Flotect Flow Switches
Series V6 Flotect Flow Switch
Monitor flow in 1/2" to 2" pipe — Explosion-proof
Surprisingly compact, the Series V6 Flotect Flow Switch is engineered to specifically monitor liquid, gas, or air flows. Operation is simple and dependable with no mechanical linkage as the flow switch is magnetically actuated. The lower body holds the flow vane and one magnet, which controls the switch actuating magnet in the separate upper housing.
In most applications the switch is normally off with the pipeline flow forcing the vane against the vane spring. As the flow decreases the vane spring pushes back the vane, actuating the switch to signal an alarm or shutdown. Tees are available for installation in pipelines from 1/2" to 2", with bushings added the unit is easily adapted to 1/4" and 3/8" piping.
Typical Uses
- Protects pumps, motors and other equipment against low or no flow
- Controls sequential operation of pumps
- Automatically starts auxiliary pumps and engines
- Stops liquid-cooled engines, machines and processing when coolant flow is interrupted
- Shuts down burner when air flow through heating coil fails
- Controls dampers according to flow
- Signals alarm when emergency shower is in use
Specifications
| Service | Gases or liquids compatible with wetted materials. |
| Wetted Materials | Standard V6: Vane 301 SS; Lower Body brass or 303 SS; Magnet ceramic; Other 301/302 SS; Tee brass, iron, forged steel, or 304 SS. Low Flow: Lower Body brass or 303 SS; Tee brass or 304 SS; Magnet ceramic; O-ring Buna-N standard, Viton® optional. |
| Temperature Limits | -4 to 220°F (-20 to 105°C) standard; MT high-temp option 400°F (205°C) [MT not UL/CSA/ATEX]. ATEX ambient: -4 to 167°F (-20 to 75°C); process: -4 to 220°F (-20 to 105°C). |
| Pressure Limit | Brass/no-tee 1000 psig (69 bar); 303 SS/no-tee 2000 psig (138 bar); Brass tee 250 psi (17.2 bar); Iron tee 1000 psi (69 bar); Forged/SS tee 2000 psi (138 bar); Low flow 1450 psi (100 bar). |
| Enclosure Rating | Weatherproof and Explosion-proof. UL & CSA listed: Class I Groups A, B, C, D; Class II Groups E, F, G. ATEX 0344 II 2 G EEx d IIC T6 (KEMA 04ATEX2128). |
| Switch Type | SPDT snap switch standard; DPDT optional. |
| Electrical Rating | UL: 5A @ 125/250 VAC. CSA & ATEX: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC. MV option: 0.1A @ 125 VAC. MT option: 5A @ 125/250 VAC. |
| Electrical Connections | UL: 18 AWG, 18" (460 mm) leads. CSA: terminal block. |
| Upper Body | Brass or 303 stainless steel. |
| Conduit Connection | 3/4" male NPT standard; 3/4" female NPT on junction box models. |
| Process Connection | 1/2" male NPT on models without tee. |
| Mounting Orientation | Any position; actuation/deactuation rates in charts are based on horizontal pipe runs. |
| Set Point Adjustment | Standard V6: none (without-tee models vane is trimmable). Low flow: field adjustable within range shown. |
| Weight | 2 to 6 lb (0.9 to 2.7 kg) depending on construction. |
| Options | Custom calibration, bushings, PVC tee, reinforced vane. |
| Agency Approvals | UL, CSA, CE and ATEX. |
Low Flow Version
The Low Flow V6, like the standard model, features a leak-proof solid brass lower housing and magnetically actuated snap switch. The machined tee is available in brass or stainless steel with all wetted parts of like materials and Buna-N or optional Viton® O-Rings. The actuating mechanism is a plunger opposing a spring with an adjustable bypass valve to set the actuation rate. Piping connections are 1/2" female NPT for in-line mounting. Units are explosion-proof and rated to 1450 psig (100 bar). UL, CSA and ATEX listings match standard V6. Weight is 1‑1/2 lbs.
Available Models
Brass Construction — SPDT Switch
| Model | Upper/Lower Body | Tee | Size | Switch |
|---|---|---|---|---|
| V6EPB-B-S-1-B | Brass | Brass | 1/2" NPT | SPDT |
| V6EPB-B-S-2-B | Brass | Brass | 3/4" NPT | SPDT |
| V6EPB-B-S-3-B | Brass | Brass | 1" NPT | SPDT |
| V6EPB-B-S-4-B | Brass | Brass | 1-1/4" NPT | SPDT |
| V6EPB-B-S-5-B | Brass | Brass | 1-1/2" NPT | SPDT |
| V6EPB-B-S-6-B | Brass | Brass | 2" NPT | SPDT |
| V6EPB-B-S-6-0 | Brass | Brass | No Tee | SPDT |
| V6EPB-B-S-LF | Brass | Brass | 1/2" NPT | SPDT |
Brass Construction — DPDT Switch
| Model | Upper/Lower Body | Tee | Size | Switch |
|---|---|---|---|---|
| V6EPB-B-D-1-B | Brass | Brass | 1/2" NPT | DPDT |
| V6EPB-B-D-2-B | Brass | Brass | 3/4" NPT | DPDT |
| V6EPB-B-D-3-B | Brass | Brass | 1" NPT | DPDT |
| V6EPB-B-D-4-B | Brass | Brass | 1-1/4" NPT | DPDT |
| V6EPB-B-D-5-B | Brass | Brass | 1-1/2" NPT | DPDT |
| V6EPB-B-D-6-B | Brass | Brass | 2" NPT | DPDT |
| V6EPB-B-D-6-0 | Brass | Brass | No Tee | DPDT |
| V6EPB-B-D-LF | Brass | Brass | 1/2" NPT | DPDT |
Brass Upper & Lower with Iron Tee — SPDT Switch
| Model | Upper/Lower Body | Tee | Size | Switch |
|---|---|---|---|---|
| V6EPB-B-S-1-MI | Brass | Iron | 1/2" NPT | SPDT |
| V6EPB-B-S-2-MI | Brass | Iron | 3/4" NPT | SPDT |
| V6EPB-B-S-3-MI | Brass | Iron | 1" NPT | SPDT |
| V6EPB-B-S-4-MI | Brass | Iron | 1-1/4" NPT | SPDT |
| V6EPB-B-S-5-MI | Brass | Iron | 1-1/2" NPT | SPDT |
| V6EPB-B-S-6-MI | Brass | Iron | 2" NPT | SPDT |
Brass Upper & Lower with Iron Tee — DPDT Switch
| Model | Upper/Lower Body | Tee | Size | Switch |
|---|---|---|---|---|
| V6EPB-B-D-1-MI | Brass | Iron | 1/2" NPT | DPDT |
| V6EPB-B-D-2-MI | Brass | Iron | 3/4" NPT | DPDT |
| V6EPB-B-D-3-MI | Brass | Iron | 1" NPT | DPDT |
| V6EPB-B-D-4-MI | Brass | Iron | 1-1/4" NPT | DPDT |
| V6EPB-B-D-5-MI | Brass | Iron | 1-1/2" NPT | DPDT |
| V6EPB-B-D-6-MI | Brass | Iron | 2" NPT | DPDT |
Stainless Steel Construction — SPDT Switch
| Model | Upper/Lower Body | Tee | Size | Switch |
|---|---|---|---|---|
| V6EPS-S-S-1-S | Stainless Steel | Stainless Steel | 1/2" NPT | SPDT |
| V6EPS-S-S-2-S | Stainless Steel | Stainless Steel | 3/4" NPT | SPDT |
| V6EPS-S-S-3-S | Stainless Steel | Stainless Steel | 1" NPT | SPDT |
| V6EPS-S-S-4-S | Stainless Steel | Stainless Steel | 1-1/4" NPT | SPDT |
| V6EPS-S-S-5-S | Stainless Steel | Stainless Steel | 1-1/2" NPT | SPDT |
| V6EPS-S-S-6-S | Stainless Steel | Stainless Steel | 2" NPT | SPDT |
| V6EPS-S-S-6-0 | Stainless Steel | Stainless Steel | No Tee | SPDT |
| V6EPS-S-S-LF | Stainless Steel | Stainless Steel | 1/2" NPT | SPDT |
Stainless Steel Construction — DPDT Switch
| Model | Upper/Lower Body | Tee | Size | Switch |
|---|---|---|---|---|
| V6EPS-S-D-1-S | Stainless Steel | Stainless Steel | 1/2" NPT | DPDT |
| V6EPS-S-D-2-S | Stainless Steel | Stainless Steel | 3/4" NPT | DPDT |
| V6EPS-S-D-3-S | Stainless Steel | Stainless Steel | 1" NPT | DPDT |
| V6EPS-S-D-4-S | Stainless Steel | Stainless Steel | 1-1/4" NPT | DPDT |
| V6EPS-S-D-5-S | Stainless Steel | Stainless Steel | 1-1/2" NPT | DPDT |
| V6EPS-S-D-6-S | Stainless Steel | Stainless Steel | 2" NPT | DPDT |
| V6EPS-S-D-6-0 | Stainless Steel | Stainless Steel | No Tee | DPDT |
| V6EPS-S-D-LF | Stainless Steel | Stainless Steel | 1/2" NPT | DPDT |