Pneumatic Hex Socket Blanking Plug | Nickel-Plated Brass Port Seal (1/8" to 1/2")
Pneumatic Hex Socket Blanking Plug | Nickel-Plated Brass Port Seal (1/8" to 1/2")
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Short Product Description
Short Product Description
Securely seal unused air ports on your pneumatic manifolds and solenoid valves with ourHex Socket Blanking Plugs. Machined from premiumnickel-plated brass, these heavy-duty threaded plugs offer exceptional rust resistance and high-pressure durability. The internal hex (Allen key) drive allows for a flush, space-saving installation. Available in standard1/8", 1/4", 3/8", and 1/2" PT threads. Need help sizing your pneumatic fittings?Sun Cheong Computer Co. Ltd.has over 20 years of automation expertise. Visit our Sham Shui Po physical store for instant pickup and on-site thread matching!
Key Features
Key Features
- Internal Hex Socket Design: Allows for a flush, low-profile installation using a standard Allen key, perfect for tight spaces.
- Nickel-Plated Brass: Offers superior rust and corrosion resistance compared to standard steel, ensuring easy removal even years later.
- High-Pressure Sealing: Precision-machined threads safely handle the high pressures of industrial air compressors and automated systems.
- Clean Aesthetics: The sleek silver finish blends perfectly with aluminum manifolds and modern pneumatic components.
- Multiple Sizes Available: Choose from 1/8" (8mm length), 1/4" (9mm length), 3/8" (11.5mm length), or 1/2" (14mm length) to match your specific ports.
Full Product Description
Full Product Description
Flush and Secure Port Sealing
When building custom pneumatic circuits or modifying air manifolds, you often end up with unused air ports that need to be completely sealed to maintain system pressure. The Pneumatic Hex Socket Blanking Plug is the professional solution. Unlike bulky hex-head bolts, this plug features an internal hex drive. This allows the plug to sit completely flush with the surface of your manifold or solenoid valve, saving valuable space in tight control cabinets and preventing accidental snagging.
Premium Nickel-Plated Brass Durability
Air compressors generate moisture, which can quickly rust standard steel plugs, making them impossible to remove later. These blanking plugs are constructed from high-density brass and finished with a premium pearl nickel plating. This combination provides the ultimate defense against rust, corrosion, and the high-pressure stress of industrial pneumatic systems.
💡 Pro Tip from Our Technicians
"To ensure a 100% airtight seal, you must wrap the threads of these plugs with 2 to 3 layers of Teflon tape (plumber's tape) before installation. Always use the correct size Allen key (hex wrench) to tighten them—using the wrong size can strip the internal socket! If you are repairing a machine and aren't sure if your port is 1/8", 1/4", 3/8", or 1/2", don't guess. Bring your manifold directly to our Sham Shui Po store. Our team at Sun Cheong Computer Co. Ltd. will use our digital calipers to test-fit the exact plug you need on the spot."
Technical Specifications
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Pneumatic Blanking Plug / Threaded Port Seal |
| Drive Type | Internal Hexagon (Requires Allen Key) |
| Material | Nickel-Plated Brass |
| Available Thread Sizes | PT 1/8" | PT 1/4" | PT 3/8" | PT 1/2" |
| 1/8" (1分) Length | 8.0 mm |
| 1/4" (2分) Length | 9.0 mm |
| 3/8" (3分) Length | 11.5 mm |
| 1/2" (4分) Length | 14.0 mm |
| Fluid Type | Compressed Air, Water, Oil |
Delivery Options
Delivery Options
- Local delivery within Hong Kong and in-store pickup.
- Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
- Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
- Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
- In-store pickup details (location and time) will be confirmed by email or phone message.
- Delivery times are estimates and may be affected by weather or unforeseen circumstances.
FAQ Section
FAQ Section
- Do I need to use thread sealant with these plugs?Yes. Because these are standard tapered pneumatic threads, you must wrap them with Teflon tape (plumber's tape) or apply a liquid thread sealant before screwing them in to guarantee a 100% leak-proof seal.
- What tool do I need to install these plugs?You will need a standard metric Allen key (hex wrench). The internal hex design allows you to apply significant torque for a tight seal without the tool slipping.
- How do I measure my port to know which size to buy?Pneumatic thread sizes do not match ruler measurements. A 1/8" port has an inner diameter of roughly 8.6mm; a 1/4" port is ~11.5mm; a 3/8" port is ~15mm; and a 1/2" port is ~18.6mm. If you are unsure, bring your part to our store for professional sizing.
Target Users / Applications
Target Users / Applications
- Factory Automation Maintenance: Sealing unused ports on multi-station solenoid valve manifolds to prevent air leaks.
- Custom Air Ride Suspension Builders: Plugging extra ports on air compressor tanks and distribution blocks in automotive setups.
- DIY Robotics & Pneumatics: Creating clean, low-profile air circuits where protruding hex bolts would interfere with moving parts.
- Plumbing & Fluid Control: Capping off unused water or oil lines in custom cooling systems.
