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Stainless Steel Ball Valves

Stainless Steel Ball Valves

Stainless Steel Ball Valves are included in our product range to complement our Camlock Fittings offering. These Ball Valves are the standard products used across general industry, wherever flow needs to be controlled. The Stainless Ball Valve sizes and specifications offered here are as per industry standards. We service clients across industries including the petrochemical, chemical, food and beverage and Water, Oil and Gas (WOG) industries. Our Stainless Ball Valves are manufactured in High Grade Stainless Steel 316 with certain ranges offered in SS304. Often also referred to as a Ball Valve Stainless Steel or SS Ball Valves. Ball Valve Suppliers please call for trade pricing or link via TRADE option in menu bar above.

Features

  • The Pacific Fittings stainless ball valve range has both ends as female threads (Female BSP Threads)
  • Blow out Proof Handle Stem
  • Handle with Locking Lever
  • PTFE Seals and Seats
  • 1000 PSI WOG

Stainless Ball Valve Advantages

  • Unrestricted flow - no pressure drop.
  • Activated with a quarter-turn - quick to use.
  • Relatively inexpensive - low to no maintenance costs.
  • Excellent ball sealing in seat - chance of leakage minimal.
  • Needs no lubrication.

General Ball Valve use?

  • Stainless Steel Ball Valves are used wherever flow needs to be shut-off.
  • This allows pipes or hoses to be connected and disconnected without spillage.

Benefits of using a Ball Valve?

  • Quick, quarter turn on-off operation.
  • The stainless steel ball valves are compact valves, require no lubrication and give tight sealing with low torque.
  • A full-bore (full port) valve will provide virtually no obstruction to flow and as result pressure drop is negligible.

How to size a threaded Ball Valve?

  • The size of the pipe the valve threads onto determines the size of the valve.
  • A 1” threaded pipe will take a 1” Ball Valve.

Ball Valve design, operation and their benefits?

  • A hollowed out pivoting ball is turned with a handle.
  • The ball is solid stainless steel.
  • It's a quick 90° turn, with a positive stop. You don’t have to make too many turns to get the water to flow or to shut-off. Great in a panic situation.
  • When the handle is running parallel to the valve, flow is open and when the handle is positioned at right angles to the pipe, flow is closed.
  • There’s also no guessing. You know when it’s on and you know when it’s off.
  • The way the valve is constructed, you have a heavy body with the stop catch cast into the body. When the valve goes up against it, you’re going to feel that positive stop. You know you can’t turn it more.
  • The same goes for when one opens it. The seal is located in the body of the ball valve and presses up against the ball. As you turn the valve open or closed the valve makes contract with the seals. They maintain the water proofing ability of the valve through-out its life.

What is full port?

  • For Full Port the valve hole actually matches the pipe it’s connected to.
  • If the pipe is ¾” and the valve is ¾”.
  • When not full port, the ball valve is actually a little bit smaller than the pipe diameter.
  • A reduced port ball valve will limit the water flow through the pipe.

Why are PTFE seals used in the ball valve?

  • Main advantages of PTFE seals are:
    1. High chemical resistance
    2. Wide operating temperature and pressure ranges
    3. Can withstand dry running
  • An inferior seal will result in a leaking valve when ‘running’ and when ‘closed’.
  • The best-known brand name of the PTFE-based formulas is Teflon.

Which Stainless Steel for the Ball Valve; 316 or 304?

  • Our stainless steel ball valves are supplied in both 316 and 304. Both steels provide excellent resistance to corrosion and rust, both are durable.
  • The basic difference is the presence of molybdenum in Stainless 316.
  • The moly gives SS316 greater resistance to chemical attack than Stainless 304, especially against chlorides and chlorinated solutions.
  • Stainless 316 is more expensive because of its higher corrosion resistance.
  • In addition to the molybednum, Stainless Steel 316 contains more nickel than 304 but has less chromium.
  • Stainless 304 usually comprises 18% chromium, 8% nickel, Stainless 316 at 16% chromium, 10% nickel and 2% molybdenum.
  • In instances where salt exposure is an issue the extra cost of stainless 316 is the preferred option as it will last longer than Stainless 304 .
  • SS304, whilst still providing excellent resistance in less corrosive situations, is also cheaper which explains its popularity and widespread use.
  • If your application is not exposed to salt or uses less corrosive acid, Stainless 304 is your usage option.
  • Stainless 304 is the most common of all stainless steel grades. Used in kitchens throughout the world.

One Piece Ball Valve vs Two Piece Ball Valve vs Three Piece Ball Valve

In the single piece design valve, the body is cast/forged as one piece. The insertion of the ball will be through the end of the body. This design restricts the valve to a reduced bore. In the 2 piece design, the body is constructed in two pieces and the ball is held in position by body stud. The two piece body allows the valve to be manufactured with a larger ball making this a full bore valve. There can be full port or regular port design possibilities with this construction. In the case of three piece construction, the body has two end pieces and one centre piece. The center part of the valve containing the ball, stem & seats to be easily removed from the pipeline. This construction permits in line servicing and cleaning without disturbing the existing pipe work. This ball valve can be taken apart the quickly and easily. A well designed valve will not leak, a poorly designed product will leak regardless of the configuration.