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Widely used in many industries, Mac-Weld high pressure Instrument Needle Valves provide quality and reliable function to throttle, regulate and isolate gaseous and aggressive non-viscous liquid services. Mac-Weld Gauge Root Valves offer multi-function capability to isolate, calibrate and vent gauge, pressure switches and static instrument applications.

  • Macweld Gauge Root Valve

    Mac-Weld Gauge Root Valve

    The Mac-Weld Gauge Root Valve provides an efficient means of mounting gauge and static instrumentation.  Mac-Weld Gauge
    Root Valves offer a multi-function capability to isolate, calibrate and vent gauge, pressure switches and static
    instrument applications.

    Features include:
    • 316L Stainless Steel Body, stem and trim
    • 6000 psig @ 1000 F (414 bar @ 380 C)
    • PTFE Packing
    • Non-rotating trim provides bubble tight shut-off
    • Optional availability: NACE certified wetted parts and graphoil packing

    Learn more here.

  • MacWeld 3 Valve Direct Mount T Type Manifold

    Mac-Weld’s 3 Valve Direct Mount T Type Manifold with drain/vent for differential pressure instrumentation. The manifold has one equalizer valve, two isolation valves and two drain/vent ports.

    Features include:

    • 316L Stainless Steel Body, stem and trim
    • 6000 psig @ 1000 F (414 bar @ 380 C)
    • PTFE Packing
    • Non-rotating trim provides bubble-tight shut-off
    • Optional availability: NACE certified wetted parts and graphoil packing
    • Flange a-rings and mounting bolts included with manifold

  • MacWeld 3 Valve Manifold

    Mac-Weld’s 3-Valve Remote Mount Manifold with drain/vent for differential pressure instrumentation. The manifold has one equalizer valve, two isolation valves and two drain/vent ports.

    Features include:
    • 316L Stainless Steel Body, stem and trim
    • 6000 psig @ 1000 F (414 bar @ 380 C)
    • PTFE Packing
    • Non-rotating trim provides bubble tight shut-off
    • Optional availability: NACE certified wetted parts and graphoil packing

  • Macweld GV 2 Valve Manifold

    Mac-Weld’s GV 2 – Valve Manifold directly mounts to in-line gauge or static instruments to provide single block and bleed for isolation and drain/vent capability.

    Features include:
    • 316L Stainless Steel Body, stem and trim
    • 6000 psig @ 1000 F (414 bar @ 380 C)
    • PTFE Packing
    • Non-rotating trim provides bubble tight shut-off
    • Optional availability: NACE certified wetted parts and graphoil packing