Hydraulic Decoking Systems Rotary Joint

The Flowserve Pacific® heavy-duty rotary joint is robustly designed to support the suspended loads experienced in coking units. Its function is to transmit cutting fluid from the stationary hose connection to the drill stem and cutting tool. Flowserve is continually upgrading its rotary joint to accommodate increasingly higher cutting pressure requirements.

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  • Brands:
    Flowserve
  • Applications:
    Petroleum Production and Refining, Decoking
  • Industries:
    Heavy Oil and Upgrading, Delayed Coking
  • Standards:
  • Misc:

Features and Benefits

  • Two flange sizes – The rotary joint is available with 125 mm (5 in) 250 PN (1500 lb) or 400 PN (2500 lb) inlet flanges and with optional 150 mm (6 in) Unibolt® or compact flange connections to match the drill stem connector
  • Cast single-piece gooseneck eliminates welds and reduces corrosion
  • Rotary joint drive options –
    • Air piston motor
    • Hydraulic
    • E-motor (with VFD)
  • Dual Seal
    • Increased reliability with a four-year design life
    • Switching from the primary seal to the secondary seal allows for planned maintenance in the event of a seal failure
    • Simple installation reduces downtime
    • Retrofit option for all Flowserve rotary joints
  • Rotary joint upgrade options
    • Convert packing to seal rings
    • Convert vertical air motor to horizontal motor with right angle gear
    • Upgrade Unibolt coupling to direct connect with drill stem
    • Add second bearing for right angle drive shaft
    • Convert to integral gooseneck and support cage
    • Add rotary joint stiffeners

Operating Parameters

Two models available:

  • Pressures to
    • 205 bar (3000 psi)
    • 430 bar (6230 psi)
  • Speeds of 2 to 17 rpm
  • Rotates 30 m (100 ft) to 45 m (140 ft) drill stem lengths
  • Carries axial hydraulic loads in the magnitude of 190 000 J (140 000 ft-lb) through its main thrust bearing
  • Seals hydraulic pressure against atmosphere

®Unibolt is a registered trademark of Cameron International Corporation

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Sistema de Equipos de Corte de Coke

Flowserve Sistema de Equipos de Corte de Coke - "Una Tradición en Innovación en el Sistema de Equipos de Corte de Coke" (11" x 17")

Decoking System Equipment Innovation Poster

Flowserve Decoking Poster - Innovation from the Global Leader in Hydraulic Decoking (36" x 24")

Equipamentos para Descoqueamento Poster

Flowserve poster de Descoqueamento - "Tradição em Inovação nos Equipamentos para Descoqueamento" (11" x 17")

Equipos de sistemas de descarbonizacion hidraulica

Flowserve Equipos de sistemas de descarbonizacion hidraulica

Hydraulische Decoking-Systeme

Flowserve Hydraulische Decoking-Systeme

Boletim de Equipamento para Sistemas de Descoqueamento Hidráulico

Flowserve Equipamento para Sistemas de Descoqueamento Hidráulico

Оборудование систем гидравлической резки и выгрузки кокса

Оборудование систем гидравлической резки и выгрузки кокса

Decoking System Equipment Innovation Poster

Flowserve Decoking Poster - Innovation from the Global Leader in Hydraulic Decoking (11" x 17")

Hydraulic Decoking System Equipment Bulletin

Flowserve Hydraulic Decoking System Equipment

Isolation and Bleed Valves

Description: Customized decoking ball valves are used to manage cutting water flow to the coke drums and to relieve drum pressure. The valve designs incorporate unique features that provide long life and safe operations.

Hydraulic Decoking Systems Drill Stem

Description: Flowserve threaded drill stems are extremely durable for decoking service with a side load strength four times greater than comparable welded drill stem designs.

Control System

Description: The decoking operating system utilizes state-of the-art programmable controllers, monitoring equipment, and field devices with over 20 years of field-proven design techniques.

Decoking Hose

Description: Flowserve decoking hoses are designed for the harsh environment of the delayed coker. These high-pressure hoses are oil and chemical resistant and feature abrasive-resistant outer covers with multiple layers of wire reinforcement for strength and durability.

Decoking Winch

Description: The decoking winch is specifically designed for use in coke cutting to raise and lower the cutting tool in the coke drums. Several unique features are incorporated to assure safe, reliable operation in the most demanding environments.

Hydraulic Decoking Systems Control Valve

Description: The Flowserve decoking control valve controls the flow from the jet pump with a single valve providing three distinct features: recirculation flow control, pre-fill and full flow to the decoking tool nozzles.

Hydraulic Decoking Systems Crosshead (Free Fall Arrestor)

Description: The crosshead and free fall arrestor unit guides and centers the rotary joint-drill stem-cutting tool assembly in the coke drum. The crosshead is designed to safely absorb all torque loads normally sustained from cutting operations.

Hydraulic Decoking Systems Jet Pump

Description: Built to meet or exceed ISO 13709/API 610 (BB5), latest design, the WIK is a multistage, double-case barrel pump. Its unique low specific speed hydraulics and extra heavy-duty design are especially engineered for reliable service in jet pump decoking services. The WIK is intended for special purpose, unspared, high-power density and extremely arduous conditions.

Hydraulic Decoking Systems AutoShift™ Cutting Tool

Description: The AutoShift combination decoking tool makes remote drum decoking feasible by removing the operator from the cutting deck. Boring and cutting mode shifting is accomplished automatically and safely within the drum by water pressurization and depressurization.

Hydraulic Decoking Systems Coke Drum Monitoring

Description: Flowserve coke drum monitoring systems provide coke cutting personnel with positive confirmation that the coke has been removed and the cutting process can continue. The system can be integrated with the decoking control system for maximum ease-of-use or provided as a stand-alone option.

Hydraulic Decoking Systems Audio Monitoring System

Description: Audio monitoring systems provide critical feedback to operators and are an essential part of remotely operated coke cutting systems from Flowserve.

Hydraulic Decoking Systems Video Monitoring System

Description: Video monitoring systems provide critical feedback to operators and are an essential part of remotely operated coke cutting systems from Flowserve.

Hydraulic Decoking Systems Latching Mechanisms

Description: Flowserve latch mechanisms enable stowing of the crosshead when not in use, providing a safe and practical way to remove tension on the cable and winch.

Hydraulic Decoking Systems Drill Stem Guide and Shroud Assembly

Description: The Flowserve drill stem guide and shroud can accommodate up to 305 mm (12 inches) of overall lateral misalignment. The innovative design rides on the drill stem and fully encloses the cutting tool. It diverts dangerous water flow vertically away from operators in the unlikely event a pressurized cutting tool is retracted from the drum or energized while stowed.

Hydraulic Decoking Systems Tensiometer / Load Cell

Description: The Flowserve compression type tensiometer replaces typical designs used for measuring cable tension. The result is a more practical load measurement system with many safety, operation and maintenance advantages.

Pulley Blocks and Sheaves

Description: 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.

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