Valbia Pneumatic, Electric, Multi-Turn Actuators & Automated Valve Packages

Italian-manufactured Valbia (Valpres S.r.l. / Bonomi Group) Series 82–84 rack-and-pinion pneumatic actuators, Series 85–86 electric actuators (15–350 Nm), Series 87 MT multi-turn drives, and 8E/8P automated valve assemblies.

Pneumatic Actuators Series 82 (DA / SR)

Rack-and-pinion actuators in hard-anodized extruded aluminum UNI 6060 (45–50 µm) across 15 sizes (32–330). Output reaches 7358 Nm at 8 bar with 0°–90° (±5°) rotation. Serviceable NBR, Viton, and Silicone O-rings plus POM piston guides support maintenance.

15 models 32–330 in double acting DA and spring return SR
Max air pressure 8 bar, torque 3.5 to 7358 Nm
Seals: NBR (-20 to +85°C), Viton (+150°C), Silicone (-40°C)
ISO 5211-DIN 3337 mounting and NAMUR solenoid interface

Pneumatic Actuators Series 83 (0°–180°)

Double-acting extruded aluminum rack-and-pinion actuators in 9 sizes (52–160) for multi-port valves. Stroke 0°–180° adjusts via stainless cam and end-cap stop bolts. Wear parts include PTFE/Minlon antifriction rings, POM thrust blocks, and O-rings.

9 sizes 52–160 in double acting (DA) execution only
0°–180° rotation via cam and end-cap adjustment screws
Patented non-pressurized cam chamber cuts leak paths
Nickel-plated anti-blowout pinion, ISO 5211 and NAMUR

Stainless Steel Pneumatic Actuators Series 84

Compact 0°–90° actuators with stainless steel body, end caps, and anti-blowout pinion in 5 sizes (52–100, DA and SR). Built for corrosive chemical, food, and marine service. Maintenance kits cover NBR/FKM/Silicone O-rings, POM/Stanyl guides, and springs.

5 sizes 52–100 (DA & SR) in stainless steel housing
0°–90° turn, max 8 bar, ISO 5211 F03–F10 valve bases
Hard-anodized aluminum pistons with PTFE/Stanyl rings
Stainless steel fasteners and powder-coated spring sets

Electric Actuators Series 85 (Technopolymer)

Quarter-turn actuators in self-extinguishing technopolymer enclosures (VB015–VB350, 15–350 Nm) for ball and butterfly valves. Support 12/24V AC/DC and 100–240V AC with IP65/IP67 protection. Spare modules include control/power boards, DC motor, heater, and cams.

7 models VB015–VB350 delivering 15 to 350 Nm torque
Supply 100–240V AC, 24V AC/DC, 12V AC/DC; IP65/IP67
Options: 4–20 mA / 0–10V positioner, battery backup, 5kΩ
Electronic torque limiter, heater, 2 SPDT limit switches

Electric Actuators Series 86 (Aluminum)

Heavy-duty aluminum electric actuators with polyester powder coating (VB015M–VB350M, 15–350 Nm) rated IP68 / Type 4X. Models VB110M–VB350M feature a manual handwheel and auto-man selector. Replaceable control/power boards, gear train, M20x1.5 glands, and seals.

7 models VB015M–VB350M (15–350 Nm), IP68 / Type 4X rated
Manual override: 10 mm key or handwheel with snap switch
ISO 5211 F03–F10 dual drilling, two M20x1.5 cable entries
12/24V AC/DC and 100–240V AC supply, 50%–75% duty rating

Variable Speed Multi-Turn Actuators (Series 87 / MT)

Intelligent VB-0030MT to VB-0500MT actuators (13–500 Nm) using an inverter-driven AC-Brushless motor (12–120 rpm). Independent soft start and stop protect pipelines from water hammer. Serviceable parts include backlit LCD, NBR seals, INOX+PA66 keypad, and data logger PCB.

5 models VB-0030MT to VB-0500MT, 13–500 Nm torque range
Variable speed 12–120 rpm (106 rpm max on VB-0500MT), 0.9–4.2 kW
Max thrust 40–100 kN, ISO F10/F14 base, rising stem up to 58 mm
Ambient -20°C to +70°C, optional ATEX and IECEx enclosure

Automated Electric Valve Packages

Factory-assembled packages pairing Series 85 and 86 electric actuators with 2-way, 3-way, and butterfly valves from Valpres (e.g., 8E000 AISI 316-CF8M ball valves up to PN 140). Service covers valve seat seals, stem coupling wear, and actuator end-position calibration.

2-way, 3-way ball valve and butterfly valve packages
8E000 series: AISI 316-CF8M stainless steel, 1/4"–2", up to PN 140
Driven by VB015–VB350 actuators (12/24V AC/DC, 100–240V AC)
Direct ISO 5211 coupling with Valpres industrial valves

Automated Pneumatic Valve Packages

Automated 2-way, 3-way, high-pressure, and butterfly packages driven by Series 82 and 84 DA/SR actuators. For example, 8P007100 combines a 3-way flanged AISI 316 ball valve (up to PN 40) with DA 52–DA 100 actuators. Maintenance covers valve seals, actuator O-rings, and NAMUR pilots.

2-way, 3-way (T/L port), high-pressure, and butterfly valves
8P007100: flanged AISI 316 ball valve up to PN 40, DA 52–100
Double acting (DA) and fail-safe spring return (SR) builds
Supports NAMUR solenoids, limit switch boxes, and positioners

Sizing Valbia Pneumatic and Electric Actuators for Valve Automation

Valbia Series 82, 83, and 84 rack-and-pinion pneumatic actuators operate up to 8 bar across 0°-90° and 0°-180° turns, while Series 85 and 86 electric actuators deliver 15 to 350 Nm with ISO 5211 direct mounting.

For pneumatic sizing, manufacturers apply a 25%–50% safety factor above the maximum breakaway torque of the ball or butterfly valve.

Double-acting (DA) models maintain constant torque across the full stroke and are selected against the lowest available air supply pressure (2.5–8 bar).

Spring-return (SR) models must be sized using the lower torque value between compressed-air end stroke (MAC) and spring-return end stroke (MMD) across spring sets 01 to 08.

Series 82–84 Pneumatic, Series 85–86 Electric, and MT Multi-Turn Ranges

Hard-anodized extruded aluminum Series 82 (sizes 32–330) spans 3.5 to 7358 Nm at 8 bar, Series 83 (sizes 52–160) provides 0°–180° rotation in DA execution, and stainless steel Series 84 (sizes 52–100) withstands corrosive chemical, food, and offshore duty.

Patented isolation of the cam and stop-bolt chamber prevents pressure leaks around stroke limit screws.

Series 85 (self-extinguishing technopolymer, IP65/IP67) and Series 86 (molded aluminum with polyester powder coat, IP68/Type 4X) run on 12/24V AC/DC or 100–240V AC with optional 4–20 mA / 0–10V positioners, 5 kOhm potentiometers, and 24V DC battery fail-safe.

Series 87 MT multi-turn actuators (VB-0030MT to VB-0500MT, 13–500 Nm, 40–100 kN thrust) use an inverter-controlled AC-Brushless motor (12–120 rpm) with soft start/stop to prevent water hammer.

ISO 5211 / NAMUR Interfaces, Seals, and Automated Valve Packages

Dual-drilled ISO 5211 / DIN 3337 flanges (F03 to F25) and NAMUR / VDI-VDE 3845 interfaces allow direct coupling to industrial valves, solenoid valves, and switch boxes.

Pneumatic units support standard NBR (-20°C to +85°C), high-temperature Viton/FKM (up to +150°C), and low-temperature Silicone (-40°C to +85°C) seal kits.

Pre-assembled 8E electric packages and 8P pneumatic packages integrate Valbia actuators with Valpres and Bonomi Group 2-way, 3-way, high-pressure, and butterfly valves (such as 8E000 AISI 316-CF8M up to PN 140 and 8P007100 flanged 3-way up to PN 40), supported by ATEX, IECEx, UL, CSA, DNV, and RINA compliance.

Valbia and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Valbia and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.