IRELAND 170300 Cryogenic Aluminum Angle Valve for Cold Box Installation

Overview

The IRELAND 170300 Cryogenic Aluminum Angle Valve is engineered for reliable isolation and flow control in ultra-low-temperature process environments—particularly within cold boxes of air separation units (ASUs), liquefied natural gas (LNG) facilities, and cryogenic chemical processing systems. Constructed from high-purity ASTM B209 Grade 5083 aluminum alloy, the valve exhibits exceptional resistance to thermal shock, low-temperature embrittlement, and stress corrosion cracking below −196 °C. Its angle-body configuration minimizes pressure drop while enabling compact installation in space-constrained cold box modules. The valve operates on a linear stem motion principle, with precise seat-to-plug alignment maintained under thermal cycling through a rigid yoke-supported bonnet assembly. Unlike standard industrial valves, the 170300 integrates a purpose-built extended bonnet that thermally isolates the packing zone from the cryogenic process fluid—reducing heat leak and preserving packing integrity across repeated thermal cycles from −220 °C to +200 °C.

Key Features

• Extended bolted bonnet with stainless steel low-temperature extension sleeves (valve stem and bonnet) to minimize conductive heat transfer between cryogenic media and packing material.
• Reusable metal seat combined with a replaceable soft-seal disc—validated to meet bubble-tight shutoff per ISO 5208 Class A leakage requirements at cryogenic temperatures.
• Cryogenically optimized straight-through packing box design, incorporating low-outgassing, low-creep graphite-based packing compatible with oxygen service (per CGA G-4.4).
• Butt-weld body ends conforming to ASME B16.25 and ISO 853 standards; external thread + yoke interface enables secure, alignment-free bonnet attachment.
• Structural integrity verified across full operating range: DN10–DN400, PN10–PN50, −220 °C to +200 °C—with mechanical testing performed per EN 12516-1 for shell strength and fugitive emission compliance per ISO 15848-1 (Level A).
• Standard metallic gasket (Inconel 718 or 316L SS) between body and bonnet ensures leak-tight performance under thermal cycling and vacuum-backed cold box conditions.

Sample Compatibility & Compliance

The 170300 is qualified for continuous service with nitrogen, oxygen, argon, helium, hydrogen, and hydrocarbon streams encountered in ASU, petrochemical, and cryogenic transport applications. It meets material traceability requirements per EN 10204 3.1 and is documented for use in safety-critical loops per IEC 61511 (SIL2-capable when actuated). All wetted components comply with ASTM A351 CF8M/CF3M for optional stainless extensions and are cleaned and certified per ASTM G93 for oxygen service. The valve design supports integration into ASME Section VIII Div. 1 pressure vessels and adheres to cold box fabrication standards outlined in EIGA Doc. 111/06 and ISO 21028-1 for cryogenic system integrity.

Software & Data Management

While the 170300 is a manual or actuator-ready mechanical valve (no embedded electronics), its configuration data—including dimensional drawings, material certifications (MTRs), pressure-temperature rating charts, and fugitive emission test reports—are fully integrated into IRELAND’s digital asset library. Customers receive native CAD models (STEP, IGES), P&ID symbology packages, and compliance documentation aligned with ISO 15536-2 for digital twin readiness. For automated installations, the valve is compatible with industry-standard actuators supporting HART, Foundation Fieldbus, or Profibus PA protocols—enabling full audit trail logging per FDA 21 CFR Part 11 when deployed in GMP-regulated pharmaceutical cryo-storage systems.

Applications

• Air separation plants: liquid oxygen/nitrogen/argon feed, reboiler bypass, and waste stream isolation within aluminum cold boxes.
• LNG receiving terminals: LNG transfer line isolation, boil-off gas (BOG) recirculation control, and emergency shutdown (ESD) loops.
• Cryogenic transportation: tank truck and railcar loading/unloading manifolds requiring repeatable, bubble-tight closure at −196 °C.
• Hydrogen infrastructure: liquid hydrogen (LH₂) storage and distribution systems compliant with SAE J2601 and ISO 19880-1.
• Research facilities: superconducting magnet cooling circuits, quantum computing dilution refrigerators, and cryogenic test stands.

FAQ

Is this valve suitable for oxygen service?
Yes—the 170300 is cleaned, tested, and certified per CGA G-4.4 and ASTM G127 for gaseous and liquid oxygen service up to 100% O₂ concentration.

Can it be used in vacuum-jacketed cold boxes?
Yes—the extended bonnet and metallic gasket design prevent helium permeation and maintain seal integrity under vacuum-backed insulation conditions.

What actuation options are available?
Pneumatic spring-return (fail-open/fail-close), electric modulating, and electro-hydraulic actuators are supported; all configurations retain full traceability and SIL2 compatibility.

Does it support fire-safe certification?
An optional fire-safe version (API RP 2000 / ISO 10497) is available with graphite-integrated secondary sealing and post-fire tightness verification.

Are dimensional drawings and material test reports provided?
Yes—all orders include EN 10204 3.1 material certificates, ASME U-1 stamp documentation (where applicable), and ISO-compliant dimensional drawings in native CAD format.