Pulley Blocks and Sheaves
Pulley Blocks and Sheaves
| Brand: | Flowserve |
|---|---|
| Description: |
Pulley Blocks and Sheaves are critical components used in lifting, hoisting, and rigging systems across industrial, construction, and energy sectors. Designed to redirect or multiply the force of a load, these components are essential for safe and efficient handling of heavy equipment, particularly in vertical motion applications like crane systems, hydraulic decoking winches, and material hoists. Pulley blocks consist of one or more sheaves (grooved wheels) enclosed in a frame, allowing ropes, chains, or cables to move smoothly with minimal friction. Sheaves are available in a variety of sizes, load ratings, and materials, including cast steel, bronze, and composite alloys to accommodate different wire rope diameters and working conditions. Engineered for high load capacity, durability, and minimal maintenance, pulley blocks and sheaves ensure precise load control and reduced stress on winch systems and lifting structures. Whether used in refineries, construction sites, offshore rigs, or manufacturing facilities, these components help ensure safe, reliable load transfer under extreme conditions. |
The lifting mechanism for the drill string utilizes multiple blocks and sheaves built to Flowserve specifications. Multiple sizes and load ratings are available to meet specific unit requirements.
Pulley Blocks and Sheaves Applications
Petroleum Production and Refining, Decoking
- Industries:
Heavy Oil and Upgrading, Delayed Coking
Features and Benefits
The drill stem lift mechanism uses a four-part reeving system of high-strength cable and pulley blocks and sheaves. Both hanging block type pulleys and overhead supported sheaves can be provided. Attachment of blocks to the crosshead and tower structure is achieved through the use of hanger plates which are custom designed for individual applications.
The guide sheave or the crown sheave is available with an adaptation for the system to indicate “in-drum” tool position. This system is compromised of a NEMA 7 box, a local indicator mounted on the hoist console, special probes and drilling on the guide sheave.
Hydraulic Decoking System Equipment Bulletin
Decoking System Equipment Innovation Poster
Ensure safe, smooth, and reliable lifting with our heavy-duty pulley blocks and sheaves. Contact us today to request specs or load rating assistance.