Burkert 00121084 – Type 0331 2/2-Way Media-Separated Solenoid Valve, Normally Closed
The Burkert 00121084 (article no. 121084) is a Type 0331 direct-acting pivoted armature solenoid valve in circuit function A (2/2-way, normally closed). Bürkert lists it as a complete valve with these features:
- 3.0 mm orifice (1/8 inch)
- 0 – 10 bar pressure range
- Brass body on a Bürkert flange (SFB) interface
- FKM seals
- 24 V coil
At rest, inlet port 1 (P) is closed. When the coil is energised, the valve opens and connects P to outlet port 2 (A).
Media Separation: Why the 0331 Is Different
Unlike plunger valves, the Type 0331 separates the coil system from the medium with a diaphragm. The process fluid never touches the pivoted armature or the magnetic parts. This makes the valve especially suitable for critical and aggressive media. Bürkert describes the pivoted armature technology as maintenance-free. The solenoid coil is moulded in chemically resistant epoxy (insulation class H).
Why FKM Seals
The FKM version of the 00121084 is Bürkert’s recommendation for:
- Oxidising acids and substances
- Hot oils with additives
- Salt solutions
- Waste gases
- Oxygen
With a brass body and FKM, the permissible medium temperature is 0 to +90 °C.
Key Technical Data – Burkert 00121084
- Manufacturer article: 121084 / 00121084 – Type 0331
- Function: 2/2-way, direct-acting, circuit function A (normally closed), media-separated
- Orifice: DN 3.0 mm
- Kv value (water): 0.12 m³/h (DC) / 0.15 m³/h (AC)
- Pressure range: 0 – 10 bar (works from zero pressure)
- Connection: Bürkert flange interface (SFB)
- Body / seal: Brass / FKM
- Coil voltage: 24 V, ±10 % voltage tolerance
- Power consumption: DC 11 W cold / 8 W warm; AC 30 VA inrush / 15 VA hold
- Switching time: AC 8 – 15 ms, DC 10 – 20 ms (opening and closing)
- Duty cycle: 100 % continuous operation (brass body)
- Medium temperature: 0 to +90 °C
- Ambient temperature: max. +55 °C
- Max. viscosity: 37 mm²/s
- Electrical connection: DIN EN 175301-803 form A, IP65 with cable plug
- Manual override: Integrated, for start-up and testing
- Weight: approx. 0.47 kg (metal body)
Flange Mounting and Manifolds
The flange version mounts on Bürkert single or multiple manifolds with G ¼ ports. These are available in anodised aluminium, stainless steel or brass, with up to 8 valve slots. Unused slots are closed with cover plates. A circlip (article 013372) is available to prevent the manual override from being operated by mistake.
Typical Applications
- Shut-off of aggressive or chemically active liquids and gases
- Chemical dosing and analysis equipment
- Hot oil and oxygen lines (FKM)
- Process systems where coil parts must stay free of the medium
Buy Burkert 00121084 from Atlantech Drives
- Genuine Bürkert valve, covered by a 12-month warranty
- Fast worldwide shipping
- Senior commercial advice to check circuit function, seal material and coil voltage against your type label
- Quick, no-obligation quotes. Get a quote today.
Related Bürkert Products
- Burkert 124955 Type 0331 3/2-Way Valve, Circuit Function T
- Burkert 42980 Type 0331 3/2-Way Valve, Brass, NBR
- Burkert 00040311 Service Kit for Type 0330/0331
- Burkert 314802 Cable Plug Type 2518 (Form A)
- All Burkert products
