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KNIFE GATE VALVES -- MODEL A

DOC. A.12/07 P.T.F.E. LUBRICATED It is made of PTFE filament threads which are impregnated using vaccum with a dispersion of PTFE and a special lubricant which helps the work at high speed. It is braided by the diagonal system. Suitable for valves and pumps working with nearly all the fluids, specially the more corrosives, including concentrated oils and oxidants. It is also suitable for fluids with solid contents. P(bar) = 100/ T = -200+270 ºC PH = 0-14 GRAPHITE FILAMENT It is made of graphite threads of high purity. It is braided by the diagonal system and impregnated with a small quantity of graphite and lubricant which helps to reduce the porosity and makes easier the running. It is a packing with low friction coefficient and high heat conductivity. Is has a wide range of applications, as the graphite withstands the steam, water, oils, solvents, alkalis and most of the acids. The chemical products that attack this packing are strong oxifiers as the oleum, the fuming nitric acids, the diochramates and the oxygene. P(bar) = 40 / T = 650ºC PH = 0-14 CERAMIC FIBER It is made with ceramic threads. Its application is only for air or gas at high temperature and low pressure. P(bar) = 0.3 / T = 1400ºC PH = 0-14

5) SPINDLE (STEM)

The spindle (stem) of the CMO valve is made of stainless steel 18/8. This provides a high resistance and long corrosion resistant life. The valve design can be with rising or non rising stem construction. When rising stem construction is manufactured a stem protection hood is supplied that protects the stem from dust and dirty and, at the same time, keeps the stem lubricated.

6) PACKING GLAND

The packing gland gives the possibility to apply a uniform pressing force on the packing to ensure the tightness of the packing. As standard cast iron body valves include aluminium packing gland and stainless steel body valves include CF8M stainless steel packing gland.

7) ACTUATORS

All kind of actuators can be supplied with the advantage that CMO design is completely interchangeable. The design gives the possibility to the customer to change the actuators by their own. Normally there is no need of any extra mounting kit and in the cases that it is necessary CMO provides it. C.M.O. Amategui Aldea 142, 20400 Txarama-Tolosa (SPAIN) Phone: 943-67.33.99 / Fax:943.67.24.40 / cmo@cmo.es http://www.cmo.es -5-