Forney Press-Aire Meter, Unit Alone, No Case or Accessories

Forney Press-Aire Meter (Type B)

The Forney Press-Aire Meter is renowned as the industry's top choice for testing entrained air in fresh concrete. Whether you're testing directly from a ready-mix truck or as concrete comes down the chute, this meter provides fast, accurate, and reliable results. While this model is for the unit alone (without a case or accessories), it contains everything necessary to perform the test and maintain the unit's calibration.

This meter operates based on Boyle's Law and conforms to ASTM C231, Meter Type B standards. It precisely measures the air content in freshly compacted concrete, a critical factor for ensuring the durability of concrete, especially in freeze-thaw environments.

Key Features and Design:

• Robust Construction: The meter consists of two primary parts: a durable cast aluminum base (measuring chamber) and a comprehensive cover assembly. The 1/4 cubic foot capacity base features machine-flanged rims and smooth interior surfaces, designed for easy and frequent cleaning. Its construction is engineered for simple disassembly in the field, allowing for quick replacement of worn or damaged parts.
• Secure Sealing: Four rugged, quick-action stainless-steel clamps ensure a tight seal between the cover and the base. These clamps are corrosion-resistant, easy to operate, and more cost-effective to replace than older clamp designs.
• Advanced Cover Assembly: The cover assembly is the control center of the unit. It includes:
  • High-Volume Super Pump: This efficient pump requires fewer strokes to reach the required test pressure, and its integrated check valve eliminates the O-ring seal problems common in older models.
  • Precision Gauge: A large, 4-inch diameter, sealed gauge with a stainless-steel case is both durable and easy to read. The adjustable pointer simplifies calibration.
  • Durable Valves: High-quality brass petcocks with ball valves provide long-lasting, trouble-free operation.
• Pressure-Resistant: The design is unaffected by changes in atmospheric or barometric pressure, ensuring consistent accuracy across different job sites and weather conditions.
• Multi-Functional Use: Beyond air content testing, the 1/4 cubic foot base can also be used for unit weight, volume, and bulk density determinations (ASTM C138), making it a versatile tool for field quality control. The base capacity exceeds the minimum ASTM C231 requirement of 0.20 ft³.

The Forney Press-Aire Meter is the go-to instrument for concrete technicians, engineers, and quality control professionals who demand accuracy and durability. Its field-friendly design and reliable performance ensure that your concrete meets the necessary specifications every time.