Honeywell – DNS025-201 DNS/VNS Pressure and vacuum switches with stainless steel sensors
Discontinued by Honeywell — we can still source the original DNS025-201 (new, used or refurbished, subject to availability). Request a quote below.
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Quick facts
| Availability | Confirmed on request |
| Category | Honeywell Building Sensors & Detectors |
| Lifecycle | Discontinued |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
Can I still buy the DNS025-201 now that it is discontinued?
Yes. Honeywell has discontinued the DNS025-201, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.
When can DNS025-201 be shipped?
DNS025-201 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up DNS025-201 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for DNS025-201 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for DNS025-201, subject to availability and destination.
DNS/VNS Pressure and vacuum switches with stainless steel sensors (1.4571) are are suitable for monitoring and controlling pressures in chemical plants, process engineering and any situation where the pressure of aggressive liquids and gases must be monitored. All components of the sensor system are made from highquality stainless steel (1.4571) and welded using the latest methods without filler metals. The pressure sensor is gasket free plasma welded.It comes with a robust housing made of seawater resistant die cast aluminium GD Al Si 12. Switching differential is not adjustable with DNS/VNS - 201 types. Switching differential is adjustable with DNS/VNS - 203 types. DNS/VNS - 351 types are chemical versions(switch ing housing with chemical protection) and Hysteresis is not adjustable for these types.
Features & Benefits:
The DNS and VNS series are calibrated for falling pressure
This means that the adjustable switching pressure on the scale corresponds to the switching point at falling pressure
The reset point is higher by the amount of the switching differential.
High quality stainless steel components of the sensor system
Certifications:
SIL2 according IEC 61508-2
Honeywell FEMA, Honeywell DNS025-201 — Pressure switches of the DNS series are suitable for monitoring and controlling pressures in chemical plants, process engineering and any situation where the pressure of aggressive liquids and gases must be monitored. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.
Specifications
Product
| Lifecycle | Discontinued by Honeywell |
| Brand line | FEMA, Honeywell |
Others
| Overall Width | 112 Millimeter-PRD |
| Minimum Operating Ambient Temperature | -25 Degrees Celsius |
| Minimum Media Temperature | -25 Degrees Celsius |
| Maximum Operating Ambient Temperature | 70 Degrees Celsius |
| Maximum Media Temperature | 70 Degrees Celsius |
| Brand | FEMA, Honeywell |
| Switch Configuration | SPDT Microswitch 250; Capacity 5 A Inductive, 8 A Resistive |
| Scale Calibration | falling pressure |
| Regulatory Approvals | SIL 2 according IEC 61508-2 Watt |
| Pressure Type | Overpressure Relative, Overpressure/Relative, overdruk relatief, sobrepresión relativa, surpression relative, Überdruck relativ |
| Mounting Type | Pressure Gauge Connection inch |
| For Use With | Chemical Plants; Process Engineering volt |
| Electrical Connection | Plug DIN EN 175301 |
| Connection Type | Internal Thread G1/4 in, External Thread G1/2 in |
Ordering codes
| Part numbers on this product page | DNS025-201, DNS025-351, DNS025-513, DNS06-201, DNS06-351, DNS1-201, DNS1-351, DNS10-201, DNS10-201-S, DNS10-203, DNS10-351, DNS10-351-S, DNS16-201, DNS16-203, DNS16-513, DNS16-513-S, DNS3-201, DNS3-351, DNS3-576, DNS6-201, DNS6-201-S, DNS6-203, DNS6-307-S, DNS6-351, VNS111-201 |
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