIM: Equal percentage, Linear, Quick Open, Quick change seat, Stainless Steel 316 or 420

    • ACTUATOR: Double Acting cylinder with spring for failsafe action

    • FEATURES: Integrated system with valve, actuator and digital positioner, versatile, robust and simple, compact and lightweight, high flow Cv coefficients, low emission packing, micro flow design available, high performance and fast delivery, general service & utilities.

  • Versatile configurations: single seat, cage, angle, 3-ways, steam jacketed, cryogenic, low noise anticavitation, reduced trims. Double top-stem guiding designed out of stream and large stem diameter ensures shutoff and no galling or sticking, simple to service and maintain

    • ​SIZES: 1″ through 24″ (25 through 600 mm)

    • RATING CLASS: 900, 1500 and 2500

    • BODY MATERIALS: Carbon Steel, Chrome-Moly, Stainless Steel, Duplex, Hastelloy, Monel, Alloy 20, Bronze, CZ 100, Titanium, Most other Alloys

    • END CONNECTIONS: Integral or separable flanges: ANSI 900-2500, UNI-DIN 150-400, SW or BW, NPT, Grayloc®

    • TRIM: Equal percentage, Linear, Quick Open, Quick change seat, Stainless Steel 316 or 420,Duplex, Most other Alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: Versatile configurations: single seat, cage, angle, 3-ways, steam jacketed, cryogenic, low noise anticavitation, reduced trims. Double top-stem guiding designed out of stream and large stem diameter ensures shutoff and no galling or sticking, simple to service and maintain.

  • Globe and Angle configuration, extremely wear resistant, can meet any custom face to face requirements

    • ​SIZES: 1/2″ through 6″ (12 through 150 mm)

    • RATING CLASS: 150 through 4500

    • BODY MATERIALS: Any forged material

    • END CONNECTIONS: Integral flanges ANSI 150 – 4500, UNI – DIN 10-640, SW or BW, NPT, Grayloc®

    • TRIM: Equal percentage, Linear, Quick Open, Quick change seat, Stainless Steel 316 or 420, Most other Alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: Globe and Angle configuration, extremely wear resistant, can meet any custom face to face requirements

  • Specially designed for severe, flashing and erosive service, slurry fluids

    • ​SIZES: 1″ through 18″ (25 through 450 mm)

    • RATING CLASS: 150 through 1500

    • BODY MATERIALS: Carbon Steel, Chrome-Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Integral flanges: ANSI 150-1500, UNI-DIN 10-250

    • TRIM: Equal percentage, Linear, Quick Open, Specific hardened metal for each application

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: Specially designed for severe, flashing and erosive service, slurry fluids

  • “Y” type body, greater flow rate capacity per size, streamlined flow path, almost straight passage area creates less turbulence through the valve and piping

    • ​SIZES: 1 1/2” through 14″ (40 through 350 mm)

    • RATING CLASS: 150 through 600

    • BODY MATERIALS: Carbon Steel, Chrome-Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Integral flanges, ANSI 150-1500, UNI-DIN 10-100, SW or BW, NPT

    • TRIM: Equal percentage, Linear, Quick Open, Stainless Steel, Most other Alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: “Y” type body, greater flow rate
      capacity per size, streamlined flow path, almost straight passage area creates less turbulence through the valve and piping

  • Top entry design, light weight body, leakage Class VI, suitable down to -218°C (-360°F)

    • ​SIZES: 1/2″ through 6″ (12 through 150 mm)

    • RATING CLASS: 150 through 600

    • BODY MATERIALS: Stainless Steel, Alloys for cryogenic service

    • END CONNECTIONS: Integral flanges, ANSI 150-1500, UNI-DIN 10-250, SW or BW

    • TRIM: Equal percentage, Linear, Quick Open, Stainless Steel, other cryogenic alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: Top entry design, light weight body, leakage Class VI, suitable down to -218oC (-360oF)

​

Rotary Control Valves

  • EX-Plug: High Cv capacity, non-crossover shaft, std. anti blow-out proof stem, class IV and VI shut – off, NACE noise attenuator available.

    • SIZES: 1″ through 12″ (25 through 300 mm)​

    • RATING CLASS: 150 through 600

    • BODY MATERIALS: Carbon Steel, Chrome Moly, Stainless Steel, Duplex, Hastelloy, Monel, Alloy 20, Bronze, CZ 100, Titanium, Most other Alloys

    • END CONNECTIONS: Integral flanges, ANSI 150 – 600 UNI-DIN 10-100, Flangeless (wafer-style assembly)

    • TRIM: 17-4PH (standard) 316 with Alloy 6

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: High Cv capacity, non-crossover shaft, std. anti blow-out proof stem, class IV and VI shut – off, NACE noise attenuator available

  • V-Shape: V-notch Ball, high rangeability bidirectional seat, non-crossover shaft, class IV and VI shut-off.

    • SIZES: 1″ through 16″ (25 through 400 mm)​

    • RATING CLASS: 150 through 600

    • BODY MATERIALS: Carbon Steel, Chrome Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Integral flanges, ANSI 150 – 600 UNI-DIN 10-50, Flangeless (wafer-style assembly)

    • TRIM: Stainless steel 316 L Hastelloy C Inconel

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: V-notch Ball, high rangeability bidirecional seat, non-crossover shaft, class IV and VI shut-off

  • B-Disc: Double offset configuration, leakage class IV, V and VI, bi- metallic seal ring for bidirectional flow, cryogenic design, drilled wing design for anti cavitation or noise reduction available

    • ​SIZES: 2” through 36” (50 through 900 mm) *2” through 24” (50 through 600 mm)

    • RATING CLASS: 150 through 600, *900 and 1500

    • BODY MATERIALS: Carbon Steel, Chrome Moly / Stainless Steel, Duplex, Most other Alloys

    • END CONNECTIONS: Integral flanges, UNI – DIN 10-250, Flangeless (wafer style assembly), LUG type

    • TRIM: Carbon Steel / Stainless Steel Duplex, Most other Alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Electric, Hydraulic options

    • FEATURES: Double offset configuration, leakage class IV, V and VI, bi-metallic seal ring for bidirectional flow, cryogenic design, drilled wing design for anti cavitation or noise reduction available

      • ​*High pressure

  • AJ Triple Offset Metal Seated: Unique triple offset, quarter turn geometry for non-rubbing design, design meets API 609, ASME B16.34, EN 12516, EN 593, resilient metal sealing and torque seating for zero leakage tightness performance (tested to API 598), Stellite® gr. 21 overlay on seat for extended valve service life on a wide range of applications, all-metal construction for inherently fire safe valve design, blow-out proof stem as per API 609 requirements.

    • SIZES: 4” through 36” (100 through 900 mm)​

    • RATING CLASS: 150 through 900

    • BODY MATERIALS: Carbon Steel, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Integral flanges, Flangeless (wafer- style assembly), Lug type, Flange drilling-rating, ASME B16.5 Class 150 to 900, EN 1092-1 PN10 to 160

    • TRIM: Carbon SACTUATOR: Pneumatic, Hydraulic, Electricteel, Stainless Steel, Most other Alloys

    • FEATURES: Unique triple offset, quarter turn geometry for non-rubbing design, design meets API 609, ASME B16.34, EN 12516, EN 593, resilient metal sealing and torque seating for zero leakage tightness performance (tested to API 598), Stellite® gr. 21 overlay on seat for extended valve service life on a wide range of applications, all-metal construction for inherently re safe valve design, blow-out proof stem as per API 609 requirements

  • HXL: Side entry split body, trunnion design, high flow capacity, high rangeability, accurate control capability, class V and VI sealing capability, noise reduction on gas, anti cavitation on liquid, compatible with dirty fluids

    • ​SIZES: 2” through 48” (50 through 1200 mm)

    • RATING CLASS: 150 through 2500

    • BODY MATERIALS: Carbon Steel, Chrome Moly, Stainless Steel, Duplex, Most other Alloys

    • END CONNECTIONS: Integral flanges, ANSI 150 – 2500 UNI –DIN 10-400, BW

    • TRIM: Stainless Steel, Duplex Most other Alloys

    • ACTUATOR: Double Acting cylinder with spring for failsafe action, Pneumatic Scotch Yoke, Electric, Hydraulic options

    • FEATURES: Side entry split body, trunnion design, high flow capacity, high rangeability, accurate control capability, class V and VI sealing capability, noise reduction on gas, anti cavitation on liquid, compatible with dirty fluids

 

Pneumatic Actuators

 

  • L-Act: Disengaging handwheel, limit stops, positioners, solenoids, limit switches, others.

    • SIZES: 15, 25, 50, 100, 200, 300, 400, 600​

    • ACTION TYPE: Single acting air to open, Single acting air to close, Double acting with spring to open, Double acting with spring to close, Double acting

    • CYLINDER MATERIAL: Cast anodized aluminum alloy

    • AIR SUPPLY: Up to 150 psi (10,3 bar)

    • OPERATING TEMPERATURE: -40°F to 350°F (-40°C to 175°C)

    • OPERATING TEMPERATURE: -40°F to 350°F (-40°C to 175°C)

  • L-Act: Disengaging handwheel, limit stops, positioners, solenoids, limit switches.

    • ​SIZES: 235, 335, 435 mm

    • ACTION TYPE: Single acting air to open, Single acting air to close, Double acting with spring to close, Double acting with spring to open, Double acting

    • CYLINDER MATERIAL: CS, SS

    • AIR SUPPLY: Up to 150 psi (10,3 bar)

    • OPERATING TEMPERATURE: -40 to 350° F (-40 to 175°C)

    • OPTIONS: Disengaging handwheel, limit stops, positioners, solenoids, limit switches

    • FEATURES: Others

  • R-Act: Top mounted push only handwheel, side mounted or top mounted continuously connected handwheel, limit stops, positioners, solenoids, limit switches, others

    • ​SIZES: 25, 50, 100, 200, 300

    • ACTION TYPE: Single acting air to open, Single acting air to close, Double acting with spring to open, Double acting with spring to close, Double acting

    • CYLINDER MATERIAL: Cast anodized aluminum alloy

    • AIR SUPPLY: Up to 150 psi (10,3 bar)

    • OPERATING TEMPERATURE: -40°F to 350°F (-40°C to 175°C)

    • OPTIONS: Top mounted push only handwheel, side mounted or top mounted continuously connected handwheel, limit stops, positioners, solenoids, limit switches, others

De-superheaters Systems

  • DVP Variable Area: High rangeability, good water atomization also at minimum flow variety of size of spray nozzle sizes, accurate control capability, minimum dimension thanks to built-in control system, available for cryogenic application, high differential pressure allowed, with multistage trim design.

    • SIZES: 1” through 3” water side, 3” through 4” steam side​

    • RATING CLASS: 150 through 2500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel

    • END CONNECTIONS: Flanged ANSI 150 through 2500

    • TRIM: Stainless Steel, Most other Alloys

    • ACTUATORS: Double acting cylinder with spring for failsafe action

    • FEATURES: High rangeability, good water atomization also at minimum flow variety of size of spray nozzle sizes, accurate control capability, minimum dimension thanks to built-in control system, available for cryogenic application, high differential pressure allowed, with multistage trim design.

  • DSP Spring Assisted Probe: Easy and versatile design, no practical limitations in flow rate and operating conditions, no upper limitations in pipe size, with multiple nozzle layout

    • ​SIZES: 1” through 3” water side, 2” through 8” steam side

    • RATING CLASS: 150 through 2500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel

    • END CONNECTIONS: Flanged ANSI 150 through 2500

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: Easy and versatile design, no practical limitations in flow rate and operating conditions, no upper limitations in pipe size, with multiple nozzle layout

  • DSE Spring Assisted External Mounting: A variety of nozzle dimensions available, no practical limitations in flow rate and operating conditions, no upper limitations in pipe size, with multiple nozzle layout, internal protection linear available, water distribution piping designed with free expanding design

    • ​SIZES: 1/2” through 2” water side, 2” through 40” steam side

    • RATING CLASS: 150 through 2500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel

    • END CONNECTIONS: Integral Flanges Flangeless (water- style assembly) BW

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: A variety of nozzle dimensions available, no practical limitations in ow rate and operating conditions, no upper limitations in pipe size, with multiple nozzle layout, internal protection linear available, water distribution piping designed with free expanding design.

  • DVT Ventury Type: Good atomization even with very low steam velocity, suitable for very low flow rate

    • ​SIZES: 1/2” through 2” water side, 2” through 10” steam side

    • RATING CLASS: 150 through 2500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel

    • END CONNECTIONS: Integral Flanges, Flangeless (water- style assembly), BW

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: Good atomization even with very low steam velocity, suitable for very low flow rates

Regulators Self & Pilot

  • SAR Self Actuated Pressure Reducing: Direct operated pressure reducing valve, high rangeability, several membrane materials available, cryogenic design.

    • ​SIZES: 1/2” through 2”

    • RATING CLASS: 150 through 1500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Flanged ANSI 150 through 1500 NPT, GAS/BS

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: Direct operated pressure reducing valve, high rangeability, several membrane materials available, cryogenic design

  • SAB Self Actuated Backpressure: Direct operated pressure relief, backpressure valve, high rangeability, several membrane materials available, cryogenic design

    • ​SIZES: 1” through 2”

    • RATING CLASS: 150 through 600

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Flanged ANSI 150 through 600

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: Direct operated pressure relief, backpressure valve, high rangeability, several membrane materials available, cryogenic design

  • SAS Self Actuated Spring Pressure: Direct operated spring pressure regulator, high rangeability, several membrane materials available, low and high temperature design

    • SIZES: 1” through 20”​

    • RATING CLASS: 150 through 1500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Flanged ANSI 150 through 1500

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: Direct operated spring pressure regulator, high rangeability, several membrane materials available, low and high temperature design

  • SAP Pilot Operated: Pilot operated regulators, low minimum regulating pressure, several membrane materials available, single or double seat design

    • SIZES: 1/2” through 10”​

    • RATING CLASS: 150 through 1500

    • BODY MATERIALS: Carbon Steel, Chrome – Moly, Stainless Steel, Most other Alloys

    • END CONNECTIONS: Flanged ANSI 150 through 1500

    • TRIM: Stainless Steel, Most other Alloys

    • FEATURES: Pilot operated regulators, low minimum regulating pressure, several membrane materials available, single or double seat design

Trim Options

  • Alpha: In applications with low and medium intensity cavitation, Alpha trim offers an economical and effective solution to minimize the harmful effects of this condition. The cage trim flow to close design, with staggered and diametrically opposed holes, directs the fluid jets towards the center of the trim and away from metal surfaces. The use of hardened materials limits damage and erosion phenomena.

    • Alpha Trim Offers An Economical Solution To Resolve Low To Medium Cavitation Applications​​

      • NOMINAL DIAMETER: 1” to 16”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: In all globe valve series

      • FLOW DIRECTION: Over the plug

      • LEAKAGE CLASS: V with metal seat, VI with soft seat

      • ​​​TYPE: Special cage trim for severe service on liquid flow

  • Attenuator plate Beta: Using the same principle as the Beta Trim, the Beta attenuator plate is installed downstream of the control valve to reduce overall noise levels on gas applications. Each plate can be designed with up to four drilled-hole stages, providing noise reductions of up to 15 dBA (depending upon the process conditions). The Beta attenuator can be used for liquid flows when a higher counter pressure on valve trim is required to avoid cavitation.

    • ​Beta Attenuator Plates Offer An Inexpensive Alternative To Reduce Noise In Special Gas Applications, or to avoid cavitation in liquid applications

      • TYPE: Beta (Fixed Plate) multistage attenuator trim for gas or liquid flow​

      • NOMINAL DIAMETER: 1”, 5” to 24”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: Inside downstream piping

      • FLOW DIRECTION: Downstream

  • Delta: Multistep-multipath concept trim. Delta effectively reduces the noise produced by gases and liquids and eliminates the effects of cavitation. The cartridge comprises a disk stack with engineered grooves, which forces a series of expansions, contractions and turns of the fluid, thus reducing the pressure gradually.

    • ​Delta Trim Eliminates Cavitation in Fluids And Provides Substantial Noise Reduction In Gas Applications

      • ​TYPE: Multistep – multipath trim for gas and liquid, in flow to open design

      • NOMINAL DIAMETER: 1,5” to 36”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: In all globe valve series

      • FLOW DIRECTION: Under

      • LEAKAGE CLASS: V with metal seat, VI with soft seat

  • Beta: Valves equipped with Beta Trim reduce noise levels in gas applications up to 20 dBA. The trim design incorporates a series of holes in concentric silencers that allows the pressure reduction and gas expansion in stages; which controls velocity and minimizes downstream noise.

    • ​An Economic Trim Alternative to Reduce Noise In Gas Applications Up To 20 dBA

      • ​TYPE: Special trim with multistage silencers in flow to open for gas application

      • NOMINAL DIAMETER: 1” to 24”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: In all globe valve series

      • FLOW DIRECTION: Under the plug

      • LEAKAGE CLASS: V with metal seat, VI with soft seat

  • Gamma: Eliminates the damage caused by cavitation and minimizes hydrodynamic noise even under the most severe liquid applications. The Gamma cartridge is designed to take the total pressure drop through the valve trim in stages, and avoid cavitation throughout the entire path of the fluid in the trim.

    • ​A Multistage Cage Trim to Avoid Cavitation in Liquid Application Under High Pressure Drop

      • ​TYPE: Multistage cage trim for liquid service in flow to close application

      • NOMINAL DIAMETER: 2” to 36”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: In all globe valve series

      • FLOW DIRECTION: Over

      • LEAKAGE CLASS: V with metal seat, VI with soft seat

  • Omicron: Multistep trim prevents damage caused by cavitation, and is applied when applications incur high differential pressures and very low flow rates. The plug head has grooves that extend spirally along its length and intersect several times. The fluid passing through the channels experiences a continuous increase in the passage area, and pressure reduction occurs in stages.

    • Omicron Features​

      • ​TYPE: Multistep trim for microflow applications

      • NOMINAL DIAMETER: 1” to 2”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: In all globe valve series

      • FLOW DIRECTION: Over the plug

  • Omega: Internal trim is designed for applications with liquids experiencing extreme cavitation and low flow rates. Based on the same principles as Gamma internal trim, Omega trim utilizes an internal cartridge containing channels and orifices which is part of the seat-guided plug. The perforated cartridge may contain up to 5 stages for the gradual reduction of pressure. The operating fluid should be clean and free of particles.

    • Omega Features​

      • ​TYPE: Multistep multipath trim for microflow applications

      • NOMINAL DIAMETER: 1” to 2”

      • PRESSURE CLASS: ANSI Class 150 to 2500

      • MATERIALS: A variety of forged steel alloys

      • MOUNTING OPTIONS: In all globe valve series

      • FLOW DIRECTION: Over the plug

​​

​

bottom of page