The Schrader scroll valve regulates the pressure in any gas circuit through a bellow. This is a completely mechanical regulation system with no electronics. The scroll is mounted in applications such as air conditioning compressors. It’s a clever design based on a simple mechanical concept, and is consequently also a robust design. The pressure is regulated by the special bellow. The Schrader scroll valve is manufactured on a fully automated assembly machine with multiple poke-yokes. Each valve is calibrated to the customer’s specific set-point requirement, 100% tested for pressure, and 100% leak tested. The scroll valve is easily adjustable for new pressures.