ADVANCED LOW TORQUE DESIGN

Our ball valves have very low operating torques, and a range of seat materials to give the ultimate in process environ mental compatibility.

STAINLESS STEEL HANDLE

One piece stamped 316 Stainless Steel handle gives positive feel, quarter turn rust-free operation.

STOP PIN

A316 Stainless Steel “dead stop” pin is held into the body by a machined anti-vibration spline.

SEATS

Our totally enclosed seats offer wide process compatibility whilst maintaining a positive sealing across the entire operating range. This high level of seat integrity allows both vacuum, and high pressure services from one ball valve.

FIRESAFE SEATS

This option, in the event of a fire, ensures the ball/seat metal to metal contact is maintained. Note that the body and stem seals are changed to graphite.

BALL

This precision machined component is super finished assuring low operating torques.

FULL FLOW

Positive 90 degree travel combined with clear thru’ bores, review table for full or reduced bore.

PROCESS THREADS

CNC super finished screw cut threads ease assembly with reduced risk of galling.

SPINDLE

A one piece stem incorporates an anti-blowout shoulder which maintains seal integrity at all pressures. Twin anti-vibration lock nuts are standard.

BODY SEALS

Totally contained PTFE ‘O’ ring body seals give high body integrity, and additionally protect the body threads from process media.

BALL VALVE PRESSURE VS TEMPERATURE CURVE

QUALITY ASSURANCE

BS5750, ISO 9000, EN 29002 quality systems accredited by both Lloyds Register and British Standards.

CERTIFICATION AND TRACEABILITY

All body components exhibit unique identification coding and material test certificates to BS EN 10204 3.1.B.

TESTING

All Oliver ball valves are subjected to three pressure tests, a hydrostatic test at the full rated pressure and low pressure pneumatic test at 50 PSI (3.5 bar), as well as a shell test to 1.5 times working pressure.

VACUUM SERVICE

Our ball valves are suitable for vacuum service and have been tested at 0.01mbar with no detectable leakage.

ANTI-STATIC OPTION

Can be specified with our ball valves.

CONTINUOUS DEVELOPMENT

of existing and new ball valve products maintain the highest levels of performance and integrity for our products. Oliver Valves maintain in-house fire test, cycling and combined pressure/temperature test facilities.

CRYOGENIC

Ball valves have been low temperature tested down to minus 196°C please consult factory with system specifications.

SEATS

• Three piece body 10mm ball valves with unique twin seat
  120°C (250°F) maximum: Teflon/PVDF standard.
  200°C (390°F) maximum: Teflon/KEL-F add /KL.
• Three piece 14 and 20mm ball valves with solid seat
  200°C (390°F) maximum: PEEK.