Stucchi VD Series Screw-to-Connect Poppet Couplings
Stucchi VD Series Screw-to-Connect Poppet Couplings - Male / 1/2" BSP (VD12) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
📏 Find Your Thread Size
📏 Find Your Thread Size
Not sure if it’s BSPP, JIC, or NPT? We’ve got you covered.
Whether you're matching a 3" BSP Brass Ball Valve or identifying a hydraulic hose fitting, our thread chart makes the guesswork easy. Just grab a set of calipers (or even a tape measure), compare your fitting against our chart, and in most cases — boom — you’ll know exactly what thread you’ve got.
Still unsure? No worries. Snap a photo or two, send us the measurements, and we’ll help you confirm the thread so you can order with confidence.
💪 Built to Last Promise
💪 Built to Last Promise
Products we trust. Quality you can count on.
Every hose, fitting, clamp, valve and accessory we supply is carefully selected, used in our own workshop, and backed by our reputation for reliability. We don’t sell anything we wouldn’t use ourselves.
✔️ We crimp every hose assembly in-house for full quality control
✔️ We source only from trusted brands we’d stake our name on
✔️ We offer a no-fuss 2-year warranty on our hose assemblies
✔️ Most fittings, clamps and accessories carry manufacturer warranties from 12 months up to 10 years
Whether it’s under pressure or in harsh environments, our gear is built to last — and delivered fast.
🚚 Fast, Flexible Shipping
🚚 Fast, Flexible Shipping
Australia-wide delivery with options to suit your jobsite and your deadline.
Whether it’s a single hose or a pallet of fittings, we’ll get it to you fast — with flexible options for critical and non-critical needs.
✔️ We ship Australia-wide — satchels, cartons & pallets
✔️ Delivery typically takes 1–10 business days, depending on your location
✔️ Urgent order? Priority freight options available at checkout
✔️ Some items may ship direct from our supply partners to speed up delivery
✔️ Tracking details provided once your order is dispatched
Need it fast or want to organise your own freight? Let us know — we’re here to help.
Description
Description
Stucchi VD Series Screw-to-Connect Poppet Couplings
High-pressure performance with secure screw connection.
The Stucchi “VD” Series is a heavy-duty screw-to-connect hydraulic coupling featuring poppet style valving and high-strength carbon steel construction. Designed for demanding hydraulic circuits subject to pressure impulses, the VD Series combines the mechanical security of a threaded connection with the sealing reliability of poppet valving.
Manufactured from high-strength carbon steel with Cr III zinc plating and NBR sealing, the VD Series is interchangeable with ISO 14541 standard couplings and similar products on the market.
Key Specifications
- Interchange Standard: ISO 14541
- Valving Style: Poppet
- Connection System: Screw-to-connect
- Locking Mechanism: Threaded sleeve
- Connection Under Pressure: Allowed (up to 100 bar on one side)
- Material: Carbon Steel
- Treatment: Cr III Zinc Plating
- Seals: Nitrile (NBR)
- Available Threads: BSP, Metric (DIN 3852 / DIN 2353 / ISO 8434-1)
- Available Sizes: 1/4", 3/8", 1/2", 3/4", 1", 1-1/4"
- Operating Pressure: Up to 450 bar
- Flow Rate: Up to 378 L/min
- Temperature Range: -20°C to +100°C
Designed for Demanding Hydraulic Applications
The VD Series adds the resistance of a robust internal design to the security of a screw connection. This makes it particularly suited for hydraulic circuits subject to pressure impulses and heavy-duty operation.
The poppet valve with elastomer sealing ensures maximum sealing performance when disconnected, reducing fluid loss and contamination.
Performance Benefits
- Connection allowed with residual pressure (max 100 bar on one side)
- Poppet valve ensures superior sealing when disconnected
- Internal design reduces turbulence and pressure drop
- High resistance to impulse pressures
- Compact and durable construction
- Modular design allows multiple port configurations
- External O-ring provides visual confirmation of full connection
- Threaded sleeve protects male sealing surface
- Prevents accidental disconnection
- Designed to resist dirt ingress
Thread Configurations Available
Due to its flexible modular design, the VD Series is available in a range of port configurations:
- Metric (DIN 3852)
- Metric Tube (DIN 2353 / ISO 8434-1)
- BSP (DIN 3852)
- Bulkhead (DIN 2353 / ISO 8434-1)
- Other configurations available on request
Applications
- Mobile plant and construction equipment
- Forestry and agricultural machinery
- Industrial hydraulic systems
- High impulse hydraulic circuits
- Heavy-duty attachment connections
Built to handle pressure. Built to last.
Built to last, delivered fast.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.



