Male to female threaded 320 bar pressure gauge isolation valve

The JJM1 high-pressure gauge needle valve is precision CNC-machined from forged 316 stainless steel to ensure secure pressure instrument isolation. Featuring an integrated male-to-female threaded layout for seamless gauge connectivity and a rugged T-bar handle, it provides bubble-tight shut-off and fine throttling under severe operational pressures up to 320 bar.

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Detailed Product Introduction

The JJM1 series high-pressure stainless steel gauge needle valve is an instrumentation-grade fluid control solution specifically developed for the secure isolation, calibration, and protection of pressure monitoring instruments. Machined from high-density forged stainless steel square bar-stock, this high-integrity valve incorporates an asymmetrical threaded profile—featuring a male pipeline connection on one side and a female instrument union adapter on the other—to facilitate direct, space-saving mounting of pressure gauges or transmitters. The valve utilizes a fine-pitched stem configuration with an ergonomic T-bar handle to deliver precise throttling and linear flow control during system dampening. Rated safely for demanding environments up to 320 bar (4640 PSI), it stands as the standard isolation safeguard against pressure spikes, hazardous media backflow, and fugitive leaks across industrial boiler arrays, hydraulic test skids, and oil refinery process manifolds.

Technical Specifications

Valve Classification: JJM1 Series Heavy-Duty High-Pressure Gauge Needle Valve
Body Framework Pattern: Single-piece high-density forged square bar-stock architecture
Primary Body Metallurgy: Premium Forged Stainless Steel 316 (SS316) / Alternative SS304
Stem and Disc Metallurgy: Hardened Stainless Steel 316 conical stem tip resisting high-velocity erosion
Actuation Interface: Heavy-duty solid stainless steel T-bar handle secured with a top fastening screw
Upper Sealing Matrix: High-purity adjustable PTFE packing standard / High-density flexible Graphite for thermal configurations
Connection Interface Style: Male Threaded Input to Female Threaded Output (Union adapter transition)
Nominal Size Capacity: DN6 configuration standard (Available scalable sizes from DN6 up to DN15)
Maximum Mechanical Pressure: PN320 (32 MPa / 320 Bar / Approx. 4640 PSI hydrostatic tier)
Operational Temperature Range: Continuous performance from -29°C up to +200°C with standard soft seals
Stem Protection Guard: Integral internal back-sealing geometry prevents operational stem blowout under full load
Seat Design Technology: Metal-to-metal integrated conical body seat layout preventing deformation
Thread Engagement Standards: Precision NPT, BSPT, or ISO metric threads according to ASME B1.20.1 specifications
Sealing Performance Rating: Rate A per EN 12266-1 / Exceeds ANSI Class VI ensuring zero bubble leakage
Bonnet Safety System: Heavy-walled threaded union bonnet structure with high torque engagement security
Internal Flow Passages: Smooth-bore micro-internal paths optimized to minimize fluid turbulence and cavitation
Applicable Media Profile: High-pressure hydraulic oils, nitrogen gas, natural gas, steam, and mild corrosive process chemicals
Shell Hydrostatic Validation: 100% factory verified through strict nitrogen/hydrostatic pressure decay protocols
Exterior Shell Aesthetics: Matte-brushed fine sandblasted finish with permanently laser-etched model, pressure, and size metrics
Cleanliness Engineering: Clean-room degreased, particles evacuated, and fitted with protective vinyl caps for shipment
Design Standards Reference: Developed and verified in accordance with ASME B16.34, API 598, and JB/T 7747 specifications