Miniature Solenoid Operated Valves

Precision, versatility and reliability for compact applications

The miniature solenoid valves from Humphrey Products give engineers maximum control over air and gas flows in a compact and energy-efficient design. These valves are ideal for applications that require low leakage, low pressure (vacuum to 8,6 bar / 125 psi) and the highest reliability.

Fields of application:

• Testing & analytical: leak-tight control for gas and leak detection systems

• Medical & life science: quiet, reliable operation at low pressure

• Transportation: resistant to low temperatures and vibration

• Engineered solutions: custom solutions with low energy consumption and high chemical resistance

A10 Series Ultra-Compact Pilot Valve

The Humphrey A10 is a miniature 3/2-weg pilot valve with direct solenoid operation. Perfect for instrumentation and test equipment where every millimetre counts.

Technical data:

Type: 2- or 3-weg, normally closed

Working pressure: 0–7 bar (0–100 psig)

Media: air or inert gas

Flow (Cv): 0.01

Power: 1.0 W

Voltage: 12 VDC or 24 VDC

Response time: 10 ms (on/off)

Temperature range: −10 °C to +50 °C

Material: PBT valve body, HNBR seals, stainless steel

Service life: up to 50 million switching cycles

Mounting: subbase, manual non-locking override

Advantages:
✓ Very low energy consumption
✓ Compact (10 mm wide)
✓ Low leakage and high reliability
✓ CE, RoHS and REACH compliant

A15 Series: high-flow miniature valve

The Humphrey A15 combines compact dimensions with a larger flow, ideal for systems that need more air volume. Available as a normally closed (NC) or normally open (NO) version.

Technical data:

Type: 2- or 3-weg, NC or NO

Working pressure: 0–7 bar (0–100 psig)

Media: air or inert gas

Flow (Cv): 0.05

Power: 2.5 W

Voltage: 12 VDC or 24 VDC

Response time: 15 ms (on/off)

Temperature range: −10 °C to +50 °C

Material: PPS valve body, FKM seals, stainless steel

Service life: up to 50 million switching cycles

Options: Mini-DIN or cable entry with LED indicator

Advantages:
✓ Compact yet powerful
✓ Maintenance-free (no lubrication needed)
✓ Low leak rate and fast response
✓ Suitable for modular mounting

Mini-Mizer Series: compact performance for demanding systems

Mini-Mizer valves are developed for OEMs that demand precision, low leakage and versatile configuration options.
This series offers 2- and 3-weg configurations with extremely low internal leakage and low energy consumption, and is applicable in analytical, medical and test instruments.

Technical data:

Type: 2- or 3-weg, NC or NO

Working pressure: 0–7 bar (0–100 psig)

Media: air or inert gas

Flow (Cv): 0.01

Leak: 4 cc/min at 7 bar

Power: 0.5 watt

Voltage: 12 VDC or 24 VDC

Response time: energised = 5ms, de-energised 10ms

Temperature range: −17°C to +65 °C (-40 °C as special)

Advantages:
✓ Low power consumption

✓ Very compact dimensions & light construction

✓ Low leakage & high reliability standard

✓ Versatile media and pressure/vacuum compatibility

✓ Quiet operation

HK5 Series: diaphragm-poppet instrumentation valve

The Humphrey HK5 is a high-grade miniature 2- and 3-weg solenoid valve with a unique diaphragm-poppet design. This construction prevents metal-to-metal contact, minimises wear and guarantees extremely low leakage (< 2 cc/min at 7 bar). The various standard manifolds, subbases and accessories give you the freedom to build complete setups yourself. This makes it easy for you as an engineer to design, test and build.

Technical specifications:

Type: direct-acting, single solenoid, spring return

Function: 2- or 3-weg, NC or NO, diverter or selector

Media: compressed air, vacuum, inert gas (HK5) or liquids (HKL5)

Pressure range: vacuum to 7 bar (100 psi)

Flow (Cv): 0.05 (85 SLPM @ 100 psi), low power 0.035 (42 SLPM @60 psi)

Power: 0.9 W (low power) or 1.7 W (standard)

Response time: 10 ms on / 4 ms off

Temperature range: 0 °C – 100 °C (depending on seal type)

Leak rate: 2 cc/min @100 psi

Seals: NBR, HNBR, EPDM or FKM

Mounting: subbase or manifold, 10-32 UNF ports

Service life: millions of cycles

Key advantages:
✓ Ultra-low leakage and high flow capacity
✓ Compact (12 mm wide) and lightweight (35 g)
✓ Suitable for air, gas and liquids
✓ Excellent chemical resistance
✓ Fast switching time and quiet operation

Typical applications:

• Leak test systems and gas analysers

• Medical instrumentation (oxygen or liquid control)

• Precision pneumatic systems

• OEM-toepassingen waar lage lekkage cruciaal is

For more information or free CAD drawings, see the Humphrey Products website: https://www.humphrey-products.com/products/miniature-2-way-3-way-solenoid-operated

Would you like to receive a free sample for testing? Then contact us via the contact form.