Huaqing Yh Series Oil Lubrication Stern Shaft Seal for Ship Repairing

Product Description  Huaqing YH series Oil Lubrication stern shaft sealIt is surely the more resistant propeller shaft mechanical seal on the market. The YH series, in comparison with all the existing propeller shaft mechanical seals, is the first in the world to be equipped with a double series of springs. This allows it to better compensate for angular and radial misalignments. Inside of it, in the rotating part, there is another international recognized innovation: the pumping ring. This technology, newly introduced in the propeller shaft seals, ensures that the cooling fluid (usually water) is distributed to a greater and better extent on the sliding faces, increasing the heat dissipation and thus reducing consumption. All this allows YH series to achieve performance over 60.000 hours of operation before maintenance. Of equal importance is the design, as its compact size allows the seal to be one of the axially smaller solutions in the world. Thanks to the "Repair Kit" in two halves the maintencance can be caried out directly on the mechanical seal without decoupling the shaft from the coupling. Additionaly, the YH series together with the hydraulic barrier system (Watershield) allows to carry out maintenance with the boat in the water. It is designed for shafts with diameter 50 mm to 800 mm. There are different possible material configurations and it is the only product to be certified, as standard, for fire resistance. The stationary flange can be designed with a maximum of 6 radial holes that allow to connect: one or more auxiliary cooling lines for the bearing, a pressure gauge, a temperature gauge, a flow gauge or a axial/radial vibration sensor. Suitable for all applications, it is the best product for mega yachts, passenger and military vessels.  OPERATING LIMITS:D= 50 - 1150mmP1= 2.0 barT= - 25 + 110°CV= 7 m/s.Axial movement: up to +/- 8.0 mmRadial movement: up to +/- 6.0 mmAngualr movement: up to 2°ELASTOMERS MATERIAL:Epdm (E)Nbr (N)FACES MATERIAL:Silicon carbideTungsten carbideAntimony carbonResin carbonOur companyHuaqing Fluid Technology Co., Ltd. is committed to be a professional provider of mechanical seal products and solutions. Founded in 1993, Huaqing is mainly specialized in R&D, manufacture and sales of mechanical seals, mechanical seal support systems and marine stern tube seals. Huaqing seal products are widely used in different industrial sectors, like petroleum, chemical, military, oil, electric power, shipbuilding and sewage treatment. Huaqing also welcome any requirement on challengable non-standard mechanical seal design, manufacture and service. Huaqing is dedicated to being the most reliable partner of you!Our WorkshopOur quality controlPhysics & chemistry lab                        High parameter testing lab- non-destructive testing; Spectrum analysis; Coordinate measuring; other testing instruments;Totally 15 type testing platforms, including 6 for pump seal testing, 2 for kettle seal testing, 2 for stern tube seal testing,2 for compressor seal testing, 3 for other seal application.Testing condition:Max. medium temperature: 300ºCMax. medium pressure: 13MPaMax. rotating speed: 25,000RPMOur certificatesPart of Huaqing CustomersFAQQ: Are you a trading company or manufacturer ?A: We are factory. Q: How long is your delivery time?A: Generally it is 5-10 days for stock products; if no stock, it is 15-25 days depends on quantity ordered. Q: Do you provide samples ? is it free or extra ?A: Yes, we could offer sample free of charge but do not pay the cost of freight. Q: What is your terms of payment ?A: Order amount less than1000USD, 100% in advance. Order amount greater than1000USD, 30% T/T in advance, then balance before shipment.   /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1