SIL 2 Certified

TÜV Rheinland certified to Safety Integrity Level 2 per IEC 61508-1 — one of the few companies in Asia with this certification for the VF-9 Series.

Patented Seat Retainer Design

Patented seat and retainer ring attaches without bolts providing an uninterrupted sealing surface — achieves 100% tight shutoff and prevents seat enlargement.

API 607 Fire Safe

Fire safe approved per API 607 and ISO 10497 — soft seat design maintains zero leakage in normal operation and metal-to-metal seal after fire event.

Bi-Directional Shutoff

Floating self-adjustable sealing design provides flawless bubble tight shutoff — service life up to 2,000,000 cycles.

ATEX Certified

ATEX 2014/34/EU Group II Category 2GD approved, electrically conductive design eliminates static electricity build-up in hazardous area applications.

Three Seat Types

Soft seat (VF-91A/94A), metal seat + PTFE fire safe (VF-92A/95A) and full metal seat (VF-93A/96A) — covers ambient to +500°C high temperature service.

Upgraded Shaft Strength

Splined shaft without drilling for taper pin — increased shaft strength. Both splined shaft set bolt and bottom cover provide reliable blow-out protection.

Dust-Proof Design

Bushing design prevents ingress of foreign material into the shaft area — prevents jamming and extends service life in dirty or abrasive environments.

Easy Maintenance

Spline connection design allows for easy repair and maintenance. For flanged end valves, shaft is positioned at the flange side reducing external leakage risk.

Fugitive Emission Approved

Emission test approved to TA-LUFT, ISO 15848-1, ANSI/ISA-SP-93 — suitable for applications requiring controlled fugitive emissions.

PED Module H

Certified with Pressure Equipment Directive PED(H) 2014/68/EU — body strength per API 598 and ASME B16.34 across all six series.

Wide Material Options

Body in WCB, CF8, CF8M. Disc in CF8, CF8M. Shaft in SS304, SS316, 630SS, XM-19. Seat options include PTFE, TFM, Graphite, Glass Fiber and Inconel variants.