Severe Service Technology, Inc.

Transcription

1 Severe Service Valves Mining - Minerals - Slurry Pipelines Severe Service Technology, Inc. SST Stancliff Road, Suite 190 Houston, Texas Tel: (281) Fax: (281)

2 Since its founding in 1997, Severe Service Technology, Inc. has dedicated itself to the engineering and manufacture of the most rugged and durable metal-seated ball valves in the industry. Our years of manufacturing experience, combined with over 50 years of engineering expertise, has created a complete isolation valve solution to any industry s toughest critical service applications. We have shipped over 15,000 valves. We provide total turnkey operations with design offices in Houston, Texas and manufacturing in Monterrey, Mexico. Our state of the art manufacturing facility is fully equipped with the latest technology in machining, thermal spraying and testing equipment. Our rigid, quality control standards ensure that our products are manufactured with detailed precision that meet or exceed ANSI, AISI, API and MSS-SP-61 requirements. Rely on us for your next metal-seated ball valve requirements. Allow our products to be the solution to your most demanding applications. Increase your productivity, maximize your plant efficiency. Applicable Codes and Standards SST valves are designed, manufactured and tested to: MSS-SP 61: Pressure Testing of Steel Valves API 598: Valve Inspection and Testing ASME B16.34: Valves Flanged, Threaded and Welding End ASME B31.3: Process Piping Severe service ball valves can be used in both frequent cycling and applications with long periods where the valves are either open or closed position.

3 Model: SSM Symmetrical Design - Floating Ball Valve Standard Features: Two or three piece side-entry design One design for both uni-directional and bi-directional service Live-load Stem Packing Gland Scraper Seats (standard) ISO Mounting Pad Materials: Valve Body and End Adapter materials can range from Carbon Steel - Duplex Steel Titanium Ball and Seat Coatings: thermal spray hard coating is applied to the sealing surfaces and mate-lapped. Typically carbide or nickel based materials are used. Coatings applied via High Velocity Oxygen Fuel (HVOF) or Spray & Fuse technology. Optional Features: Ceramic balls, seats and liners can be used for highly corrosive and erosive applications Top-Entry with caged trim, which provides installation of internals (ball, seats, and springs) while valve remains in pipeline. In certain conditions this design greatly reduces downtime and cost versus removing existing valve. Portable Flushing System Liners Product Field Service SST will respond in 48 hours to all requests for field service and/or troubleshooting with a Service Plan mutually accepted by both parties. Our Field Service Personnel are fluent in English and Spanish. 100% Testing (per MSS-SP-61) Body Hydrostatic Test: 1.5 times MCWP at 100 F (38 C) Seat Closure Test: 1.1 times MCWP (in preferred direction) Low Pressure Test: 80 psi (6 bar) Air

4 Applications Slurry Pipelines Operating and Standby Pump Stations: Severe service ball valves are used to prevent slurry leaking (zero leakage and full differential pressure) back to an idle pump. Valves can be used for both suction and discharge sides for pump isolation. Choke Stations: Where pressure built up must be reduced or eliminated to maintain safe pipeline operation and provide back-pressure to provide constant flow. Severe service ball valves are used to divert flow to the Choke Station. When closed, the ball valves must provide zero leakage at full differential pressure. Isolation Stations: Valves are required to operate in the event of major rupture to the pipeline. Placed at certain intervals, ball valves can isolate sections of the pipeline. It is common to have two valves in series ( Cut and Seal ) where one is the flowing valve (Cut) and one is the isolation valve (Seal). SST s full-ported valves are also designed for pig launching and receiving stations. Instrument Isolation: Control and measurement systems are located the length of the pipeline. These small severe service valves are used to isolate instruments for repair, calibration or replacement while the pipeline is in normal operation. High-Pressure Dewatering: Process where high-pressure water is pumped to the surface from underground mining applications. Mining, Minerals, and Oil Sands Autoclaves: SST provides severe service valves for leaching processes (i.e., HPAL) where both high pressure and temperature are present. Valves are also designed for erosive and corrosive applications such as autoclave discharge, vent, isolation, and feed. Roasters: A dry process involving gas-solid reaction at very high temperatures to purify the metal components. Severe service valves are used for isolation and drain. Tailings: A waste slurry product of fine minerals and water which remain after extracted from unusable ore produced by the milling operation. Floatation Cells / Column Thickeners: A method to separate minerals depending on their ability to attach to air bubbles and carry them to the surface. High Pressure Leaching: Where cyanide is added to a precious metal (i.e. gold) and leaching the mineral into solution. Oil Sands: Severe service valves are used in froth treatment, slurry production processes and steam injection in Steam Assisted Gravity Drain (SAGD) systems.

5 Model SSM Product Overview Sizes: 1/2 to 36 ASME Class: 150 to 2500 End Connections: RF Flanged, RTJ, Greylock, Buttweld and Socketweld Bore: Full and Reduced Actuation: Lever, Gear, Electric, Pneumatic or Hydraulic Standard Materials of Construction (Consult Factory for other materials) Item / Part Materials Body / End Adapter Carbon Steel: A105 Stainless Steel: Type 304 and 316 Titanium: Grades 1 and 2 Seats Inconel 718 Titanium: Grades 1 and 2 Ball Inconel 718 Titanium: Grades 1 and 2 Spring E-Ring Inconel 718 Packing Grafoil Stem Coatings HVOF (Tungsten Carbide) or Spray & Fuse

6 Model SSM: Symmetrical Design ISO MOUNTING FLANGE STEM RETENTION SYSTEM SPIRAL WOUND GASKET LIVE-LOADED PACKING GLAND Retention ring prevents bottom of Stem from making direct contact with ball slot, thereby eliminating possibility of damage during actuator installation STEM END ADAPTER Spring Slurry SCRAPER SEATS Knife edge design assists in removal of particulate matter from Body cavity when valve is cycled O-Ring BALL E-Ring Seat UPSTREAM SEAT Ball BODY Slurry Slurry DOWNSTREAM SEAT SEALING DESIGN O-Ring: Eliminates material from getting behind Seat E-Ring: Eliminates material from getting behind Seat from any flow direction Spring: Located above Seat and out of the flow path FLUSH-OUT BODY CAVITY Upon initial opening some material will enter body cavity. Upon valve re-opening, material will flush-out downstream of Ball in preferred flow direction Valve Open Position Valve Closed Position

7 Severe Service Technology, Inc. SST Stancliff Road, Suite 190 Houston, Texas Tel: (281) Fax: (281)