- RANE have full range of best quality of rubber diaphragm for various Industries & various applications. The diaphragms rubbers we manufacture are available in various sizes ranging from 5 mm to 1000 mm. Our range of diaphragms is manufactured using PTFE / ELASTOMERIC materials that have the capacity to withstand harsh weather conditions. We make use of almost all types of material that comprises of Nitrile, EPDM, Neoprene, Fluorosilicone, Silicone, SBR, Fluoroelastomers Viton.,PTFE