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This couplings available where moderate pressures are expected or weight considerations are a factor. This ‘s couplings are designed with cross-ribbed construction to provide strong component for pressure piping systems and usually used in fire protection, feed water, oil or gas and etc.ApplicationPower plantHeating, ventilation and air conditioningIndustrial plantWater treatmentPlumbingFire protectionMining and mine processingOil fieldMarineCharacteristicsReduced installation costsEasy to assemble, no special training required.Less installation equipment required.Can be installed in a limited space.Free welding, no pollution.Installation cost is low and can be budgeted.Flexibility and rigidityThe flexible couplings allow expansion, contraction and deflection because of the changing temperature.The rigid couplings can provide the connection as well as welding.Joint reliabilityThe couplings engage with the whole circumference of the pipe to prevent the pipe end from falling off within the maximum allowable rated working pressure of the couplings.Isolate noise and vibrationPre-designed small clearances between pipe ends and elastic washers help isolate and absorb minor noise and vibration.Convenient jointThe couplings are easy to disassemble, allowing the pipe to be removed for cleaning and maintenance, so that the pipe can be periodically rotated to remove mud or other abrasive impurities in the pipe.Product ParameterFM/ UL Approved:Packing & DeliveryFAQQ: Are you trading company or manufacturer?A: We are a factory that specializing in ductile iron grooved couplings and fittings.Q: How long is your delivery time?A: Generally 15 days after the down payment. EPT 30 to 90 days.Q: Do you provide samples ? Is it free or extra?A: Yes, we could offer the sample for free charge but do not pay the cost of freight.Q: What is your terms of payment?A: Payment<=1000USD, 100% in advance.Payment>=1000USD, 30% T/T in advance, balance before shippment.If you have another question, pls feel free to contact us.Ouradvantages:1:Globallyacceptabequality:Theproductsofferedbyusarethoroughlyexaminedbyourexperiencedprofessionalstoensuretheirdurability, reliabilityandlongservicelife.2: Competitiveprice: Directmanufacturer,reducingallunnecessarycostforyou.3: Professionalteam: 20yearsforeigncustomersserviceexperience.Over10yearsinvestment castingmanufacture.4: Goodservice:Customerisfirst.