WHO IS ULTRA CONTROL VALVES Ultra Control Valves is a trading - - PowerPoint PPT Presentation

WHO IS ULTRA CONTROL VALVES

Ultra Control Valves is a trading company in the South African valve industry, specialising in control valves for the Water & Mining industry. Automatic control valves is our main focus, but we also offer isolating valves, check valves and air valves – often in special executions. Our main target markets are municipal, government and mining clients as well as suppliers/contractors in these markets. We have since two years ago formed a close relationship with Sizabantu with whom we have developed some unique solutions

Product Range

Control valves – Ultra ACV, Maric, ZZ Controls Air valves – ARI Flow Controls Isolating valves – Gate, Globe, Butterfly, Knife gate, Ball Non return valves – Swing, Nozzle, Spherical ball, Silent

U L T R A C V

VALVE DESIGN – SO RUGGED IT HAS STOOD THE TEST OF TIME.

Pilot operated Control valves

Ultra ACV

• Standard Pressure Rating 40bar
• Cast Steel body FBE Coated
• All wearing parts are in 316 SS
• 4:1 Cavitation resistance which is

better than competitors

• Large stocks up to 400mm
• Local manufacture in process

Pilot operated Control valves Applications

Pilot operated Control valves

Comparison with Y-Type Control Valves We believe the Ultra Globe Control valve has superior features

Y-PATTERN CONTROL VALVE

• LOW HEADLOSS THRU’ VALVE MEANS IT DROPS ALL

THE PRESSURE IN THE SEAT AREA

• ONLY CAPABLE OF 3:1 PRESSURE DROP
• UNSTABLE DISC REQUIRES V-PORT ON MANY APPLICATIONS
• LIGHT DUTY CASTING NOT SUITED FOR HI PRESSURE DROPS

Y-PATTERN FLOW PATH

Single Bearing

V-PORT DESIGN

• VALVES WITH V-PORTS LOSE 35% OF FLOW CAPACITY
• LARGER VALVES ARE REQUIRED TO ACHIEVE REQUIRED FLOW RATE
• V-PORT NOTCHES CATCH DEBRIS AND THEN CANNOT CLOSE

Pilot operated Control valves

THE ULTRA ACV CONTROL VALVE

• LARGER CAVITATION BREAKING AREA – CAPABLE

OF 4:1 PRESSURE DROPS

• SPINDLE SUPPORTED AT BOTH ENDS –DUAL BEARING FOR STABLE

CONTROL

• UNIQUE QUAD SEAL CAN BE USED ON BOTH SIDES
• REMOVEABLE COVER FOR EASIER MAINTENANCE

Ratio Pressure Reducing valve

• Reduces Pressure in a Ratio

if you want to reduce from 12bar to 4bar you use a 3:1 Ratio

• No Pilots – no tampering
• Instant reaction time
• Can use mutiple valves in series without

instability

• Can handle flows down to low value

Ex Extr tremel emely s y simple imple – made made f for

• r

Rur ural al conditions conditions

RATIO REDUCING VALVE

AVAILABLE IN RATIOS OF 1,5:1 2:1 3:1 4:1 5:1 SIZE RANGE 15mm – 300mm Pressure up to 100bar

Ratio Pressure Reducing valve

Ratio Pressure Reducing valve

Is this a brand new invention ? No

• A Ratio Reducing valve product has been available

in Australia for many years and used mainly in High Rise buildings. Limited size and pressure

• The SA Mining industry have been using SA

designed Ratio Reducing valves for many years with great success

Ultravalves now have their own Ratio Reducing valve available up to 300mm and 100bar pressure

Maric Flow Control Valve

Maric Flow Control Valve

Maric Flow Control Valve

Maric Video

Available on our website www.ultravalves.co.za under Control valves/flow control valves

Special Control Valves

Dam Discharge Valves

Special Control Valves Ring Needle Valves

Ring Needle Valves

Special Control Valves Tilting Disc Check Valves

Special Control Valves

Spherical Discharge Control Valves

Check Valves

Silent Check

Check Valves

Nozzle check

Check Valves

Ball Check

Check Valves

Swing Check

Isolation Valves

Double Eccentric Butterfly Valves

Isolation Valves

Triple Eccentric Metal seated

Isolation valves

RSV Gate valves

Isolation Valves

Wedge gate valves

Isolation Valves

Knife Gate valves large range for Water, Sewage, Chemicals

Engineering

• Ultravalves spend a lot of time with Consulting

Engineers to advise on correct valves for applications.

• We assist with Water Hammer Reduction by

selecting appropriate equipment

• We build complete Pressure Reducing stations
• We advise and assist with Water Loss

reduction methods

Engineering

Pressure Reducing Stations

Engineering

Safe Pressure Reducing Station

• Pilot operated Pressure Reducing valves are used

in standard Pressure Reducing stations

• Some inherent problems such as reaction delay,

tampering and breakages of Pilots makes these stations vulnerable to faulty-operation.

• Even though Relief valves are installed, no

engineer is confident that a standard Pilot

• perated PRV Station can ever be safe enough to

use in place of Break Pressure Tanks

Engineering

Safe Pressure Reducing Stations

The use of a Ratio Reducing valve makes a PRV Station INHERENTLY FAIL SAFE

• No pilots so not vulnerable to tampering or

breakages

• Operated by pressure forces the valve will still

work even if the seals are broken

• Can safely be used instead of a Break Pressure

Tank

Engineering

Safe Break Pressure Tank

Engineering

Water Loss Reduction

• Pressure Management has become a very important

component in Water Loss Reduction programs as it

• ffers “quick fix” results with fast payback periods.
• The technical requirements for standard Pilot operated

Control valves to perform Pressure Management can be onerous and often beyond the scope of standard Control valves.

• A product is now available which can increase the

capability of standard Control valves and also act by itself to provide very simple and “Africa friendly” solutions

Water Loss Savings

Leakages in Networks can be reduced if water pressure is reduced during Off-Peak Periods PRV’s with “smart” electronic controllers can reset pressure to lower values during off-peak hours P1=12bar P2=2bar P2=4bar

Water Loss Savings

Pressure settings on PRV’s can be automatically altered electronically by two basic methods

Water Loss Savings

Pressure Management with the use of Electronic “Smart” Controllers

• Costly – Upwards of R50 000-00 additional to valve cost.
• Complicated – operators do not understand them
• Maintenance intensive – when they stop working operators disconnect

the Electronics

• Control valves are often forced to operate beyond their capabilities,

resulting in short life span and instability

Too complicated for Rural Conditions

Water Loss Savings

What is the problem for Control Valves ?

Cavitation - the Achilles heel of Control valves. Most control valves can handle only a 3:1 pressure drop ratio before cavitation sets in. Example P1 = 12bar P2 allowable = 4bar Cavitation is a phenomena which has to be avoided at all costs as it destroys Control valves in a short period

Water Loss Savings

Although some control valves can handle 4:1 pressure drops without cavitation, when conditions are beyond these criteria, 2 x PRV’s have to be installed in series. This usually creates instability which has to be avoided as it can lead to pipe breaks, and negate the purpose of the water saving exercise completely. Ultra ACV Control Valve can handle A 4:1 ratio Example P1 = 12bar P2 allowable = 3bar

Water Loss Savings

2 x Pilot operated valves in series Problems with instability leading to pipe breaks

Flow

Water Loss Savings

Ratio Reducing valve

Uses of Ratio Reducing Valves in Water Loss Savings

 As a simple PRV with no potential instability issues  As an upstream PRV to a Pilot operated PRV without instability issues.  Fitted with a Solenoid valve it can be used to easily achieve a lower setting of downstream pressure during Off-Peak times

Reduce Pressure – Reduce Water Losses

Water Loss Savings

Ratio Reducing valve In Series - Stable

Flow Ratio Reducing Valve Pilot Operated PRV

Water Loss Savings

Ratio Reducing valve

Fitted with Solenoid: energise to activate or de-energise to

• pen the Ratio Reducing valve

Flow Solenoid

Water Loss Savings

Ratio Reducing valve

Flow Ratio reducing valve downstream of Pilot Operated PRV wide open during high demand periods and activated to reduce pressure to lower setting during low demand.

Water Hammer Solutions

We have the relevant equipment

• Correct Check Valves
• Control Valves
• Air Valves
• Bladder Surge Tanks

We can assist with Water Hammer Software analysis through Associate companies

Engineering

Ultra Control Valves in association with Sizabantu can assist with

• Extending the use of OPVC Pipe
• Valve selection
• Water Savings
• Water Hammer solution

Thank You