Gate Valve

What Are Gate Valves?

Gate valves are linear-motion industrial valves designed primarily for on-off isolation service. A flat or wedge-shaped gate moves perpendicular to the flow path, rising out of the flow stream when the valve is fully open to provide an unobstructed full-bore passage. This design results in minimal pressure drop across the valve — making gate valves the preferred choice for pipeline applications where flow resistance must be kept as low as possible.

Available through the Honiks sourcing network, gate valves are supplied in standard and bellow seal configurations. Standard gate valves with bolted bonnets and wedge-type gates serve general industrial isolation needs. Bellow seal gate valves add a multi-ply metallic bellow assembly around the stem to eliminate external leakage, making them suitable for emission-controlled service where even the small stem leakage of a packed gate valve is unacceptable.

Gate valves sourced by Honiks cover sizes from DN50 to DN1000 in EN/DIN standards and from 2 inch to 16 inch in ANSI standards. For forged small-bore gate valves, the range extends down to 1/2 inch for high-pressure ANSI applications. Both flanged and butt-welded connection options are available, with pressure ratings up to PN100 for EN/DIN products and Class 1500 for ANSI products.

EN/DIN and ANSI Gate Valves

EN/DIN gate valves: DN50-DN1000, PN16-PN100. Manufactured to relevant EN standards with EN1092-1 flanged or butt-welded connections. ISO 5210 top flange available for actuator adaptation on larger sizes.
ANSI gate valves: 1/2 inch-16 inch, Class 150-Class 1500. Manufactured to ANSI B16.5, ANSI B16.25 and ANSI B16.10. API 600 provides relevant design guidance for cast steel gate valves. Forged gate valves in ANSI Class 150-1500 are available for small-bore high-pressure service.

Standard vs Bellow Seal Gate Valves

Standard gate valves use compression packing with a bolted gland to seal the stem. This is the most common and economical configuration for general industrial isolation service where the occasional gland adjustment or repacking is not a concern.

Bellow seal gate valves incorporate a welded bellow assembly that provides the primary stem seal. This eliminates fugitive emissions at the stem and reduces maintenance intervals. A secondary packing ring remains in place as an emergency backup. Bellow seal gate valves are specified for hazardous media, high-temperature thermal oil, steam systems, and any application governed by strict emission control requirements.

Materials

Gate valves sourced through Honiks are available in carbon steel (A216 WCB), alloy steel (A217 WC6) and stainless steel (A351 CF8M). Wedge and seat materials are selected according to the service medium and can include 13Cr, Stellite overlay, or other hard-facing options. Working temperature and pressure ratings are material-dependent and should be confirmed against the applicable standard.

Why Source Gate Valves Through Honiks?

Honiks Valve works as a valve supply partner, a factory-backed valve supplier. We connect international buyers with qualified Chinese factories capable of producing gate valves to the required standard, size and material specification. Our scope covers supplier qualification, documentation coordination, quality inspection support and export logistics — helping procurement teams reduce sourcing time and complexity when purchasing industrial gate valves from China.