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greenhouse vegetables Hydroponic Tomatoes Maximizing yields from hydroponic tomato crops has long been the main objective of commercial growers. However, there’s growing consumer pressure to produce high-quality, great-tasting fruit that stores and handles well in the retail sector. By Lynette Morgan T Top: Properly grown hydroponic tomatoes are often ﬁt to be framed; Bottom: This single-truss crop is being grown on greenhouse benches in NFT. (Photos courtesy of Lynette Morgan) Hydroponic Resource Are you looking to grow more greenhouse vegetables or growing hydroponically? GPN will bring you a few articles a year, but if you want in-depth information year-round, research such as this can be found in The Growing Edge magazine. It is a great resource for hydroponic growers. Visit www.growingedge.com or call (800) 888-6785 for subscription and other information. 78 GPN October 2003 omatoes, the biggest hydroponically produced crop on a worldwide scale, are complex in their physiology and response to crop management techniques since vegetative growth, ﬂowering and fruiting all need to be continually maintained simultaneously on the plant. Obtaining economic yields of highquality fruit while minimizing the use of pesticides and other agrichemicals has put commercial tomato growers under increasing pressure, and many are now looking to modiﬁed hydroponic systems where higher proﬁts are possible. Many of these new tomato-growing techniques involve the production of “spray-free” crops and using organically based systems. Today’s selection includes a wide range of new, fresh tomato products, such as lowacid fruit; on-the-truss, cluster or vine-ripened fruit; and many new....
NOTES • are must be taken during customer installation of equipment and wiring C to ensure that all holes drilled in the body are corrosion protected, properly sealed and that vehicle wiring harnesses, piping or other components have not been displaced or damaged. Aftermarket equipment installers must be mindful of applicable Federal Motor Vehicle Safety Standards. This information can be obtained directly from the National Highway Traffic Safety Administration. • These vehicles are equipped with an air bag system. The air bag system in your police vehicle includes front seat back, front knee and side curtain air bags. Customer installed equipment such as security barriers behind the front seats should not be mounted so that the barrier ends are within the side air bag deployment zones. The sensors and other components for the air bag system must not be relocated to accommodate the installation of customer furnished equipment; please refer to the service manual for sensor and other component locations. For information concerning instrument panel top pad mounted equipment and air bag system deployment zones, see the air bag information section in this catalog. • This catalog is not updated during the model year and should not be
Barb’s Harley-Davidson started out in 1986 with only 7 employees. With a lot of hard work and dedication, Barb has grown it in to a company with over 50 employees. Barb’s has a complete service department with over 10 full-time factory trained technicians and one can be sure to be greeted in their pressure free environment. Visit: http://www.barbshd.com.
Sony Alpha a7R Mirrorless Digital Camera-Body Only available for just £1,399.00 from Tip Top Electronics UK with fast shipping.Differing from the full-frame Sony Alpha a7, the Alpha a7R omits the low-pass filter from its 36.4MP sensor, thus optimizing its high resolution, detail-rich imaging capability.
INSTRUCTION MANUAL ANGLE GRINDER MODEL: D28108-XE, D28127-XE, D28128-XE, D28154-XE SAFETY INSTRUCTIONS When using power tools, always observe the safety regulations applicable in your country to reduce the risk of fire, electric shock and personal injury. Read the following safety instructions before attempting to operate this product. Keep these instructions in a safe place. General 1. Keep work area clean. Cluttered areas and benches can cause accidents. 2. Consider work area environment. Do not expose power tools to high humidity or rain. Keep work area well lit. Do not use power tools in the presence of flammable liquids or gases. 3. Guard against electric shock. Prevent body contact with earthed surfaces (e.g. pipes, radiators, cookers and refrigerators). 4. Keep children away. Do not let children come into contact with the tool or extension cord. Keep all people away from the work area. 5. Extension cords for outdoor use. When the tool is used outdoors, always use extension cords intended for outdoor use and marked accordingly. 6. Store idle tools. When not in use, power tools must be stored in a dry place and locked up securely, out of the reach of children. 7. Dress properly. Do not wear loose clothing or jewellery. They can be caught in moving parts. Preferably wear rubber gloves and non-slip footwear when working outdoors. Wear protective hair covering to keep long hair out of the way. 8. Wear safety goggles. Also use a face or dust mask in case the operations produce dust or flying particles. 9. Be aware of maximum sound pressure. Take appropriate measures for the protection of hearing if the sound pressure of 85dB(A) is exceeded. 10. Secure workpiece. Use clamps or a vice to hold the workpiece. It is safer and it frees both hands to operate the tool. 11. Do not overreach. Keep proper footing and balance at all times. 12. Avoid unintentional starting. Do not carry the plugged-in tool with a finger on the switch. Be sure that the switch is released when plugging in. 13. Stay alert. Watch what you are doing. Use common sense. Do not operate the tool when you are tired.
POWER TOOLS RANGE CATALOGUE 2011-12 DRILLS GRINDERS HAMMERS CORE CUTTERS DRIVERS/WRENCHES CHOP SAWS GUARANTEED TOUGH. TM WOODWORKING CORDLESS Power Tools Range 2011-12 DRILLS DWD010 - 6mm Rotary Drill DWD014 - 10mm VSR Drill POWER: 380 W CHUCK CAPACITY: 1 - 6.5 MM POWER: 550 W METAL: 6.5 MM SPEED: 0-2800 RPM DRILLS WOOD: 15 MM SPEED: 0-3600 RPM WEIGHT: 1.16 KG DWD016 - 10mm VSR Drill D21101 - 13mm VSR Drill DRILLING CAPACITY: STEEL:10 MM WOOD: 25 MM WEIGHT: 1.3 KG D21520 - 13mm Mixer & Rotary Drill POWER: 380 W POWER: 650 W POWER: 710 W SPEED: 0-2600 RPM SPEED: 0-850 RPM SPEED: 0-550 RPM DRILLING CAPACITY: STEEL:10 MM DRILLING CAPACITY IN STEEL:13 MM DRILLING CAPACITY IN STEEL:13 MM WOOD: 20 MM WOOD: 35 MM WOOD: 100 MM WEIGHT: 1.3 KG WEIGHT: 1.9 KG WEIGHT: 3.4 KG DWD022 - 10mm Impact Drill DWD024 - 13mm Impact Drill D21720 - 13mm Two Speed Impact Drill POWER: 650 W POWER: 550 W POWER: 650 W SPEED: 0-1100/0-2600 RPM SPEED: 0-2800 RPM SPEED: 0-2800 RPM DRILLING CAPACITY IN STEEL:13 MM DRILLING CAPACITY: STEEL:10 MM CAPACITY IN STEEL: 10 MM CONCRETE:16 MM WOOD: 25 MM WOOD: 30 MM WOOD:40/25 MM WEIGHT: 1.4 KG WEIGHT: 1.6 KG WEIGHT: 2.1 KG SMALL ANGLE GRINDERS DW801 - 100mm Angle Grinder DW810 - 100mm Angle Grinder POWER: 850 W GRINDERS POWER: 680 W SPEED: 11000 RPM SPEED: 11000 RPM MAX. DISC DIA.: 100 MM MAX. DISC DIA.: 100 MM EXTERNAL BRUSH ACCESS EXTERNAL BRUSH ACCESS WEIGHT: 1.8 KG WEIGHT: 1.8 KG GUARANTEED TOUGH. TM 1 Power Tools Range 2011-12 SMALL ANGLE GRINDERS DW803 - 100mm Angle Grinder DW831 - 125mm Angle Grinder D28112X - 100mm Angle Grinder POWER: 1000 W SPEED: 10000 RPM POWER: 1050 W MAX. DISC DIA.: 100 MM SPEED: 10000 RPM POWER: 1400 W EXTERNAL BRUSH ACCESS MAX. DISC DIA.: 100 MM SPEED: 10000 RPM WEIGHT: 1.8 KG WEIGHT: 1.9 KG WEIGHT: 2.7 KG LARGE ANGLE GRINDERS D28135 - 125mm Angle Grinder D28491 - 180mm Angle Grinder D28413 - 180mm Angle Grinder POWER: 1400 W POWER: 2000 W POWER: 2200 W SPEED: 10000 RPM SPEED: 8500 RPM SPEED: 8500 RPM MAX. DISC DIA: 125 MM MAX. DISC DIA.: 180 MM MAX. DISC DIA.: 180 MM WEIGHT: 2.0 KG WEIGHT: 4.6 KG WEIGHT: 4.7 KG D28414 - 230mm Angle Grinder D28495 - 180mm Angle Grinder D28476 - 180mm Angle Grinder POWER: 2200 W POWER: 2400 W POWER: 2700 W SPEED: 6500 RPM SPEED: 8500 RPM SPEED: 8500 RPM MAX. DISC DIA.: 230 MM MAX. DISC DIA.: 180 MM MAX. DISC DIA.:180 MM WEIGHT: 4.7 KG WEIGHT: 5.6 KG WEIGHT: 5.6 KG SANDER POLISHER DIE GRINDER DW849X - 7”/9” Electronic Sander & Polisher D28409 - 180mm Sander DW887 - Heavy Duty Die Grinder POWER: 400W POWER: 1250 W SPEED: 25000 RPM SPEED: 0-600/3500 RPM POWER: 2200 W MAX. DISC DIA.: 180 MM SPEED: 5000 RPM COLLET: 6.35/MIN. SPINDLE THREAD: M14 MAX. DISC DIA.: 180 MM PADDLE SWITCH WITH LOCK-ON WEIGHT: 3 KG WEIGHT: 4.7 KG WEIGHT: 1.2 KG GUARANTEED TOUGH. TM
Valued Customer, We are pleased that you have chosen to purchase an electric fireplace manufactured by Dimplex North America Ltd.Over the years, valuable memories will occur around the warmth and comfort of your hearth. Thank you for allowing our product to be the backdrop for those special moments. 7207500100REV05 QUICK REFERENCE GUIDE FOR THE DIMPLEX ELECTRIC FIREPLACE 1. Prior to the first use of the fireplace verify the following: • Are the circuit breakers for the socket the unit uses on? • Are the light bulbs in your fireplace loose? (to check, follow the instructions for replacing the light bulbs under the maintenance section of this manual) 2. The heater on your fireplace may emit a slight, harmless odor when first used. This odor is a normal condition caused by the initial heating of internal heater parts and will not occur again. 3. The information regarding the model of your fireplace can be found on the rating plate. See Page 2 for location. 4. If you have any technical questions regarding the operation or service of your fireplace have your Model and Serial Number ready, and contact Dimplex North America technical support at 1-888-DIMPLEX (1-888-346-7539) before returning the product to the point of purchase.
DuPont™ Vespel® CR-6100 APPLICATION AND INSTALLATION GUIDE FOR CENTRIFUGAL PUMP STATIONARY WEAR PARTS Fluid processing industries have embraced the use of composite materials in pumps to reduce vibration, increase mechanical seal life and MTBR (mean time between repair), reduce the risk of seizure, increase efficiency, and reduce repair costs. API 610, 10th Edition (ISO standard 13709), the latest centrifugal pump standard from the American Petroleum Institute (API), recognizes the use of composites to achieve these benefits. The function of wear rings Wear rings are installed with close radial clearances and separate rotating and stationary, higher and lower-pressure sections of a pump. When shaft deflection occurs due to off-design operation, Background wear rings can experience contact. Historically, wear rings have The CR-6100 grade of DuPont Vespel parts and shapes is a been made from metal, which can gall and seize the pump composite material consisting of carbon fibers held in a Teflon® under contacting or run-dry conditions, resulting in abrupt, high- fluorocarbon resin matrix (PFA/CF Reinforced Composite, energy pump failure. With metal wear rings, design clearance 20 wt% random x-y oriented carbon-fiber). Vespel® CR-6100 has is increased to prevent failure, which has a negative effect on been installed in thousands of pumps in refineries, chemical efficiency, suction conditions, and overall pump vibration. Vespel® plants, power plants, and other fluid processing facilities since CR-6100 can be installed with reduced clearances, without 1996. It has replaced metal and other composite materials used increasing the risk of seizure while improving pump performance.
Pumps Factsheet D AY I N. D AY O U T.™ 2- to 15-HP Straight Centrifugal Pumps Continuous-duty pumps have a close-coupled design and enclosed impeller, for dependable, highvolume service. 4-position discharge ports rotate in 90° increments, with vent and easy-access drain plugs for all positions. Type 21 mechanical seal and O-ring casing seal. Replaceable case wear ring prevents casing wear. Max. case inlet pressure: 100 psi. 4ZA35 2 HP straight centrifugal pump constructed of cast iron with a bronze impeller. Dayton products are available at Grainger. There are many ways to get the Dayton products you need — phone, fax, online at grainger.com/dayton or stop by your local Grainger® branch. A Tradition of Performance, Reliability and Value. 2- to 15-HP Straight Centrifugal Pumps Uses: For liquid and chemical transfer, heating and cooling, recirculation, booster service, and other industrial and agricultural applications. • 3450 RPM motor with TEFC enclosure • Cast Iron and Naval Bronze pumps have Buna • Single-phase motors have stainless steel shafts NOTE: Pumps are not self-priming. For use only with nonflammable materials compatible with pump materials. N seals; stainless steel pumps have Viton seals and O-rings CAST-IRON HOUSING, BRONZE IMPELLER, 40° TO 180° F NPT PORT SIZE (IN.) HP PHASE ...
When to use a Positive Displacement Pump When to use a centrifugal or a Positive Displacement pump (“PD Pump”) is not always a clear choice. To make a good choice between these pump types it is important to understand that these two types of pumps behave very differently. Performance Flow rate versus pressure 250 Head Feet By looking at the performance chart to the right you can see just how different these pumps are. The centrifugal has varying flow depending on pressure or head, whereas the PD pump has more or less constant flow regardless of pressure. 200 150 Positive 100 Centrifugal 50 0 0 50 100 150 Capacity GPM Flow rate versus viscosity Percent Another major difference between the pump types is the effect viscosity has on the capacity of the pump. You will notice in the flow rate chart how the centrifugal pump Flow Rate loses flow as the viscosity goes up but the PD pump’s flow actually increases. This is because 100% the higher viscosity liquids fill the clearances of 90% the pump causing a higher volumetric 80% efficiency. Remember, this chart shows only the Positive 70% effect of viscosity on the pump flow; when there Centrifugal 60% is a viscosity change there is also greater line 50% loss in the system. This means you will also 40% have to calculate the change in pump flow from 0 100 200 300 400 500 the first chart for this pressure change. Viscosity cSt...