A Dust Cover is a protective cap or plug designed to seal exposed equipment openings, pipe ends, couplings, and valves when they are not in active operation.
Product Specifications
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Item |
Specification |
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Compatibility |
Fits A-A-59326, DIN 2828, EN 14420-7, Bauer, Perrot, Guillemin, Storz & ISO 7241 |
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Materials |
304, 316, 316L Stainless Steel; NBR, EPDM, FKM, PTFE seals |
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Size Range |
1/2"–8" (DN15–DN200) |
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Pressure |
Up to 16 bar (230 PSI) |
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Surface Finish |
Ra 3.2 μm standard; Ra 0.8 μm optional |
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Precision |
CNC machined, ±0.03 mm tolerance |
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Features |
Replaceable gasket design with integrated lanyard eyelets |
Available Selection Options
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Item |
Available Options |
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Connection Type |
Bauer, Perrot, Guillemin, Camlock, Storz and customized interfaces |
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Nominal Size |
1/2"–8" / DN15–DN200 |
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Body Material |
304, 316, 316L stainless steel; customized alloys available |
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Gasket Material |
NBR, EPDM, FKM, PTFE |
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Surface Finish |
Ra 3.2 μm standard; Ra 0.8 μm optional |
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Customization |
Dimensions, lanyard, logo, gasket, locking structure and packaging |
Key Features
Silica Sol Investment Casting: Achieves an Ra 3.2 surface finish and uniform wall density to eliminate pressure-shell porosity under working pressures up to 16 bar.
Anti-Galling Lug Surface: CNC-machined cam contours eliminate micro-burrs, reducing mating torque by 25% and preventing lug seizure during frequent coupling cycles.
Vibration-Resistant Cam Locking: Profile-matched contours keep covers securely clamped without loosening during ISO tank rail and road transport.
Self-Centering Sealing Lip: Internal lip geometry distributes gasket compression evenly across the seal face, preventing vacuum drop and low-pressure fluid loss.
Coupling Compatibility
A-A-59326 & DIN 2828: Fully interchangeable with MIL-C-27487 and DIN standard Camlock quick-connect fittings without system modification.
Guillemin Systems: Precision-matched locking-lug geometry for standard French symmetrical couplings, with optional stainless steel loss-prevention lanyards.
Storz Couplings: Precision-matched to Storz lug distances (KA 31mm to 133mm; Sizes D, C, B, A).
Bauer & Perrot: Engineered for 2"–8" spherical lever-lock couplings, accommodating outer ring tension and sealing gasket compression.
Custom Interfaces: Machined to 2D/3D CAD or physical samples with application-specific NBR, EPDM, or FKM seals.
OEM & Custom Options
Pours custom alloys including Duplex 2205, Hastelloy C276, and 316L to reduce equipment replacement costs in high-sulfur or marine environments.
In-house laser etching and cast-in logo capabilities for OEM part numbering and customer brand identification.
Tailor lanyard lengths, PVC cable coatings, and factory pre-assembled gaskets or secondary safety latches per specification.
Packaging & Logistics
Flexible Minimum Orders
MOQ starts at 50 pieces per size for standard stock, and 100 pieces for custom OEM designs.
Standardized Packaging
Polybagged covers packed in 5-ply cartons (max 20 kg per box) on ISPM-15 heat-treated wooden pallets.
Defined Lead Times
Orders dispatched in 20 days for standard stock and 35 days for full-container OEM production runs.
Trade Terms & Barcoding
Full support for EXW, FOB Shanghai/Ningbo, CIF, and DDP/DAP terms with custom outer carton barcoding.
FAQ
Q: When is the Ra 0.8μm optional finish recommended over the standard Ra 3.2μm?
A: Ra 0.8μm is recommended for pharmaceutical, food-grade, or cleanroom applications requiring minimal bacterial adhesion surfaces; Ra 3.2μm is sufficient for standard industrial dust protection use.
Q: What does "zero-lead-time dispatch SLA" actually require?
A: This applies only to items covered under an active rolling safety stock agreement, which requires a minimum quarterly forecast commitment.
Q: Does the anti-galling lug design require any special lubricant during installation?
A: The anti-galling surface is designed for dry, lubricant-free operation, though a light food-grade silicone spray is recommended after every 500 coupling cycles in high-frequency industrial use.
Q: What happens if a batch fails PMI verification or dimensional inspection after arrival at the destination port?
A: Buyers must submit a claim with test evidence within 15 days of port arrival, after which a credit note or free replacement is issued within 10 business days upon verification.
Q: What is the price and lead time difference between standard 316L and the Duplex 2205 or Hastelloy C276 options?
A: Duplex 2205 typically costs 40-60% more than 316L with a 10-15 day longer lead time, while Hastelloy C276 costs 3-5x more with an additional 20-25 days.
Q: Can you provide EN 10204 3.1 material certificates?
A: Yes. EN 10204 3.1 inspection certificates can be provided for applicable production batches, including chemical composition and relevant mechanical test results.
