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Control Valves

Zero Emission Control Valve - ZEV-R

Mokveld Valves BV

  • Zero fugitive emissions
  • Accurate control and high turndown
  • Integrated actuator (no dynamic packing seals)
  • Single piece body casting (no body/bonnet seal)
  • Low power consumption
  • Diagnostics available
  • Reliable Class VI seat leakage
  • Suitable for bi-directional control

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Description Vendor

The Zero Emission Control Valve is a low power, highly accurate control valve designed to eliminate fugitive emissions and achieve zero external leakage. It features an integrated actuator that removes the need for dynamic packing seals, ensuring compliance with regulations and net-zero Scope 1 GHG protocols. The valve is suitable for various applications including M&R stations, mixing stations, and any control valve use. It offers benefits such as lower weight, reduced GHG emissions, accurate control, low power consumption, and reduced operational costs. Special features include solar-powered solutions, fail action by power pack or UPS, and custom-designed valves for unique applications.

Use Cases

  • M&R stations
  • Mixing stations
  • Any control valve application

Capabilities

  • Available in sizes 6”–24”.
  • Rated ASME Class 150–600.
  • Operates on 48V DC.
  • Requires <400 W during stroking; near-zero power when stationary.
  • Optional solar-powered installation.
  • Fail action via power pack or UPS.
  • Custom-designed valve, trim and cage per application.
  • Electric servo actuator with continuous diagnostics.
  • Low fugitive emission design eliminating external leakage paths.
Mokveld Valves BV Mokveld Valves BV, a Dutch global leader in the development and production of high-quality control and safety valves with a distinguished history dating to 1922, has supplied the first valves for hydrogen applications over 30 years ago, with the company's axial control valves, on-off valves, and check valves currently operating in various H2 applications worldwide. Mokveld announced a long-term frame agreement with Gasunie (the Dutch gas network operator) to supply control valves for Hynetwork's Hydrogen Delivery Stations, part of Gasunie's plans to develop a countrywide hydrogen network in the Netherlands converting existing natural gas pipelines to transport hydrogen, with Mokveld's axial control valves (featuring one-piece body design, streamlined flow path, and high capacity) selected for their pressure-balanced trim and full surround flow enabling energy-efficient electric actuator use. The company's Zero Emission Valve (ZEV-R model), designed to eliminate fugitive emissions and hydrogen-ready, represents a world-first innovation alongside axial check valves (TKZ-Y), axial on/off valves (RZD-X), and axial control valves (RZD-R) offering low fugitive emission tightness class B conformance (ISO 15848-1), fire-safe design, and reliable bi-directional bubble-tight shut-off suitable for hydrogen service. As an active member of CEN TC 69 Working Group 19 (developing European standards for valves and hydrogen), and with the majority of Mokveld's delivered valves conforming to NACE MR0175/ISO 15156 (facilitating conversion of existing natural gas valve applications to hydrogen service), Mokveld continues providing expert engineering assistance for both new hydrogen applications and natural-gas-to-hydrogen service conversions, supporting the safe and efficient European hydrogen network transition alongside its established oil and gas, hydropower, water infrastructure, and carbon capture valve technology business.
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