Anand airline accessories has manufactured roller operated valve can be operated mechanically either by rotary cams or sliding cams for the supply of pilot air. This valve are available with sturdy construction and made-in arrangement for exact sealing and exhaust bleed hole to letout return air. Specifications: inlet and outlet connections of 1/8" and 1/4" bsp; two ,mounting holes of 5 mm dia; and pressure range up to 10 kg/cm9.