Parth plastic industries, an iso 9001:2000 company, provides products like polypropylene and high density polyethylene ball valves, diaphragm valves, non-return valves, flow indicators, y-type strainers, pipe fittings and a host of other accessories in various sizes, the maximum being 315 mm. The company supplies flow indicator - flange end type. Sight glasses are commonly used for inspection of fluid passing through particular assembly. Technical data: construction - 3 piece design, full bore, borosil glass, teflon seated; design and manufacturing standard - as per manufacturer`s standard; end connections - flanged as per ansi b 16.5 [150#] as per bs 10 [table d/e/f] and din standard; engineering options - ss 304/316 parts can be supplied; glass length - as per request; and available materials of construction - pp [polypropylene]; hdpe [high density polyethylene]; isotactic pp; and pvdf [polyvinylidene fluoride].