Selection of 21 products among
21
4-20 MA ELECTRONIC TRANSMITTER
This electronic transmitter is a low energy, high-output-load device that gives local analog flow read out on a six-inch scale as well as a linear 4-20 mA signal proportional to the flow rate. For
stand-by operation, the transmitter can easily be connected to operate from a battery option. The transmitter is housed in a NEMA 4 enclosure with a plastic window; a glass window is also available as an accessory. In NEMA 4 general purpose enclosure the transmitter is Factory Mutual approved as intrinsically safe for Class I, Division I, Group A, B, C, and D hazardous locations and dust-ignition proof for Class II, Division I and II, Group E, F and G areas. There is also an FM approved explosion-proof arrangement available for Class I locations and dust ignition proof for Class II areas.
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Wallace & Tiernan
BARLATCH™ FAIRLEAD STOPPER
BarLatch™ Fairlead Stopper
The BarLatch™ Fairlead Stopper is an innovative underwater swiveling fairlead and chain stopper developed specifically for floating production applications.
It is
designed to achieve the best possible chain wear characteristics for successful long term passive mooring.
The principal components are an underwater Pivoting Chain Stopper and a Swiveling Chainwheel or Bending Shoe. It addresses the need to reduce chain wear, when the mooring line is rarely moved, by placing the integral chain stopper outboard of the fairlead.
Depending on the application specific requirement, the BarLatch can be designed as an underwater or deck mounted device. This versatility allows the Bardex engineers to optimize the Mooring System design to suit the customer's exact needs.
When the stopper's latches are engaged, the high line tension is removed from the chain in the vertical leg and around the underwater bending shoe. This produces superior chain life, compared to conventional chainwheels or bending shoe type fairleads.
Patented Worldwide
Product Advantages
The BarLatch Fairlead Stopper, compared to conventional mooring systems, has the following advantages:
Greatly reduces the relative motion between the last link contacting the fairlead (restrained from moving) and the link exiting the fairlead
By latching the links outboard of the fairlead, it eliminates chain wear due to twisting of links in the vertical leg of the mooring line where links contact the chainwheel while under tension
Minimizes link sliding interaction in a lateral direction resulting from platform yaw or weathervaining.
Reduces main deck foundation costs by incorporating the chain stopper (rated at or beyond the chain break strength) with the underwater fairlead.
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Bardex (UK) Ltd
METAL-TUBE VAREA-METER
Available in a variety of tube sizes (1/2, 3/4, 1, 1-1/2 and 2 inches) and flange facings and ratings, these metal-tube rotameters give reliable flow measurement over a 10:1 range for aggressive
fluids at high temperatures and pressures. (See page 2 for pressure and temperature limits.) Metering accuracy is 2% of full scale (1% with custom calibration). Available options include a 4-20 mA output flow signal and high/low alarm switch. Flanges available have ANSI 150-, 300-, and 600- lb. ratings. Flanges are raised, flat, large female, tongue-and groove, or ring-joint face. The standard tube-and-float material is 316 stainless steel. A Hastelloy C float is also available. The magnetic indicator has a 6-inch scale. Percent of maximum flow is the standard calibration; gpm water, scfm air, or special graduations are optional.
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Wallace & Tiernan
RESTRAINING & LEVELING SYSTEMS
Restraining & Leveling Systems
Bardex Restraint Systems for applications on offshore platforms are installed to stabilize and secure the drilling facilities during major seismic events or high wind
loadings. These systems have been installed in seismically active areas such as Sakhalin Island, Russia, and the Caspian Sea.
A typical Bardex Restraint System includes Vertical and Horizontal (loads transverse to skid direction) Restraints and a locked Gripper Jack Assembly (load in-line with skid direction). Bardex has supplied systems to withstand simultaneous seismic loadings exceeding 1500 tonnes in all three axes.
The complete Bardex system includes a free standing control console and remote-mounted programmable logic controller.
The Vertical Restraint shown here (See A / B) is installed by bolting to the rig footing. The hydraulic cylinder engages a wedge block between the underside of the skid flange and the Vertical Restraint side palte. Once the wedge is engaged the rig is restrained from moving in the vertical direction.
The Horizontal Restraint (see C) is locked by engaging the wedge block between the backing structure on the footing and the edge of the skid beam flange. Once the wedge is engaged, the rig is restrained from moving in the trasverse direction (perpendicular to the direction of rig skidding).
In both the Vertical and Horizontal Restraint, the wedges, once engaged do not require hydrualic pressure to remain locked. The Restraints are released by actuating the hydraulic cylinders.
After the rig is skidded to the appropiate location, the Gripper Jack Assembly is used to restrain horizontal motion parallel to the direction of skidding. The Gripper JAck Assembly can be equipped with either an accumulator or a mechanical device to maintain Gripper clamping force after the hydraulic pressure is released at the control station.
In some cases, due to sea floor subsidence or structual deflections, a rig leveling system is required. Leveling Cylinders (see D) are typically mounted at each drill floor / substructure foor or each skid base foot to level the drilling rig. Lifting capacities in excess of 1500 tonnes per foot have been provided by Bardex. An alternative is the Levelock Gripper jack.
The complete Bardex system includes all controls to operate Skidding, Leveling and Restraining Systems in a safe and efficient manner. A range of controls from simple manual controls to PLC based systems can be provided based on the customer's requirements.
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Bardex (UK) Ltd
