Design Features and Benefits

Model Design

We would like to take this opportunity to present Flo-Tite’s high performance 3pc ball valves.  Flo-Tite’s unique design 3pc design valve is a full port design; rated at 1500 WOG; size range ¼” thru 4 inch.  The valve body can only be assembled one way, which eliminates all the bolt, nut and washer problems associated with other manufacturers through bolt designs.  This unique Flo-Tite design feature will be of great importance where valves are installed in difficult to reach locations or tight spaces such as on board ships and many other similar complicated piping systems.  Over our last twenty years in this business, we have witnessed hundreds of problems associated with the older through body bolt designs.  Problems associated with the older designs included: misalignment of the center body and end caps, causing the body seal to be damaged or deformed which at times caused major leaks in the system.  Galling of stainless steel body bolts due to the poor quality control, (which leads to customers cutting bolts off the valve to repair or discard), over tightening of body bolts resulting in extremely high valve operating torques and at-times, rendering the valve inoperable.  Our valve center body is fastened to the end caps using eight cap screws minimizing the potential of bolt shrinkage and elongation due to thermal expansions and prevents loosening of bolts due to excessive vibration.  The Flo-Tite design also insures the ease of foolproof reassembly every time!

Weld-In Place

Super-Tek’s high temperature seat capabilities allow weld end ball valves to be welded to the piping system without disassembly following special welding procedures.  This unique advantage results in ease of installation minimizing potential installation errors and cost savings while insuring full integrity of the factory assembled and tested valve.

Valve Castings

All valve castings are investment cast; bodies are either stainless steel type 316, CF8M with weld ends being 316L CF3M or WCB A216 carbon steel with 316ss ball and stem, all assembly hardware is 304ss including the valve handle.  Stainless valve castings are solution annealed/normalized for the highest quality and added strength.  All wetted flow paths have a machined I.D. finish of 30 RA through 8RA, with electro polish as an option.

I-SO-Mount

Flo-Tite's standard body casting has an integrally cast actuator mounting pad, which complies with ISO5211 mounting.  This high-end design provides positive mounting that eliminates unwanted actuator movement during high cycle or modulating applications.

Secondary Containment

The I-SO-Mounting pad also allows for the addition of a Flo-Tite's media containment cap, a multi-purpose device that can be used as a safety device in high temperatures, emission control, and as a maintenance tool.  The I-SO-Mounting also allows for adapting to our cryogenic stem extension.

Valve Stem Assemblies

Flo-Tite’s Van-Guard stem sealing system, designed to minimize fugitive emissions.  Increases safety and provides an immediate ball valve solution to the newer EPA performance requirements, for valves to maintain a leak rate of 500ppm or less.

Flo-Tite’s Van-Guard seal, provides a state of the art stem sealing system incorporating a triple set of valve stem seals.  This unique system eliminates the possibility of valve stem leaks in most all media applications.

Stage I – Front line

Stage I provides a front line defense against leakage.  The blow-out proof stem shoulder has a 45 degree bell shaped slope.  The bell shaped design offers increased sealing surface, effectively blocking all leak paths during stem rotation.  The wedging action of this portion of the stem design is far superior to the common flat stem shoulder design found in most other valve designs.

Stage II – Guide-seal

The O-ring originated early in many high cycle applications.  Its basic function reduces the potential of machining imperfections and provides a low torque flexible seal.  This center guide also helps to maintain a perfect stem alignment, by eliminating side loading stress, which can cause stem leaks.

Stage III – Live-Seal

Live-Seal is considered the intellectual component and the workhorse of Flo-Tite’s Van-Guard Stem Sealing System.  Working in unison with stages I and II, stage III calls upon the use of V-Ring packing sets which expands side ways as it is compressed and energized blocking all air pockets. The compression of low-friction TFM v-ring also eliminates stem leakage by avoiding straight-line leakage paths.  As an added safety feature, all Hi-Tek stem assemblies are provided standard with anti-static grounding devices. 

Whether your service involves volatile organic compounds, volatile hazardous chemicals, or air pollutants.  Flo-Tite’s ball valves are by design dependable, long lasting and fully maintainable.  Flo-Tite has various valve solutions and designs that give end users the freedom of choice for the toughest requirements imposed by the industry and by international standards.

Product Material Components Identification 

In our two decades of ball valve experience we have had many occasions where our clients had to have each valve tagged to identify all valve soft parts.  We have realized the importance of this tagging and have decided to provide spot weld metal name plates as a standard feature for our multi-task valve series 200/300.

Flo-Tite’s marking system follows MSS SP-25-1998 guidelines.  Our body castings are cast with the following information.

Company Name:              Flo-Tite

ANSI pressure rating:       1500 WOG

Valve Model # :                200

Material:                         A216-WCB

Size:                              2”

Casting heat numbers are stamped into all castings allowing for full traceability. 

Metal name plate (304SS) welded to body

Model #:                    310SS

Trim codes:                FFF

Company website:      www.flotite.com

Valve users worldwide will be able to contact Flo-Tite quickly in the unlikely event of a valve failure.  These valve markings ensure the client of ordering the correct valve repair kits.  Creating a user friendly, high performing, safer product is our primary concern at Flo-Tite, Inc.

Consult ball valve identification code guide for full part numbers, tech bulletin page 188-07.

Valve Seats

Flo-Tite seat design ensures bi-directional, bubble-tight sealing with low operating torques.  All resilient seats feature relief slots to relieve pressure past the upstream seat and positive preloading to ensure low-pressure vacuum sealing.  Cavity filler can also be added that will allow ball valve to be used in application where never before possible.

Valve Ball

Valve balls are precision machined and mirror finished for bubble-tight shut-off with low operating torque.  As an added safety feature, a hole in the stem slot of each ball equalizes pressure between the body cavity and the line media flow when the valve is in the open position.

Optional: A) Vented ball, positive release to upstream side is assured in bypassing the upstream seat through a drilled hole in the ball, unidirectional shut off only.  B) Open-port.  C) Escaping ball

For more information consult tech bulletin page 134/135-07

Models Offered

Threaded end, socket weld, butt weld SCH 5, 10 and 40, 150 and 300 LB flanged end, Tri-Clamp and extended tube; any combination of ends can be offered to meet your special requirements.  Also available flush bottom tank valves.

Valve Operators

Lever handle and oval with safety locking device and all types of gear operators and automated designs.

Valve Upgrades

Flo-Tite multi-task series of 3pc valves gets its name from the flexibility that is built into this standard product.  When you need a special valve, this series can easily be converted by an upgrade of the valve seat adding, UHMWPE, TFM, Metal and many other materials.  Modulating Control is available with an easy change of the valve ball to a     v-port design control valve. 

Applications

A superior quality, rugged, and universal multi-purpose valve for all fluids, slurries, semi-solids and corrosive services in endless industrial, chemical, petrochemical, power and original equipment applications.