Profile: Bellofram Instruments (India) Pvt. Ltd. is an instrumentation manufacturer. Our products include air regulators, relays, servo pressure controllers, cylinders, accessories, filters, regulators and lubricators. Our type 20 air relay is a compact, two-stage, pilot operated 1:1 relay, with positive and negative bias adjustment capability. It accepts a signal pressure, and combined with the bias adjustment, maintains a resulting output pressure. These relays provide extra fast blowdown for rapid release of output pressure. The extra relief feature makes this relay suitable for cylinder return stroke actuation, air hoists, and similar applications requiring fast exhaust. The compact type 3110 (one-loop), and 3120 (two-loop) circuit-card pressure regulators are perfect for size-conscious OEMs, without sacrificing any of the high-end performance normally associated with full-size I/Ps. Diaphragm air cylinders are actuators made from elastomers, engineered metals and fabrics. They require no lubrication, are virtually frictionless, and economical. They can be used to provide lifting, clamping, pushing, coining, turning, and other linear force or actuation motions in many applications. Air cylinders are available in eight sizes. Each size is available in both a spring-return and a double-acting variety, with one or two stroke variations (Series E or F). Sizes 4 and 6 have impact-extruded aluminum shells. Larger sizes have steel shells. Rods are ground, polished and hard-chrome plated steel. Bearings are sintered bronze, and molybdenum disulphite impregnated. Other components are high strength materials with suitable corrosion resistant treatment.