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Garlock Style 9010‑EVSP

Low‑Emission Compression Packing for Hydrogen Valve Applications

As the hydrogen economy rapidly expands—driven by national energy strategies and stricter global emission requirements—valve sealing technologies must deliver exceptional performance, long‑term stability, and extremely low leakage rates. The Garlock Style 9010‑EVSP Low Emission Compression Packing Ring Set is specifically engineered to meet these critical demands within hydrogen service.

Hydrogen is one of the smallest and most difficult gases to seal, making emission‑tight valve performance essential for safety, environmental compliance, and process efficiency. Style 9010‑EVSP addresses these challenges with its patented cup‑and‑cone design, created to deliver precise compression, stable sealing behavior, and minimal installation variability. This innovative geometry ensures consistent sealing performance across new, aging, or worn valves.

Purpose‑Built for Low Emission & Hydrogen Environments

The Style 9010‑EVSP enables manufacturers and operators to achieve and maintain ISO 15848‑1 AH certification—one of the most demanding global standards for low‑emission valve performance.
Its low‑friction profile reduces actuation torque and energy consumption, making it ideal for modern automated valve systems used in hydrogen production, distribution, and storage.

The packing set integrates diffusion barriers that significantly reduce the passage of small molecules such as hydrogen, enabling very low emission values even under demanding conditions. Multiple retightening cycles are possible due to the combined effect of graphite sealing elements and the cup‑and‑cone wedge mechanism, supporting long‑term operational reliability.

Engineered for Chemically Demanding Hydrogen Processes

Constructed from chemically inert, high‑purity materials, Style 9010‑EVSP performs reliably across the full chemical spectrum of hydrogen applications, including:

Hydrogen electrolysis

Hydrogen blending and distribution

Hydrogen storage, compression, and transport

Process valves in chemical and petrochemical hydrogen environments

TA‑Luft–regulated systems requiring certified low emission sealing

Its design is particularly beneficial where hydrogen is combined with reactive or aggressive media.

Key Benefits for Hydrogen Systems

Patented cup‑and‑cone design ensures precise and repeatable sealing

Very low emissions, meeting top‑tier global standards

Engineered specifically to seal hydrogen, supporting extremely small molecule retention

Low friction, reducing energy consumption and extending actuator life

Enhanced radial expansion, ideal for older or worn valve bodies

Long service life with multiple effective retightening opportunities

Garlock Style 9010‑EVSP | Compression Packing for High-Pressure Hydrogen Valves