瓦亚商贸（上海）有限公司

founded in 1842 ,walworth has been leader in the valve industry since its inception, continuing to utilize the latest technoloty for product imrovement and the development and the development of new products .today,walworth offers complete lines of industrial valves in variety of configurations, sizes, pressure classes and materials.<br>walworth continues ot meet and exceed the quality standards required for products used in nuclear ,industrial and process installations .these valves are munfactured under and comply with stict internationsal standards such as api,ansi,asme,astm,mss, nace,awwa, bsi ,csa ,etc.<br>walworth engineers are continuously evaluating our existing productg utilizing all of today's advanced analysis and engineering tools to assure that our avlves conform to customer requirements as well as industry standards.<br>new designs are made following the same rigorous methodology and are tested in our laboratory under actural load/pressure conditions .additionally ,they are subjected to cyclic operation under pressure to determine wear/life expectancy.<br>casting and forging product quality is assured through close control of our own foundry and forging facilities, the same type of close control is exercised over all of our suppliers through continuous erification of materials and part,form,fit ,and function.<br>the walworth group of enterprises is dedicated to the design ,manufacture and servicing of flow control products that effectively meet our customers requirements.</p>