BALL  VALVES       BALL VALVES GATE VALVES GLOBE VALVES   CHECK VALVES     DOUBLE BLOCK & BLEED VALVES     PRESSURE BALANCE PLUG VALVES     FORGED VALVES     SOLENOID VALVES     BUTTERFLY VALVES     BELLOW SEAL VALVES     CONTROL VALVES                                                                                                           CAST STEEL, 2 PIECE, TRUNNION MOUNTED - FULL and REDUCED PORT     Features:       = Hawa Valves Cast Steel Ball Valves have been designed to meet the requirements BS 5351/ASME B 16.34API 6D-ISO 14313/API 608/MSS SP 72 = Face to Face and End to End dimensions conform to ASME B 16.10 / ISO 5752 / BS 2080 /API 6D-ISO 14313/ DIN = End flange dimensions conform to ASME B 16.5 / ISO 7005-1 / API 605 / BS 3293 / DIN = Butt weld end dimensions conform to ASME B 16.25 = Fire tested design to API 607/API 6FA/BS 6755-II = Pressure energized seat rings with spring assistance for preloading ensure leak tightness even at low pressure = Blow out proof stem construction = Double block and bleed = Antistatic devices ensure electrical continuity between ball, stem & body = Bearing pads fix the ball and absorb total thrust of the medium relieving the downstream sealing of the load = ISO 5211 top pad for simplified gear/actuator mounting = Valves meet the requirements of fugitive emission levels Shell category B as per MESC SPE 77/312   Options:   = Two or three piece construction = For low temperature and cryogenic services (cold box and non-cold box applications) extended bonnet as per BS 6364 available = Locking arrangement = Gear, Electrical, Hydraulic or Pneumatic actuator available = Soft seats are recommended for service temperature up to 260 Deg.C and for higher temperatures a metal to metal seating offered = Emergency sealant injection system = Can be supplied with GRAYLOC END HUB, under project license from GRAYLOC PRODUCTS®, UK. = Large valves are provided with lifting lugs and installation supports.     Materials :     Part Name Material Option   Body ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB   Side Piece ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB   Ball ASTM A 351 CF8 / A 351 CF8M / A 182 F304 / A 182 F316 / A 182 F 6a   Body Seal PTFE / Graphoil / Spiral Wound SS 316 with Graphoil   Seats PTFE / GET / Graphite filled PTFE   Seat Retainer ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB   Stem ASTM A 182 F304 / A 182 F316 / A 182 F 6a   Trunnion ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB   Gland Housing Graphite ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB   Top Plate ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB   Spring Spring Steel / SS 304 / SS 316 / Inconel X 750   'O' Ring VITON / Silicon Rubber / Graphite   Gland ASTM A 182 F304 / A 182 F316 / A 182 F 6a   Gland Packing Graphoil / PTFE   Stem Packing Graphite filled PTFE / Graphoil   Gland Nut Stainless Steel   Stem Nut Stainless Steel   Lever Carbon Steel with PVC   Gear Box /   Actuator Manufacturer's Standard   Studs / Bolts ASTM A 193 B7 / A 193 B7M / A 193 B8 / A 193 B8M / A 320 L7   Nut ASTM A 194 2H / A 194 B7M / A 194 B / A 194 8M / A 194 4/7     * Valves are available in Duplex & Super Duplex Stainless Steel and Nickel Aluminium Bronze. Please indicate Trim required and ask for individual technical data sheets provided separately for these special materials.