INOXPA INDIA PVT.LTD.

Pune - 411023,

Maharashtra, India

The 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).

Discontinued

Request information

NDL Diaphragm Valve

Operating principle

The diaphragm provides the body seal as well as the seat seal. There are no paths to the outside environment and, as such, the valve is suitable for aseptic processes. When the valve is being closed, a pressure pad which supports the diaphragm moves towards the sealing face on the body. As the pressure plate moves, the diaphragm flexes and is forced down onto the seat area in the centre of the body, thus, closing off the flow path through the body.
The valve can be actuated either manually or pneumatically and controlled by control units and solenoid valves.
A standard diaphragm valve is used to shut the flow of a line, an NDL type valve shuts only one outlet of the main line.

Design and 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 (1.4404)
Other stainless steel parts Stainless steel AISI 304 (1.4301)
Plastic parts PP + 30 GF
Diaphragm EPDM (according to FDA 177.2600 and USP Class VI)

Surface finish:
Internal Ra ≤ 0,5 μm
External Bright polish

Options

Diaphragm: FPM, VMQ (according to FDA 177.2600 and USP class VI) and PTFE / EPDM separate (according to FDA 177.2600).
Stainless steel bonnet with plastic or stainless steel handle.
Pneumatic actuator with stroke limiter.
Pneumatic actuator with external switch.
Control box with switches and solenoid valves.
Materials and roughness certificates.

Documents

Operating principle

The diaphragm provides the body seal as well as the seat seal. There are no paths to the outside environment and, as such, the valve is suitable for aseptic processes. When the valve is being closed, a pressure pad which supports the diaphragm moves towards the sealing face on the body. As the pressure plate moves, the diaphragm flexes and is forced down onto the seat area in the centre of the body, thus, closing off the flow path through the body.
The valve can be actuated either manually or pneumatically and controlled by control units and solenoid valves.
A standard diaphragm valve is used to shut the flow of a line, an NDL type valve shuts only one outlet of the main line.

Materials and Options

Parts in contact with the product Stainless steel AISI 316L (1.4404)
Other stainless steel parts Stainless steel AISI 304 (1.4301)
Plastic parts PP + 30 GF
Diaphragm EPDM (according to FDA 177.2600 and USP Class VI)

Surface finish:
Internal Ra ≤ 0,5 μm
External Bright polish

Diaphragm: FPM, VMQ (according to FDA 177.2600 and USP class VI) and PTFE / EPDM separate (according to FDA 177.2600).
Stainless steel bonnet with plastic or stainless steel handle.
Pneumatic actuator with stroke limiter.
Pneumatic actuator with external switch.
Control box with switches and solenoid valves.
Materials and roughness certificates.

Document № FTphNDL.3_ES
Title Válvula de Diafragma NDL
File type .pdf
Summary Las válvulas de diafragma NDL (Non Dead Leg T Valve) de accionamiento manual o neumático, están especialmente diseñadas para usos en procesos asépticos en la industria farmacéutica.
    Download
  • E-mail
Document № FTphNDL.3_EN
Title Diaphragm Valve NDL
File type .pdf
Summary The NDL (Non Dead Leg T Valve) diaphragm valves, manually or pneumatically operated, are specially designed for use on aseptic processes in the pharmaceutical industry.
    Download
  • E-mail
Document № FTphNDL.3_IT
Title Valvola a Membrana NDL
File type .pdf
Summary Le valvole a membrana NDL (Non Dead Leg T Valve) ad azionamento manuale o pneumatico, sono specialmente progettate per usi nei processi asettici nell’industria farmaceutica.
    Download
  • E-mail
Document № FTphNDL.3_DE
Title Membranventil NDL
File type .pdf
Summary Die Membranventile NDL (Non Dead Leg T Valve), manuell oder pneumatisch betätigt, sind speziell für den Einsatz in aseptischen Prozessen in der Pharmaindustrie konzipiert
    Download
  • E-mail
Document № FTphNDL.3_RU
Title Мембранный Клапан NDL
File type .pdf
Summary Мембранные клапаны NDL (Non Dead Leg T Valve), с ручным или пневматическим приводом, были специально спроектированы для асептических процессов фармацевтической промышленности.
    Download
  • E-mail
Document № 10.300.30.02ES
Title INSTRUCCIONES DE INSTALACIÓN, SERVICIO Y MANTENIMIENTO VEEVALV ’09
File type .pdf
    Download
  • E-mail
Document № 10.300.30.02EN
Title INSTALLATION, SERVICE AND MAINTENANCE INSTRUCTIONS VEEVALV ‘09
File type .pdf
    Download
  • E-mail
Document № 10.300.30.02FR
Title INSTRUCTIONS D’INSTALLATION, DE SERVICE ET D’ENTRETIEN VEEVALV ’09
File type .pdf
    Download
  • E-mail
Document № 10.300.30.02RU
Title ИНСТРУКЦИИ ПО УСТАНОВКЕ, ЭКСПЛУАТАЦИИ И ОБСЛУЖИВАНИЮ VEEVALV ’09
File type .pdf
    Download
  • E-mail

Cookies Policy

This website uses cookies. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services. However, blocking some types of cookies may affect your experience on the site and the services we can offer. Cookies policy page

Reject Accept all cookies
Allow selection
Necessary (2)
Preferences (0)
Statistics (7)
Marketing (11)
About cookies

Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.

Preference cookies enable a website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in.

Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously

Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.

Name Provider Purpose Expiry Type
cc_cookie_accept www.inoxpa.in Stores the user's cookie consent state for the current domain 1 year HTTP
PHPSESSID www.inoxpa.in Preserves user session state across page requests. Session HTTP
collect Google Used to send data to Google Analytics about the visitor's device and behavior. Tracks the visitor across devices and marketing channels. Session Pixel
_ga Google Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 2 years HTTP
_ga_# www.inoxpa.in Used by Google Analytics to collect data on the number of times a user has visited the website as well as dates for the first and most recent visit. 2 years HTTP
_gat_ Google Used by Google Analytics to throttle request rate 1 day HTTP
_gid Google Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 1 day HTTP
fr Facebook Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 3 months HTTP
_fbp Facebook Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 3 months HTTP
IDE Google Used by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user. 1 year HTTP
ads/ga-audiences Google Used by Google AdWords to re-engage visitors that are likely to convert to customers based on the visitor's online behaviour across websites. Session Pixel
VISITOR_INFO1_LIVE YouTube Tries to estimate the users' bandwidth on pages with integrated YouTube videos. 179 days HTTP
YSC YouTube Registers a unique ID to keep statistics of what videos from YouTube the user has seen. Session HTTP
yt-remote-cast-installed YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-connected-devices YouTube Stores the user's video player preferences using embedded YouTube video. Persistent HTML
yt-remote-device-id YouTube Stores the user's video player preferences using embedded YouTube video. Persistent HTML
yt-remote-fast-check-period YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-session-app YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-session-app YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-session-name YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
Cookies are small text files that can be used by websites to make a user's experience more efficient. The law states that we can store cookies on your device if they are strictly necessary for the operation of this site. For all other types of cookies we need your permission. This site uses different types of cookies. Some cookies are placed by third party services that appear on our pages. You can at any time change or withdraw your consent from the Cookie Declaration on our website. Learn more about who we are, how you can contact us and how we process personal data in our Privacy Policy. Please state your consent ID and date when you contact us regarding your consent.