CLIPPARD R311 industrial grade pneumatic components – wide temperature operation, durable design, easy to cope with harsh environments!

Description

The Clippard R311 is a precision miniature solenoid valve engineered for reliable pneumatic control in compact automation systems. As part of Clippard’s renowned R-Series, this direct-acting valve delivers exceptional performance in medical, laboratory, and industrial applications where space and energy efficiency are critical. The R311 features a brass body with Buna-N seals supporting operating pressures from 0–100 PSI and flow rates up to 0.55 Cv. Its low-power coil (1.1W at 12 VDC) enables cooler operation and extended service life, while the Class F insulation rating ensures stability in continuous duty cycles. With 1/8″ NPT ports and a compact 0.5″ x 1.1″ footprint, the Clippard R311 provides versatile 2-way (normally closed/normally open) fluid control for air, vacuum, and inert gases. The valve’s epoxy-encapsulated coil resists moisture and chemical exposure, making it ideal for analytical instruments, respiratory devices, and packaging machinery requiring millions of maintenance-free cycles.

CLIPPARD R311

Technical Specifications

Main Features and Advantages

Space-Optimized Design: At just 0.5 cubic inches, the R311 fits in tightly confined spaces where conventional valves cannot operate. Its symmetrical porting enables flexible manifold mounting configurations.

Energy Efficiency: Patented coil technology reduces heat generation by 40% compared to industry standards, enabling continuous operation without derating. Low holding power (0.8W after actuation) minimizes energy costs.

Reliable Sealing Technology: Precision-machined poppet with elastomer seal ensures zero leakage (<1×10⁻⁷ sccs He). Optional Viton™ seals extend chemical resistance to fuels and solvents.

Broad Application Versatility: Operates effectively from vacuum to 100 PSI with minimal pressure drop. Special variants support oxygen service (ASTM G93) and high-cycle applications (>10 million operations).

Application Field

The Clippard R311 excels in precision gas control scenarios:

Medical Devices: Oxygen flow control in ventilators and anesthesia machines

Laboratory Automation: Solvent vapor management in GC/MS systems

Semiconductor Manufacturing: Purge gas control for wafer handling robots

Packaging Machinery: Timed air bursts for product ejection/counting

Analytical Instruments: Carrier gas switching in chromatographs

Fuel Cell Systems: Hydrogen flow regulation in test stations

In mobile applications, its vibration resistance (up to 20g) maintains seal integrity in portable diagnostic equipment and aerospace test rigs.

CLIPPARD R311

Related Products

R321: 3-way version for double-acting cylinder control

EV-3: Electronic proportional valve for flow modulation

MINI-MATIC® Manifolds: Modular bases for multi-valve integration

SDR-331: Solid-state relay driver for R311 coils

FCD-1PA: Filter-regulator for air prep systems

20-00: Push-to-connect fittings for tubing interfaces

R111: Lower flow variant (Cv 0.03)

VH Series: High-flow valve alternative

Installation and Maintenance

Pre-installation preparation: Verify fluid compatibility with seal materials. Deburr all pipe threads before connection. Orient valve vertically with coil upward to prevent debris accumulation. Use thread sealant only on male ports (avoiding first two threads).

Maintenance recommendations: Install 40-μm upstream filtration. Perform quarterly leak checks using soap solution. Replace seals every 5 million cycles or if actuation time increases >15%. Never exceed maximum pressure/temperature ratings.