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Description
The Crystal Quest 3900 is a brass control valve for commercial and industrial softeners and large filtration systems, with 3" BSP female inlet and outlet connections. Valve-only continuous service flow is 57.0 m³/h at a 1 bar pressure drop, with a peak of 74.0 m³/h.
Highlights
- Timer or meter-initiated regeneration, in filter or softener configuration
- Standard, NXT or NXT 2 controls with a backlit LCD display
- Downflow and upflow regeneration with adjustable cycles
- Brass valve body with EP/EPDM rubber components
- Manual lever override for maintenance and control
- Certified CE, DM174 and ACS
Details
Avermont Direct is an authorized Crystal Quest dealer. The 3900 valve is intended for industrial and commercial water softeners and large-scale filtration systems. Contact our team with your tank size, flow requirements and power supply if you need help choosing the timer or meter version and controller.
Need Help?
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
| Valve Model | 3900 |
| Valve Material | Brass; EP/EPDM rubber components |
| Inlet / Outlet | 3" BSP female |
| Tank Top Adapter | 6" flanged or 6" thread |
| Side Mount Adapter | 3" BSP female |
| Distributor Pilot | 90 mm (DN80) |
| Drain Line | 2" BSP |
| Brine Line (1800) | 1" NPT male |
| Continuous Service Flow | 57.0 m³/h at 1 bar pressure drop |
| Peak Service Flow | 74.0 m³/h at 1.8 bar pressure drop |
| Maximum Backwash Flow | 24.0 m³/h at 1.8 bar pressure drop |
| CV / KV | 65.0 gpm / 56.4 m³/h |
| Recommended Operating Pressure | 1.8 - 8.6 bar |
| Maximum Inlet Pressure | 8.6 bar |
| Hydrostatic Test Pressure | 20 bar |
| Water Temperature | 1 - 43°C |
| Ambient Temperature | 5 - 40°C, indoor use only |
| Power Supply | 230 VAC (NXT) / 100-240 VAC (NXT 2), 50/60 Hz, 60 VA, Class II |
| Controller Voltage | 24 VAC (NXT) / 24 VDC (NXT 2) |
| Power Consumption | 35 W (1 powerhead) / 60 W (2 powerheads) |
| Protection Rating | Controller IP 22, valve IP 44 |
| Weight (Valve With Controller) | 41.0 kg max |
| Certifications | CE, DM174, ACS |
- Standard version bypasses raw water during regeneration; the NBP version does not
- Flow figures are for the valve alone at 3.5 bar inlet, top mount
- Maximum relative humidity 80% up to 31°C, decreasing linearly to 50% at 40°C
Shipping
- Orders of $200 or more ship free within the contiguous United States. Orders under $200 ship for a flat $9.99.
- In-stock items (shown as “In Stock” on the product page) ordered before 1:00 PM Pacific Time on a business day typically ship within 1–3 business days. Delivery usually takes 3–7 business days after shipping.
- Backorder, Partial Backorder and Custom Order items are not covered by the 1–3 business day processing time. Their estimated restock or ship time is shown in the stock status on the product page before you order.
- Large items ship by freight and are typically delivered curbside. Smaller items ship by ground carrier such as FedEx or UPS.
- We ship to the 48 contiguous states. We do not ship to Alaska, Hawaii or P.O. boxes.
- Please inspect your delivery on arrival and report any concealed damage or missing parts within 24 hours.
Returns
- Returns can be requested within 30 days of delivery. Items must be unused, uninstalled, in new resalable condition and in their original packaging, including the pallet if delivered on one.
- Approved returns are subject to a 15% restocking fee, and return shipping costs are the customer’s responsibility unless the return is the result of our error.
- Installed or used products, custom and made-to-order items, clearance or final-sale items, and replacement parts and accessories are not eligible for return.
Full Shipping Policy Full Return Policy Questions? +1 (844) 455-3695