Instrument Manifolds

Integral Block & Bleed Monoflange Needle Valve -- SS316

Monoflange needle valves that combine the function of a traditional primary process root valve and vent/bleed valve into a single compact flanged body. Directly mounts between the process flange and instrument flange, eliminating threaded nipples, adapters, and potential leak paths. One-piece SS316 forged barstock body rated to 6,000 PSI with non-rotating needle tip and blow-out proof stem for reliable process isolation and safe venting.

Key Applications

Process flange instrument isolationGauge root replacementTransmitter primary isolationSample point monoflangeReactor nozzle instrumentation
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Technical Specifications

Product Type Integral Block & Bleed Monoflange Needle Valve -- SS316
Category Instrument Manifolds
Size Range 1/2" to 48" (DN15 to DN1200)
Pressure Class 150# to 2500# (PN10 to PN420)
End Connections Flanged, Threaded, Socket Weld, Butt Weld
Operation Manual, Gear Operated, Electric Actuated, Pneumatic Actuated
Standards ASME B16.34, API 600, API 602, BS 1873, DIN 3352

Material Options

Carbon Steel

ASTM A216 WCB, A105, A350 LF2

Stainless Steel

SS304, SS316, SS316L, SS321, SS347

Alloy Steel

ASTM A217 WC6, WC9, C5, C12

Duplex Steel

F51, F53, F55, Super Duplex

Exotic Alloys

Monel, Hastelloy, Inconel, Titanium

Bronze & Brass

Gunmetal, Aluminum Bronze, Naval Brass

Purchase Options

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Features & Benefits

High Performance

Designed for reliable operation under demanding conditions with minimal maintenance requirements.

Quality Assurance

Complete material traceability, mill test certificates, and compliance with international standards.

Wide Application Range

Suitable for Process flange instrument isolation, Gauge root replacement, Transmitter primary isolation, Sample point monoflange, Reactor nozzle instrumentation and many other industrial applications.

Expert Support

Technical assistance for valve selection, sizing, and application engineering from our experienced team.

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