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Systèmes utilitaires Cleanroom
Pipe à vide propre par
An electropolished 316L sanitary tube network that distributes clean process vacuum through low-resistance orbital-welded mains, a serviceable clamp union, an isolated point-of-use branch, engineered supports and a controlled low-point drain.
- 50.8 mm main with 25.4 mm service branch
- 316L tube and fittings with electropolished bore
- Vacuum-compatible joints, isolation and low-point drainage
Introduction de produit
Clean Vacuum Piping is a complete modular display assembly for transferring central vacuum from a pump or receiver header to controlled production and laboratory users. The locked configuration uses a 50.8 mm OD rectangular 316L ring assembled from four straight tubes, four long-radius elbows and one 50.8 x 25.4 mm reducing tee. A two-section 25.4 mm drop with one small 90-degree elbow contains one manual sanitary diaphragm isolation valve and one point-of-use ferrule, while one low-point drain valve removes incidental condensate after safe isolation. One detachable main-line clamp union supports planned service; the remaining hygienic joints are prepared for crevice-controlled orbital butt welding. Three horizontal rails, two vertical stanchions, four footplates and four hygienic holders support the complete route independently. This is silver sanitary vacuum pipework, not the blue push-fit aluminum compressed-air network represented by ID 1925 and not the single point-of-use valve represented by ID 1934.
Key Features
A smooth electropolished internal finish reduces particle retention and gives inspectors a defined surface condition for clean utility service
The 50.8 mm main limits conductance loss while the 25.4 mm reducing branch concentrates isolation and equipment connection hardware at the point of use
Long-radius elbows and a swept reducing tee avoid the abrupt bore restrictions associated with small threaded plumbing fittings
Orbital-butt-weld preparation minimizes unnecessary crevices, while the single clamp union provides a deliberate removable maintenance boundary
A manual sanitary diaphragm valve isolates the branch without exposing a stem packing directly to the vacuum flow path
The sanitary point-of-use ferrule provides a defined cleanable interface for a project-selected closure, hose or rigid equipment connection
Three rails and six correctly sized holders carry pipe weight and restrain vibration without loading the valve or sanitary joints
Préoccupations du client produit
A clean vacuum network must preserve conductance and leak tightness while preventing condensate, particles, unsupported pipe loads and unsuitable elastomers from undermining the vacuum source or point-of-use cleanliness.
An undersized header can create excessive pressure loss, leaving the remote user with slower evacuation than the pump rating suggestsSize the 50.8 mm main and each 25.4 mm branch from simultaneous demand, route length, target absolute pressure and allowable conductance loss rather than pump connection size alone.
Numerous threaded joints and rough internal surfaces provide leak paths and retention sites that are difficult to inspectUse documented 316L hygienic tube, long-radius fittings and controlled orbital butt welds, reserving detachable clamp joints for defined service boundaries.
A valve selected only for positive pressure may leak inward or deform its seal when the line operates below atmospheric pressureConfirm the complete valve, diaphragm, gasket and clamp configuration for the required absolute-pressure range and helium or pressure-rise acceptance criterion.
Condensate can collect in an unsloped vacuum line, reducing effective bore and carrying liquid toward the receiver or pumpRoute the main to a defined low point, provide the drain shown in the assembly and empty it only after the branch is isolated and brought to a safe condition.
Pipe movement and poor hanger spacing can distort ferrules, load valve bodies and open small leaks during pump cyclingSupport straight runs independently on correctly sized hygienic holders, coordinate expansion allowance and avoid using process connections as structural anchors.
A clean stainless distribution line may be mistaken for a filter or separator that protects the pump from liquid and process carryoverSelect upstream traps, receivers, sterile filters or condensate protection for the actual process; this piping package distributes vacuum but does not remove contaminants.
Les applications typiques
Pharmaceutical cleanroom process-equipment vacuum distributionBiotechnology vessel, filter and transfer-skid evacuation headersAseptic filling and packaging machine vacuum utilitiesLaboratory central vacuum branches in controlled environmentsLyophilizer and vacuum-chamber utility connections downstream of appropriate protectionFood and personal-care hygienic vacuum conveying or deaeration services
Paramètres techniques
The catalogue display basis is one complete 316L sanitary vacuum distribution module with a 50.8 mm OD ring main and a 25.4 mm point-of-use drop. The fixed visible bill of material is four main straight tubes, two branch straight tubes, four long-radius 50.8 mm elbows, one 25.4 mm branch elbow, one reducing tee, one main-line clamp union, one manual diaphragm valve with a black handwheel, one take-off ferrule, one low-point drain valve with a black T-handle, three horizontal support rails, two vertical stanchions, four footplates and four hygienic pipe holders. ASME BPE-class 316L dimensions and an electropolished SF4-family bore provide the reference surface and geometry. Final wall thickness, support spacing, gaskets, weld procedure, leak test and usable absolute-pressure range remain selectable for the route and vacuum duty.
| Matériaux de base | UNS S31603 / 1.4404-class 316L stainless tube and fittings, 316L diaphragm-valve body, PTFE/EPDM wetted sealing and 304 stainless support hardware |
|---|---|
| Panneau épaisseur | 1.65 mm nominal wall for the representative 50.8 mm OD ASME BPE-class main tube |
| Largeur effective | 50.8 mm OD main header with one 25.4 mm OD point-of-use branch |
| Longueur maximale | Up to 6000 mm standard straight-tube length before project cutting, fitting and orbital welding |
| Acier face épaisseur | 0 mm separate steel facing; representative stainless support-rail wall is 1.5 mm |
| Densité Core | Approximately 8000 kg/m³ representative density for annealed 316L stainless steel |
| Conductivité thermique | Approximately 15 W/(m·K) near 20°C for representative 316L stainless steel |
| surface finie | Natural bright 316L exterior with electropolished internal surface to Ra max. 0.38 µm SF4-family basis, neutral weld color, black valve handwheel and black drain T-handle |
| Type joint | Orbital butt-welded 316L tube, elbows and reducing tee with one serviceable 50.8 mm sanitary clamp union and one 25.4 mm point-of-use clamp ferrule |
| Customisation | Disponible en fonction de l'application prévue et de l'environnement d'exploitation. |
Options disponibles
Main and branch diameters selected from required vacuum conductance and simultaneous demandMechanically polished or electropolished ASME BPE surface classes matched to the cleanliness planOrbital-welded, sanitary clamp or all-metal detachable maintenance boundariesManual, pneumatic or electrically actuated vacuum-compatible diaphragm isolationCapped ferrule, hose-tail or rigid equipment connection at each point of useAdditional receiver, liquid separator, sterile filter or trap supplied as a separately selected protection stageWall, ceiling, rack or skid support arrangement with project-specific holder spacingLow-point manual drain or isolated condensate collection pot for the expected moisture load
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