STANDARDS COMPLIANCE: Basic Design: API 600, ANSI B16.34, BS 5157 Face to Face Dimension: ANSI B16.10 End to End Dimension: ANSI B16.10 Flanged Ends: ANSI 16.5 B.W. Ends: ANSI B16.25 Drilling to ANSI or BS/AS2129 Table D to H or AS4087 / AS4331 / ISO7005-1 PN 10 to 250 Pressure/Temperature ratings to ANSI B16.5 For installation in applications such as industrial, mining & mechanical services. Suitable for super-heated steam, H.T.H.W steam condensate and water. This design consists of two discs, kept in contact with parallel body seats, using the line pressure and seating action to effect tight closure. Temperature changes in the line are accommodated by the expanding disc & do not affect the action of the valve. When being opened or closed, the discs slide across the seat faces, dislodging any foreign matter. The valve operating stem is outside screw rising through the handwheel. These valves are suitable for full bore steam use, where a low pressure drop across the valve is required. Also suitable for water, oil, gas, etc. Buttweld ends PRESSURE/TEMPERATURE WCB BODY For superheated steam etc. consult chart. WC6 chrome-moly available body for high temperature applications. Class Cat No. Test Pressure to API598 (PSIG) Working Pressure Shell (Hydro) Seat (Hydro) Seat (Air) CWP WOG Saturated Steam (at 260°C)* 150 (AS/BST D to F) 150-P316SXU-S 450 315 80 280 170 300 (AS/BST H to J) 300-P316SXU-S 1125 815 80 720 600 600 600-P316SXU-S 2225 1628 80 1440 1200 900 900-P316SXU-S 3350 2442 80 2190 1800 STANDARD MATERIAL SPECIFICATIONS Part Material 1 Body ASTM A216 Gr. WCB 2 Seat Ring A105+STL 6# 3 Disc Support ASTM A216 Gr. WCB 4 Disc* A105+410 5 Spring* Inconel X-750 6 Washer 304 SS 7 Screw B8 8 Stem AISI 410 9 Gasket 304 S.W. +Graphite 10 Bolt ASTM A193 Gr. B7 11 Nut ASTM A194 Gr. 2H 12 Bonnet ASTM A216 Gr. WCB 13 Back Seat Ring ASTM A182 Gr. F6 14 Packing Spacer ASTM A182 Gr. F6 15 Packing Flexible Graphite 16 Packing Braided Graphite 17 Pin 1035 18 Gland AISI 410 19 Gland Flange ASTM A216 Gr. WCB 20 Eyebolt ASTM A193 Gr. B7 21 Nut ASTM A194 Gr. 2H 22 Grease Nipple 304 SS 23 Stem Nut ASTM A439 Gr. D2 24 Retaining Nut 1025 25 Handwheel A536 26 Handwheel Nut 1025 27 Screw 1035 28 Nameplate 304 SS 29 Rivet 304 SS C A 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 28 29 B * Also available with expanding wedge energiser (no spring) style - refer to drawing. 5 STEAMCO - Cast Steel Steam Valves 7 PARALLEL SLIDE GATE VALVE PARALLEL SLIDE GATE VALVE CAT P316S CLASS 150-900 O.S. & Y. Rising Stem Full Port, Expanded Parallel Slide Gate Valve, Double Disc, Pressure Seal or Bolted Bonnet, Welded-in or Threaded Seat Rings. Mechanically loaded seating for low and high pressure sealing. Parallel slide dual loaded discs ensure superior shut off and allow by-pass/bleed fitment (double block and bleed requires soft seat inserts). Pressure/temperature charts available on request.