Electronic Vis-U-Tec

The Electronic Vis-U-Tec senses pressure differentials as low as 10 psig (0.69 barg) downstream from the Rupture Disk (Bursting Disc). Vis-U-Tec's piston fully extends, breaking the sensor's conductive circuit. Used with the Burst Disk Monitor, Vis-U-Tec's electrical warning triggers an audible or visual alarm.

Benefits

• Instantly Warns of a Ruptured Disk
• Reduces Plant Down-Time
• Reduces Product Loss
• Minimizes Environmental Pollution
• Re-useable - Reset the Piston Position

Applications

• Relief Valve Isolation
• For Double Disk Assemblies, Mid-Flange Installation Between Disks
• For Disks Free-Venting to Atmosphere or Down-Stream Piping
• Storage and Process Vessel Pressure Detection

Features

• After replacing the ruptured disk, reset the Vis-U-Tec by pushing the piston fully back into the unit.
• 12 inch (30cm) two-conductor cable
• 316 SS construction for all wetted parts contacting process fluids
• Viton O-ring seals the piston.
• Operating temperatures range from - 40 °F (- 40 °C) to 400 °F (204 °C).
• Maximum current: 250 mA
• Maximum voltage: 24 Vdc
• Suitable for intrinsically safe applications when used with certified apparatus (i.e. Zener Barrier)
• Available with Aluminum Piston option that provides visual warning only.

Installation

The Vis-U-Tec sensor fits into the Safety Head or piping outlet using a _ inch NPT screw connection.

Availability

Use the Vis-U-Tec sensor in applications that vent into enclosed volumes or for free-venting applications.

Consult the following table for minimum burst pressures.

APPLICATIONS VENTING INTO ENCLOSED VOLUMES
Activation Pressure		10 psig (0.69 barg)
Minimum Disk Burst Pressure		40 psig (2.76 barg)

  

FREE VENTING DISK APPLICATIONS
Disk Size		Minimum Burst Pressure*
Inches	mm	psig	barg
1	25	100	6.89
1.5	40	100	6.89
2	50	100	6.89
3	80	200	13.79
4	100	200	13.79
6	150	350	24.13

Ordering Information

For all your rupture disk (bursting disc) needs, rely on BS&B. Contact the representative in your area or contact BS&B Safety Systems today.