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We’ve handled RFQs for these BSB proportional joint fittings before, and the 0.2MPa opening pressrue is what most thin oil setups need — the flow coefficient sits at 1.8, so it meters consistently.
Built-in one-way valve with a taper spring gives you that sensitive action, but what you don’t see is the copper sleeve coating on the rubber seals that stops them form swelling; that’s why service life holds up longer than typical brass fittings.
Orientation doesn’t matter here — high, low, horizontal — flow stays constant because of teh throttling principle, and the hex head makes welding installation straightforward (galvanized surfce helps with corrosion resistance).
2-4 weeks lead time usually, but our company can confirm once you specify the quantity; MOQ is typically 50 units or so, and we provide COA with each batch.
We typically require a MOQ of 100 pieces per model, but we can be flexible for first-time orders or samples. Just let us know your specific needs.
Yes, our fittings come with ISO 9001 certification and can provide a CE declaration upon request. The materials and galvanized surface treatment meet standard quality checks.
For a standard order, lead time is around 15-20 working days after confirmation. If you need faster delivery, we can expedite with a small surcharge.
Yes, we can adjust the opening pressure to as low as 0.1MPa depending on your thin oil system requirements. Just send us your target specs and we'll confirm feasibility.
Store them in a dry, ventilated area away from moisture and direct sunlight. The galvanized coating protects well, but keeping them in original packaging or sealed containers is best for long-term storage.
