Severe Service Technology, Inc.

SSSSTT 11000 Stancliff Road, Suite 190 – Houston, Texas 77099

Tel: (281) 988-8222 – Fax: (281) 988-8294

Severe Service Valves

Mining - Minerals - Slurry Pipelines

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.

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

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.

ISO MOUNTING PAD

Model SSM

Product Overview

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 Stainless Steel: Type 17-4 PH (H900) Inconel 718

Titanium: Grades 1 and 2

Ball Stainless Steel: Type 17-4 PH (H900) Inconel 718

Titanium: Grades 1 and 2

Spring Stainless Steel: Type 17-4 PH (H900)

E-Ring Inconel 718

Packing Grafoil

Stem Stainless Steel: Type 17-4 PH (H900)

Coatings HVOF (Tungsten Carbide) or Spray & Fuse

Ball Downstream Seat

• 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

“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

DOWNSTREAM SEAT

SPIRAL WOUND

GASKET

Model SSM: Symmetrical Design

UPSTREAM SEAT

BALL

SCRAPER SEATS

Knife edge design assists in removal of

particulate matter from Body cavity when valve is cycled

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

STEM RETENTION SYSTEM

Retention ring prevents bottom of Stem from

making direct contact with ball slot, thereby

eliminating possibility of damage during actuator

installation

Valve Open Position Valve Closed Position

BODY

END ADAPTER

ISO MOUNTING FLANGE

STEM

LIVE-LOADED

PACKING GLAND

E-Ring

Ball

Seat

O-Ring

Spring

Slurry

Slurry Slurry

Severe Service Technology, Inc.

SSSSTT 11000 Stancliff Road, Suite 190 – Houston, Texas 77099

Tel: (281) 988-8222 – Fax: (281) 988-8294 E-mail: sales@sstvalve.com

www.sstvalve.com