Product Overview
Certified for SIL 3 and Fire-Tested for Safe and Reliable Industrial Flow Control
High-Performance Valve for Petrochemical and Power Sectors
Tri Lok® is the preferred isolation valve for vacuum to high-pressure applications. The zero-friction metal seal ring provides zero-leakage bidirectional sealing with minimal torque and is fire-test certified. Compared to gate, globe, or ball valves of the same size and pressure class, Tri Lok saves space and reduces weight while minimizing installation and maintenance costs.
Technical Specifications
| Item | Parameters |
|---|---|
| Size Range | DN 80 to 600 |
| Temperature Range | -60°C to 400°C |
| Maximum Allowable Working Pressure | 40 bar |
| Body Type | Lug | Double Flange |
| Seal Testing | Bidirectional Zero Leakage | EN 12266 Rate A |
| Valve Design | EN 12516-1 | EN 12569 | EN 593 |
| Material Standards | EN 16668 | AD2000 W0 |
| Marking | EN 19 | DIN EN IEC 61406 | DIN 91406 |
| Top Flange | ISO 5211 |
| Flange Drilling | EN 1092-1 PN 10 | PN 25 | PN 40 |
| Declaration of Conformity | CE | UKCA |
| Pressure Equipment Directive | 2014/68/EU | PE(S)R |
| Machinery Directive | 2006/42/EC |
| Explosive Atmosphere | ATEX (2014/34/EU) |
| Fugitive Emissions | ISO 15848-1 | TA-Luft VDI 2440 |
| Safety Integrity Level | IEC 61508 SIL 3 Capable |
| Body Material | Carbon Steel | Stainless Steel |
| Disc Material | Carbon Steel, Stainless Steel |
| Stem Material | 410 Stainless Steel, XM-19 (Nitronic® 50) |
| Design Standard | EN 12569 | EN 593 | NE 167 |
| Seat Material | Stainless Steel (Hardened) |
| Applications | Bulk Liquid Storage, Carbon Black Processing, Chemical Processing, Geothermal Steam, LNG/Liquefaction, Power Generation |
Features and Benefits
A Seat & Seal System
Fully field-replaceable seat and seal extend overall service life, minimize downtime, and reduce costly off-site repair or full replacement.
B Enhanced Seat Hardness
Superior performance, durability, and wear resistance compared to other materials, eliminating the risk of seat/seal wear.
C Sealing System
The non-rubbing, metal-to-metal sealing system is inherently firesafe and fire-tested, while meeting zero-leakage requirements for many critical applications.
D Packing Ring
Offers a flexible design and wide range of materials to provide torque-loaded sealing with zero leakage. (Solid packing ring optional).
E Splined Disc-to-Stem Connection
A robust and reliable connection that allows the stem to move axially independent of the disc, protecting the disc/stem connection from temperature fluctuations and pressure effects. This connection prevents common misalignment issues of rigidly connected discs and stems, minimizes hysteresis, eliminates external connections and associated hardware, and simplifies assembly and disassembly.
F Stem Packing
Fully-adjustable, field-replaceable stem packing is certified to international fugitive emission standards.
G Blowout-Proof Stem
One-piece stem features blowout prevention ring located outside of the pressure boundary, as well as redundant blowout prevention mechanisms.
H Indexed Stem
Provides visual indication of disc/packing ring position after installation.
I Extended Stem Bearings
Hardened bearings provide maximum stem support.