Tiger "RCB" Subsea ROV Manual Chain Block

The Tiger ROV compatible chain block is available in various different interface options all in accordance with BS ISO 13628-8:2002 ROV Interfaces on Subsea production systems. Tested and finished in accordance with Annex’s B & K of BS ISO 13628-1:2005:

Available as 3 tonne (single fall of load chain), 6 tonne (2 falls), 8 tonne (3 falls), 10 tonne (3 falls), 15 tonne (5 falls), 20 tonne single head (6 falls) and 30t twin head (10 falls) capacity chain blocks, chained up to project specific heights of lift (HOL) that can be pre-set to meet the exact starting point required within the rigging drawings.

Main Features

Protection and Finish

Critical internal components as well as the load and hand chain are protected by OCP (Organic Compound Protection) finish giving unprecedented long term reliability. Stainless steel fittings are used throughout the hoist. These ensure the initial capital outlay of purchasing the hoist is protected by allowing the statutory inspections and re-certifications to be easier and also help with the overall aesthetics of the hoist being maintained in an “as new” condition. The integrated SS12 chain block is finished in high quality white Akzo Nobel powder coat paint offering excellent additional corrosion protection and a high degree of impact protection. (Data sheets available on request.)

Hydraulic Hot Stab

Working in partnership with Forum Energy Technologies (formerly Perry Slingsby Systems Ltd) Tiger Lifting have designed and built an ISO 13628-8 Fig 20 Type A & B Dual Port Hot Stab Female receptacle that is protected by a full 316 Stainless steel frame handle that has 4 built in connection points for the work class manipulators to hold and operate. This exclusively designed system makes for a well-balanced unit that sits perfectly when installing the unit within the project rigging.  We use high quality dual direction check valves that prevent loss of the hydraulic fluid within the system when the hot stab is removed. These valves have a dual purpose as they ensure the minimal level of contamination to the system from sea water. We incorporate laser cut text for identification of hydraulic adjustments.

QD Direct Drive Couplings

The QD interface is supplied with a female and male ¾ NPT wing series coupler set that provides fast and efficient hydraulic connection, allowing the hoist to be controlled from the deck HPU. The QD interface is complete with the same equipment as the hot stab interface but is far more compact in design for areas with reduced access. The interface is protected by a full 316 Stainless steel frame handle that has 4 built in connection points for the work class manipulators to hold and operate. This exclusively designed system makes for a well-balanced unit that sits perfectly when installing the unit within the project rigging.

Rotary Torque Tool

This interface has been designed to meet the exact requirements of BS ISO 13628-8:2002. These units can be supplied in Classes 1+2 or class 3 giving maximum tooling flexibility whilst only requiring an operational torque of 50Nm to lift 20 tonnes.

D Handle, T-bar or Fishtail Manual Direct Drive

Using the same guard frame as the torque tool interface built from 316L stainless steel giving maximum protection, this option gives a very flexible operator-friendly interface by incorporating a high strength but flexible compliance joint making for a very positive and reliable direct drive mechanism.

Stainless Steel Frame Handle

All the interface options come mounted in a purpose built high strength frames that are constructed using 316L stainless steel bar and tubing, ensuring full compliance with BS ISO 13628-8:2002(E) which gives the manipulators four T-Bar connection positions to hold onto (see below) and these tie in with T slots found in parallel jaw manipulators.  All welds are continuous and all edges sealed to prevent corrosion. Frames have laser cut text for identification of hydraulic adjustments. Frames are painted RAL 2002 orange as per ISO 13628-1 to signify ROV grab point.

Subsea Brake

Developed and designed for Subsea use creating a highly efficient, reliable braking surface for use in the most extreme conditions.

Chain Guides

Specifically designed to guide the load chain safely onto or off the load sheave without snagging or jamming, the fluted chain stripper ensures unrestricted entry and exit of the calibrated load chain.

Hooks

The hooks incorporate Tiger's latest Patent Pending “EZ Check” feature which allows operators and inspection engineers to easily check to see if the hoist has been previously overloaded or shock loaded by simply measuring between the triangle of pop marks.

The drop forged and heat treated alloy hooks are furnished with heavy duty spring latch kits that fully engage into the recessed nose of the hook safeguarding the load when side loading of the latch occurs and offering maximum load security. The swivel hooks are attached to the yoke using high grade nuts & bolts allowing for complete inspection during any statutory inspection or written scheme maintenance. The entire hook fitting has been protected using OCP or stainless steel fixtures and fittings.

Available with hooks that swivel under the full working load limit, to meet relevant standards i.e. AS 1418.2. Also available with spark resistant hooks.

High Performance Premium Grease

Load carrying ability, mechanical stability, corrosion protection, water resistance and increased operating temperature ranges are all improved by the using only the very best lubricant.

Hand Wheel

Recent innovation to meet client requirements saw the addition of a hand wheel on the ROV operated chain blocks to allow for on-deck height of lift adjustments.

Quality Machining

The strong impact resistant gearbox housing is complete with close tolerance fit brass bushing that fully supports the pinion shaft and gears to maintain smooth revolutions whilst under load.

The subsea suitable bearings for top and bottom hook load sheaves are enclosed in drop forged housings assembled with stainless steel fittings.

Hydraulic Specification

Hydraulic Interface: ISO 13628-8 Fig 20 Type A & B Dual Port Hot Stab Female.  Recommended Hydraulic Fluid: Hydraulic Mineral oil AWS 22 or 32 or similar.Hydraulic Supply: 210bar Maximum (via ROV or Deck Powerpack) Guide flow rate 4 to 8 litres per minute. Danfoss 80cc hydraulic motor. Painted Stainless Steel mount frame. Manufacturer Coated Steel motor. Stainless Steel Hydraulics. Stainless Steel fastenings.

Available with Adaptor Components

Drop forged adaptor maintaining maximum strength. 360° Rotation and 180° Pivot for Maximum Flexibility. Tested and certified to 4:1 factor of safety.

Tiger clevis shackle or reevable egg (master) link available for units up to 10t capacity or alternatively the hoist can be customised for alternative fittings for all capacities.

Please see othe Tiger Corrosion Resistant Chain Block SS20 technical sheet for more information about the chain block.

Due to the policy of continual product development, dimensions, weights and specifications may change without prior notice.