Knife Gate Valves - TI3 Series | Wey Valves | DP Level Isolation
Knife Gate Valves - TI3 Series | Wey Valves | DP Level Isolation

Knife Gate Valves - TI3 Series | Wey Valves

WEY TI3 Knife Gate Valve – Level Transmitter Isolation

The WEY TI3 series is designed to isolate differential-pressure level transmitters installed on slurry tanks. Its short face-to-face dimension reduces the dead volume between the vessel and the instrument, limiting solids accumulation that may cause blocked connections or inaccurate level readings.

Technical Data

  • Nominal size: DN80 / 3″

  • Operating pressure: 0–10 bar

  • Flange connection: ASME Class 150

  • Face-to-face dimension: MSS-SP81

  • Body and gate: stainless steel 316 or 317

  • Stem: stainless steel 430F

  • Standard seat seal: Aflas

  • Operation: non-rising stem with 1/2″ square drive

  • Locking facility in open and closed positions

The transverse seal can be readjusted through lateral compression screws while the valve remains installed. The gate is mechanically supported in the closed position, while the guide geometry directs accumulated material back toward the flow passage.

Options and Accessories

  • Operation by 1/2″ ratchet

  • Hastelloy C body or gate

  • Aflas, FKM or PTFE seat seals

  • PTFE packing for chemical, food or chlorine service

  • One or two upstream or downstream flushing connections

  • Tank flange or ASME Class 150 adapter

Applications

Low- and high-consistency pulp tanks, bleaching chemicals, process slurries and vessels where the level transmitter must be removed without draining the tank.

FAQ

Is the TI3 suitable as a general pipeline valve?
No. It is specifically configured for isolating differential-pressure level instruments.

When are flushing connections required?
They are recommended when suspended or settling solids may accumulate around the seat or instrument connection.

Standard (Options)
  • ANSI
Material (Options)
  • 316/317 Stainless steel
Pressure Rating (Options)
  • 150 lbs
Seat (Options)
  • Aflas (Metal seat)

Datasheet and documents

Description

The TI3 model really is a unique design. It is designed for shut-off isolation of differential pressure level sensing. Unlike other transmitter isolating valves, which are only adapted from standard knife gate valves, the TI3 model was developed for the sole purpose of isolating the transmitter. The TI3 uses standard 1/2" socket drive.

Characteristics

  • Nominal sizes: 80 mm
  • Material: Stainless steel
  • Pressure rating: 0 – 10 bar
  • Flange drilling: ANSI Class 150
  • Face to face dimension: MSS-SP81

Details

The robust metal yoke enables the optimal, simple assembly of mechanical or inductive limit switches. The yoke can be removed from one side. This makes it easier to access the mechanical parts.

A unique transverse seal, consisting of a transverse seal profile and packing compound, makes the body bubble-tight towards the atmosphere.

The robust metal yoke enables the optimal, simple assembly of mechanical or inductive limit switches. The yoke can be removed from one side. This makes it easier to access the mechanical parts.

The transverse seal can be repacked at any time and under full pressure using the lateral packing screws.

The robust metal yoke enables the optimal, simple assembly of mechanical or inductive limit switches. The yoke can be removed from one side. This makes it easier to access the mechanical parts.

With its optimized gate geometry, accumulated media is pushed out of the gate guide and flushed out into the bore by the increased flow.

The robust metal yoke enables the optimal, simple assembly of mechanical or inductive limit switches. The yoke can be removed from one side. This makes it easier to access the mechanical parts.

In the closed end position, the gate is also mechanically supported.

Application Areas

Pulp and paper industry

e.g. Pulp Stock (Low to high density), Chemical solutions, bleaching agents ...

Material Of Construction

PartStainless Steel
Body316/317 Stainless steel
Gate316/317 Stainless steel
SealAflas
Topwork316/317 Stainless steel
Stem / Piston rod430F

Other materials upon request

Certificates

EU Certificate CE mark