Name: 2-Valve Manifold
Brand: Yokogawa
SKU: 2-valve-manifold

For Absolute or Gauge Pressure Transmitters, Yokogawa offers a complete line of IEC 61518 compliant 2-Valve manifolds. Available in T-Style, H-Style, Wafer-Style, and Bottom Process Connection Style. Options include ASME B31.1 (Power) Compliant, ISO 15848 Compliant, and TA-Luft Compliant.

Diagram

Standard features include:

Integral metal-to-metal valve seat
Non-rotating needle
Cold rolled external stem threads
Metal-to-metal secondary needle seal (back seat)
Blow out proof needle
All non-wetted parts are 316 stainless steel

Standard Needle Valve

Designed with a maximum allowable (working) pressure of 10K psi with PTFE packing and 7,252 psi with graphite packing.

Features include:

Integral valve seat
Non-rotating needle
External stem thread
Blow-out proof needle
Metal-to-metal back seat

AMSE B31.1 (Power) Needle Valve

Meets the requirements of AMSE B31.1 (Power). Designed with a maximum allowable (working) pressure of 7,252 psi and graphite packing.

Features include:

Locking plate to eliminate unauthorized removal of the bonnet
Integral valve seat
Non-rotating needle
External stem thread
Blow-out proof needle
Metal-to-metal back seat

ISO 15848 Needle Valve

Available to meet Type 1 or Type 3 of the ISO 15848 standard. ISO FE Performance Data is available upon request. Designed with a maximum allowable (working) pressure of 6,092 psi.

Features include:

Locking pin to eliminate unauthorized removal of the bonnet
FKM O-ring needle seal
RGD (Rapid Gas Decompression) resistant
Complies with the requirements of TA-LUFT 2002
Integral valve seat
Non-rotating needle
External stem thread
Blow-out proof needle
Metal-to-metal back seat

TA-Luft Needle Valve

Complies with the German TA-Luft (Technical Guidelines for Air Pollution Control). Maximum allowable (working) pressure of 6,092 psi. Packing is reinforced PTFE.

Features include:

Cup and cone packing
Locking pin to eliminate unauthorized removal of the bonnet
Integral valve seat
Non-rotating needle
External stem thread
Blow-out proof needle
Metal-to-metal back seat

T-Style Traditional-Mount 2-Valve Manifold

1/2-inch NPT Female x Flanged

T-Style Traditional Mount

H-Style Traditional-Mount 2-Valve Manifold

Flanged x Flanged

H-Style

Wafer Traditional-Mount 2-Valve Manifold

1/2-inch NPT Female x Flanged

Vent ports on bottom face

Wafer Bottom-Process Connection 2-Valve Manifold

1/2-inch NPT Female x Flanged

Vent ports on process side

Wafer Bottom

Optional Anti-Tamper Head Unit

As an option, the valves can be operated with a special Anti-Tamper Key (AT-Key), which fits exactly in the key guide. Therefore, the valve can only be operated with the AT-Key.

In addition to this safety function, installing a padlock prevents the AT-Key from being inserted into the key guide. Operating the valve is no longer possible- protecting your equipment against unauthorized opening and closing. The valve can be locked into any position required.

Optional Stainless Steel Handwheel and Locking Plate Design

As an option, the valves can be ordered with Stainless Steel Handwheel and with an optional fitted locking plate. This design allows minimum handle movement and is ideal for protection against unauthorized closing of the valve.

Pipe Plugs and Vent Valves

1/4-inch NPT

Pipe Plug / Vent Valve material matches valve body material