Panam Engineers Pvt. Ltd. Manufactures Flange to Flange Mounting 2 Valve Manifolds, H type. Panam Engineers Pvt. Ltd. Is an ISO 9001:2000 certified company. The Flange to Flange Mounting 2 Valve Manifolds are useful for separate mounting. Its connecting system has transmitters and impulse lines. It also features simple two valve configuration ensuring easy bleed, block and calibration of a static pressure transmitter or gauge.