b'CHECK VALVEC H E C K VA LV E ( N O N - R E T U R N ) T Y P EA P- N X Cast Iron or rubber lined cast iron body, semi flexible disc, swing check.Flow reversal of plus 0.35 bar. Design BS5158, BSEN 12334.RANGE OF APPLICATIONHyd. test pressure in bar forSize MM Pressure Rating BarBody Seat25 - 350 7.0 10.5 7.7FLANGING:- Connecting dimensions & thickness to ANSI(ASA)/BS/AS/EN/ISO specifications to suit: ANSI B16.1 125LB, EN 1092-2, PN 6~16, AS4087 PN 10~16, AS2129 Table D to E, ISO 7005-1 PN 6~16, AS4331.1 PN 6~16. EN 1092-2 PN 6~16.MATERIAL LISTPart Name Material Body/End Piece Cast Iron IS: 210 Gr. FG. 260 with hard/soft rubber lining Disc (or flap) Steel reinforced plate duly rubber lined.Available in neoprene, viton, teflon etc. Grade B Butyl is standard. Connecting bolts/nuts Steel IS: 1367, Gr. 4.6/4 Valve Surface protection Prime coat: chlorine-free with modified alkyd resin.Additionalexternal coating: machine varnish Linings Available Food grade, halar, hard rubber, teflon etc.FEATURESSimple three parts design, with only one moving part. Disc, absolutely 100% leak tight, 0.035 bar back pressure. Full bore design for minimum flow turbulence. Flap also serves as gasket seal between body and end piece.Valve usable in vertical or horizontal plane.Down time is kept to a minimum as the flap can easily be replaced in minutes.ADIMENSIONSFace to Face OverallWeight Size Size Dimensions A Dimensions B(mm) (in) Unlined Rubber Lined approx.mm mm mm kg.25 1 151 157 124 4.0 B40 1-1/2 180 186 149 7.050 2 198 204 162 8.565 2-1/2 238 244 216 14.080 3 259 265 216 20.0100 4 348 356 295 34.0150 6 400 406 327 56.0200 8 492 500 396 103.0250 10 590 600 500 190.0300 12 690 700 554 310.0Rubber lining specification according to flow medium & working temperature.Cast on flow direction arrow ensures correct installation.When placing order, please specify flow medium, working pressure and working temperature.Not recommended for use under vacuum pressure.The catalogue is general in its nature and design and can vary at any time.This catalogue is to be used as a guide only.UNIFLO - Check Valves - Resilient Seated 5'