INOXPA Diaphragm Valve NDL

he NDL (Non Dead Leg T Valve) diaphragm valves, manually or pneumatically operated, are specially designed for use on aseptic processes in the pharmaceutical industry.

The valves are widely used at points of use in the loops of purified water (PW) or water for injections (WFI).

Design & Features

• Comparing with a traditional diaphragm valve, the dead leg of an NDL valve is reduced to a minimum due to the design of the valve, and the pharmaceutical normatives like ASME BPE prioritise this condition.
• Broad flexible range based upon a modular design concept with key components being common with other valves.
• Autoclavable stainless steel bonnets and handles.
• Handle with stroke limiter.
• Hygienic design of the handles.
• The valve body is machined out of a stainless steel block.
• Completely drainable design.
• Traceability of components.

Materials

• Parts in contact with the product: Stainless steel AISI 316L
• Other stainless steel parts: Stainless steel AISI 304
• Plastic parts: PP + 30 GF
• Diaphragm: EPDM.

Option

• Diaphragm: FPM, VMQ (according to FDA 177.2600 and USP Class VI) and PTFE / EPDM separate (according to FDA 177.2600).
• Manual or pneumatic actuation.
• Handle: stainless steel or plastic.
• Bonnet: stainless steel or plastic.
• Normally open (NO) double-acting pneumatic actuator.
• Pneumatic actuator with stroke limiter.
• Pneumatic actuator with external switch.
• Control box with switches and solenoid valves.
• Valve with controller and positioner.
• Tank bottom valve.
• Various types of connections.
• Materials and roughness certificates.