Special Application Valve

We offer a range of special application valves designed for precision, safety, and reliability in demanding conditions. Our portfolio includes Rising Stem Ball Valves (RSBV), Dual Expanding Double Block & Bleed Plug Valves (DBBV Plug), Axial Flow Valves (AXV), and Globe Control Valves, engineered for liquids, gases, and steam. Built for durability and leak-proof performance, these valves optimize system control and efficiency across industries such as oil & gas, chemical processing, and power generation.

RAISING STEM BALL VALVE (RSBV)



  • Engineered the rising-stem, non-contact sealing mechanism that prevents ball-seat friction, dramatically extending cycle life and minimizing maintenance.
  • Maintained precision alignment and stem lift tolerances to ensure reliable sealing even under high pressure, fluctuating temperature, and mechanical stress.
  • Designed solutions for extreme temperature ranges (cryogenic to high-temperature) by selecting proper materials, coatings, and stress-relief design features.
  • Mitigated erosion and abrasion from particulate or dirty service by optimizing flow geometry and choosing hard-facing or wear-resistant materials.
  • Enhanced frequent-cycle performance for molecular-sieve switching, gas-processing units, and refinery isolation service.
  • Achieved compliance with API, ASME, and fugitive-emission standards through improved stem-packing design, fire-safe configuration, and pressure testing.


Size:                              1“ ~ 36“ (DN25 ~ DN900) / up to 72“ (DN1800) on request

Bore:                              Full or Reduced (Full bore is piggable)

Pressure:                      150# ~ 2500# (PN20 ~ PN420)

Directionality:            Uni or Bi-directional

Temperature range: -196°C ~ 538°C

Design:                          API 6D, ASME B16.34, AD2000

Face to Face Dim:       API 6D, ASME B16.10

Valve Ends:                   ASME B16.5, B16.25, B16.47

Fire Safe:                       ISO 10497, API 6FA, BS 6755

Fugitive Emission:     ISO 15848, TÜV, Shell MESC SPE 77-312

Testing:                          API 598, API 6D, ISO 5208, FCI

Topworks:                     ISO 5210

   

DAUBLE BLOCK & BLEED PLUG VAVLE (DBBV)

  • Supported development of the dual-expanding slip system capable of delivering 100% mechanical upstream and downstream isolation in a single valve.
  • Improved slip expansion/retraction geometry to reduce seat wear, avoid galling, and maintain consistent sealing over thousands of cycles.
  • Addressed complex alignment requirements of the plug, bushings, and dovetail mechanism to ensure symmetric sealing forces and prevent seal deformation.
  • Designed safe cavity-bleed, venting, and thermal-relief paths to support critical isolation in hydrocarbon, chemical, and high-pressure applications.
  • Reduced installation footprint by replacing traditional two-valve DBB configurations with a compact DBBV solution, improving safety and reliability.
  • Ensured material compatibility and long-lasting sealing performance in corrosive, abrasive, or high-temperature applications.

Size:                              1“ ~ 36“ (DN25 ~ DN900) / up to 72“ (DN1800) on request

Bore:                              Full or Reduced (Full bore is piggable)

Pressure:                      150# ~ 2500# (PN20 ~ PN420)

Directionality:            Uni or Bi-directional

Temperature range: -196°C ~ 250°C

Design:                          API 6D, ASME B16.34, AD2000

Face to Face Dim:       API 6D, ASME B16.10

Valve Ends:                   ASME B16.5, B16.25, B16.47

Fire Safe:                       ISO 10497, API 6FA, BS 6755

Fugitive Emission:     ISO 15848, TÜV, Shell MESC SPE 77-312

Testing:                          API 598, API 6D, ISO 5208, FCI

Topworks:                     ISO 5210

   

AXIAL FLOW CONTROL VALVE

  • Engineered axial-flow internals designed for stable fluid dynamics, minimizing turbulence, cavitation, and pressure-drop induced vibration.
  • Developed multi-stage anti-cavitation trims, diffusers, and flow cages to address high differential pressure in gas, liquid, and multiphase services.
  • Improved control accuracy across wide operating ranges through optimized trim geometry and actuator-response tuning.
  • Reduced noise and vibration by employing flow-staging and aerodynamic damping designs suited for high-velocity gas pipelines.
  • Selected erosion-resistant and corrosion-resistant materials for service involving solids, aggressive chemicals, or sustained high-velocity flows.
  • Ensured easy maintenance and trim replacement through modular internal components designed for field servicing.

Size:                               2“ ~ 36“ (DN25 ~ DN750)

Pressure:                      150# ~ 1500# (PN20 ~ PN250)

Directionality:            Uni-directional

Temperature range: -196°C ~ 350°C

Design:                          ASME B16.34

Face to Face Dim:       ASME B16.10

Valve Ends:                   ASME B16.5, B16.25, B16.47

Fugitive Emission:     ISO 15848, TÜV, Shell MESC SPE 77-312

Testing:                          API 598, API 6D, ISO 5208, FCI

Topworks:                     ISO 5210

   

GLOBE CONTROL VALVE

MECHENTRA supplies Globe Control Valves are designed for a variety of application such as cavitation, noise, vibration, etc. These valves are used for regulating and throttling the flow to achieve required flow capacity and pressure drop. Control valves can be used proportional and open/closed. It has different types of cage and plug. We have tie up world class globe control valves manufacturer who can help solve an array of application needs from big to small, hot to cold, general to severe. Our globe control valves have a selection of valve cages or plugs that can be interchanged to modify the inherent flow characteristic to linear, equal percentage, or quick opening to meet capacity demands from 0.0001 Cv up to 12,000 Cv.

Size:                              1“ ~ 30“ (DN25 ~ DN750)

Pressure:                      150# ~ 1500# (PN20 ~ PN250)

Directionality:            Uni-directional

Temperature range: -196°C ~ 350°C

Design:                          ASME B16.34

Face to Face Dim:       ASME B16.10

Valve Ends:                   ASME B16.5, B16.25, B16.47

Fugitive Emission:     ISO 15848, TÜV, Shell MESC SPE 77-312

Testing:                          API 598, API 6D, ISO 5208, FCI

Topworks:                     ISO 5210

   

Why Choose Our Special Application Valves?

  • Wide range covering Rising Stem Ball Valves (RSBV), Dual Expanding Double Block & Bleed Plug Valves (DBBV Plug), Axial Flow Valves (AXV), and Globe Control Valves
  • Durable designs engineered for high pressure, extreme temperatures, and corrosive environments
  • High reliability to ensure leak-proof operation and process safety
  • Suitable for diverse industries including oil & gas, chemical processing, power generation, and petrochemicals
  • Expert guidance for valve selection, installation, and maintenance

Our special application valves are engineered for critical performance, precise flow control, and maximum operational safety in demanding environments.


✔ Fast delivery available
✔ Compatible with leading brand
✔ Cost-effective alternatives available