Specification

DN25~DN300 PN1.0~1.6 API 6D SS316/CF3M Flanged Plug Valve

I. Product Overview

NEWWAY API 6D plug valve is a high-performance flow control solution engineered for medium to high-pressure industrial systems. Crafted with stainless steel (SS316, CF3M, CF8M) and cast steel (WCB), it features a quarter-turn plug design and flange connection to ensure tight shut-off and flow regulation of water, steam, oil, and gas. Operating at -30℃~350℃ and PN1.0~1.6MPa, it combines metal-to-metal hard sealing with API 6D compliance to balance durability and precision. Ideal for oil & gas, chemical processing, power generation, and water treatment, it addresses the need for reliable shut-off in systems where leakage risks or flow direction control are critical.

II. Key Attribute Parameters

Size Range: DN25~DN300 (1″~12″), covering small to large-diameter pipelines for diverse flow control needs.

Pressure Range: PN1.0~1.6MPa (10~16bar), suitable for medium-pressure systems such as natural gas lines and steam auxiliary pipelines.

Temperature Range: -30℃~350℃, with stainless steel (SS316/CF3M) retaining toughness in low temperatures and resisting oxidation at high temperatures.

Material Configuration:

Body & Bonnet: SS316 (corrosion resistance), CF3M (low carbon stainless steel for welded systems), CF8M (general corrosive media), WCB (cast steel for non-corrosive applications).

Plug: SS316/CF3M, precision-machined to match the valve body’s sealing surface for tight shut-off.

Seal: Metal-to-metal hard sealing (surface hardness ≥HB250), ensuring leak-tightness under pressure and temperature fluctuations.

Packing: Graphite + stainless steel, preventing stem leakage and withstanding high temperatures.

Actuation: Manual (quarter-turn handwheel), enabling quick on-off operation (90° rotation).

Connection Type: Flange (per ASME, DIN, JIS standards), ensuring secure integration with pipeline flanges.

Design Standards: API 6D, ASME, ASTM, ensuring compliance with global industrial and safety specifications.