Body and Ball Materials: The resin systems used in the Advanced Valve Technologies moulding process are the result of sustained work with the industry's leading suppliers over a period of years. Formulations offering excellent mechanical strength and outstanding corrosion resistance against a wide spectrum of aggressive chemicals are now available.

AVT 510 is an Anhydride Epoxy system with milled glass reinforcement and silica filling.
AVT 520 is a Novolac Epoxy system with milled glass reinforcement and silica filling.
AVT 530 is an improved temperature Epoxy system with milled glass reinforcement and silica filling.
AVT 540 is a Vinyl Ester system with milled glass reinforcement and silica filling.

Reference must be made to the Chemical Resistance Guide available either to your Distributor or to the Advanced Valve Technologies Technical Help Desk for selecting the appropriate resin system and for confirming the maximum operating temperature for specific media. Test coupons for all Advanced Valve Technologies resin systems are available for chemical compatibility checks. 

Sealing and Stem Materials: See below.

Full Port Body and Ball Design: Floating ball design, three part moulded body secured with 316 stainless steel studs and bolts.

Stem Sealing System:
 

"O" Ring System		Chevron Stuffing Box System
Multi Viton "O" Ring Shaft Seals for multi-cycle maintenance-free use and low operating torque.		TeflonT Chevron packing with Belville thrust washer. A parallel motion adjuster for simpler and quicker adjustment applies even pressure on the chevron pack.

Typical Ball Valve - Move cursor over valve to animate

Stem: Blow-out proof design, 316 Stainless Steel as standard, encapsulated in AVT 510, 520, 530 or 540 resin to match body and ball. Other stem materials can be supplied. Seating System: Virgin TeflonT seats with Viton energisers as standard, other energiser materials are available. Operator Design: Corrosion Resistant, light weight lockable levers are offered for all Ball valves up to 150 mm (6 inch). Standard gearboxes can be fitted directly onto the valve. Stem extensions manufactured from reinforced composites can be supplied for buried pipe service. Actuation: Any standard actuator can be fitted including ancilliary equipment such as switch boxes, solenoids, beacon indicators etc.

Special Full Port Ball Valve Configurations Advanced Valve Technologies Limited is committed to a continuous development programme to meet customers' special requirements. Backed by advanced computer design and development programmes and a rigorous test procedure, Advanced Valve Technologies offers fast response solutions to difficult to solve problems. Please refer to Custom Design, Moulding and Manufacturing Facilities Specially modified versions of these Full Port Ball Valves now include:

• Pressure-relieved valves that permit excess pressure that may accumulate in closed valves to be relieved upstream
• Glass fibre reinforced replaceable sleeves for ease of maintenance in processes causing scale build-up in valves and pipes
• Sample valves permitting safe extraction of samples without interfering with production flow
• Actuators, gear operators, switch assemblies etc. can be mounted to suit customer's requirements

Advanced Valve Technologies' design and moulding experience is at the disposal of customers seeking the economic production of custom engineered, high performance products or components using reinforced thermoset resin systems ...

It's technologies can be applied advantageously to the manufacture of parts which may be subjected to chemical attack or where weight saving and the maintenance of performance characteristics across a wide temperature range are a necessity, even when manufactured quantities are relatively small.

Advanced Valve Technologies welcomes suggestions for innovative products that meet specific requirements or that can be added to our range.

Actuators, gear operators, switch assemblies, etc. can be mounted to suit customers' requirements.