ANSI B16.5 Flange

These are Brass Slip-On Pipe Flanges—a widely-used piping fitting for joining pipes, valves, or equipment in fluid systems. Their key structure includes a hollow central bore (intended to slide over pipe ends for secure fixing like welding) and evenly distributed bolt holes around the flange face, enabling tight, leak-resistant connections when paired with gaskets and fasteners.

Brass Slip-On Pipe Flange

Brass Slip-On Pipe Flange

These are Brass Slip-On Pipe Flanges—a critical piping fitting used to connect pipes, valves, or equipment in fluid systems. They feature a hollow central bore (designed to slide over pipe ends for welding/securing) and evenly spaced bolt holes around the flange face, which allows tight, leak-proof assembly when paired with gaskets and fasteners.

Brass Slip-On Pipe Flange

Brass Slip-On Pipe Flange

These are Brass Blind Flanges—a piping fitting designed to seal the open terminal end of a pipeline system. They feature a solid, disc-like structure with evenly arranged bolt holes around the edge, allowing them to be firmly fastened to compatible flanges for leak-proof closure.

Brass Blind Flanges

Brass Blind Flanges

These are Brass (or Brass-Plated) Blind Flanges—a piping component designed to seal the open end of a pipeline system. They feature a solid, flat disc structure with evenly spaced bolt holes around the edge, which allows them to be securely fastened to matching flanges for leak-proof closure.

Brass-Plated Blind Flanges

Brass-Plated Blind Flanges

A Flat Face (FF) Flange is a type of piping flange with a flat sealing surface, designed to mate with another flat-faced flange (or a flange with a matching surface). It’s commonly used in low-pressure, non-critical applications (e.g., water, air systems) to connect pipes, valves, or equipment. Standards (like BS 4504/EN 1092, ASME B16.5) define its dimensions (bolt holes, diameter, thickness) and pressure ratings (e.g., PN16, Class 150).

Flat Face Flange

Flat Face Flange

This image shows a batch of polished brass blind flanges, stacked on a piece of white protective paper in a workshop setting. Each flange features a golden, smooth surface with evenly spaced mounting holes around the edge, and a solid disc structure (no central opening). As pipeline fittings, these blind flanges are used to seal or cap the end of pipe sections, commonly applied in low-pressure systems (e.g., water supply) for pipeline termination or maintenance.

Batch of Brass Blind Flanges 英文描述简述

Batch of Brass Blind Flanges 英文描述简述

This image displays a large, heavy-duty stainless steel flat flange, situated in a workshop environment. It features a polished metallic surface with numerous evenly spaced mounting holes around its edge, and a wooden board is placed inside the flange (likely for protection). In the background, wrapped batches of similar components are visible. As a large-diameter pipeline fitting, this flange is designed for heavy industrial pipe connections (e.g., in petrochemical or energy systems), providing a secure se

Large Stainless Steel Flat Flange (Heavy-Duty)

Large Stainless Steel Flat Flange (Heavy-Duty)

This image shows a black plastic flat flange, which has evenly spaced mounting holes around its edge and multiple circular sealing grooves on the inner surface. It is placed on a textured light-colored backing material. As a corrosion-resistant pipeline fitting, this component is mainly used for low-pressure pipe connections (such as water supply systems), and the internal sealing grooves are designed to improve the tightness of the pipe joint.

Black Plastic Flat Flange with Sealing Grooves

Black Plastic Flat Flange with Sealing Grooves

This image shows a black flat flange, featuring a circular structure with multiple evenly spaced mounting holes around its edge. It is placed on a textured light-colored backing material. As a pipeline fitting, this flange is typically used for connecting or sealing pipe sections, and its black surface (likely a protective coating) may provide corrosion resistance for industrial or plumbing applications. 法兰的安装孔有什么作用？法兰的材质对其性能有哪些影响？如何选择适合的法兰尺寸？

Black-Coated Flat Pipe Flange

Black-Coated Flat Pipe Flange

This image displays a brass flat flange held by a hand, with technical specifications (S400, PN16, 8", 2531) engraved on its side. The flange has a polished golden-brass surface and a flat, hole-equipped structure. It is a standardized low-pressure pipeline fitting (rated for 1.6MPa), designed for 8-inch diameter pipe connections in systems like water supply or HVAC. The engravings denote its size, pressure rating, and batch details.

Brass Flat Flange with Sizing Engravings

Brass Flat Flange with Sizing Engravings

This image shows a small brass threaded flat flange held in a hand. It features a golden-brass surface with fine machining textures, an internally threaded central hole, and four evenly distributed mounting holes around it. The flange is placed against a textured gray background, presenting a compact, precision-manufactured appearance—it’s a hardware fitting for small-diameter pipeline connections.

Brass Threaded Flat Flange

Brass Threaded Flat Flange

This image displays a batch of metal weld neck flanges. They are stacked in bulk, with some wrapped in protective plastic film to preserve the surface. Each flange is structured with a neck (for pipe welding) and evenly spaced mounting holes on the disc, showing a neat, precision-machined industrial appearance. These components are widely applied for pipeline connections in sectors like petroleum, chemical engineering and power systems.

Weld Neck Flange

Weld Neck Flange

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