Airtac NTS series: valve-position limit-switch assembly - NTS-D-21

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Description

Specifications: NTS-D-21 — valve-position limit-switch assembly with abs housing and switch option 21.

Product Catalog

Download Airtac Product Catalog (PDF)

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

This Ordering Code

Code Meaning
NTS Quarter-turn valve limit-switch assembly
D ABS housing; IP67 as cataloged
21 P+F NJ2-V3-N, 2-wire inductive proximity switch, normally open, EExiaIICT6

Technical Specifications

Parameter Details
Position indication 0–90°, dome indicator
Housing material ABS
Catalog protection / explosion marking IP67
Finish Polyester powder coating on applicable metal housing
Ambient temperature −20 to +80°C; silicone-rubber seal option is mentioned for low-temperature service
Cable entries Two 3/4 in NPT for E series; two 1/2 in NPT for other series in the specification table. The E/ES drawing labels PF3/4 and H labels PF3/4, so match the delivered entry marking before selecting a gland.
Terminal arrangement 8 terminals for standard 2-pole SPDT; 12 terminals for 4-pole SPDT arrangement
Mounting bracket Stainless-steel NAMUR standard bracket; D housing uses an integrated plastic bracket
Selected switching arrangement P+F NJ2-V3-N, 2-wire inductive proximity switch, normally open, EExiaIICT6

Features and Application

  • Visual indication and electrical position feedback for quarter-turn valves such as ball, butterfly and plug valves.
  • Mounts to NAMUR actuators meeting the stated VDI/VDE 3845 interface, subject to the selected shaft/bracket dimensions.
  • Choose the mechanical or proximity switch to suit the electrical circuit and required protection.

Dimensions and Installation

Parameter Details
Bracket length 130 mm
NAMUR mounting pitch 80 mm
Bracket height options shown 30 / 40 / 50 mm
Housing height 57 mm
Internal height shown 47 mm
Transverse pitch 30 mm
Drive engagement 20 mm

Dimensions are in millimetres unless a different unit is shown. Lettered dimensions refer to the matching drawing in the catalog; check that drawing before machining or installing the product.

NAMUR describes the actuator interface, not a guarantee for every actuator. Check the mounting pitch, shaft engagement, enclosure clearance and switch signal against the mating actuator. Mechanical switches are intended for ordinary service; any intrinsically safe proximity-switch application requires the correct complete circuit and marked device rating.

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Estimated Weight

93 g. This is a calculated reference estimate for this product, not a manufacturer-published or measured product weight. Packaging is excluded. Assumed 130 × 60 × 57 mm enclosure reference envelope × material density 1.05 g/cm³ × 20% equivalent solid fill. The fill factor is an estimation assumption; actual switch and mounting hardware weights vary.

Product form

Specifications: NTS-D-21 — valve-position limit-switch assembly with abs housing and switch option 21. Product Catalog Download Airtac Product Catalog (PDF)... Read more

SKU: NTS-D-21

$102.75 Incl. VAT

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    Description

    Specifications: NTS-D-21 — valve-position limit-switch assembly with abs housing and switch option 21.

    Product Catalog

    Download Airtac Product Catalog (PDF)

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    This Ordering Code

    Code Meaning
    NTS Quarter-turn valve limit-switch assembly
    D ABS housing; IP67 as cataloged
    21 P+F NJ2-V3-N, 2-wire inductive proximity switch, normally open, EExiaIICT6

    Technical Specifications

    Parameter Details
    Position indication 0–90°, dome indicator
    Housing material ABS
    Catalog protection / explosion marking IP67
    Finish Polyester powder coating on applicable metal housing
    Ambient temperature −20 to +80°C; silicone-rubber seal option is mentioned for low-temperature service
    Cable entries Two 3/4 in NPT for E series; two 1/2 in NPT for other series in the specification table. The E/ES drawing labels PF3/4 and H labels PF3/4, so match the delivered entry marking before selecting a gland.
    Terminal arrangement 8 terminals for standard 2-pole SPDT; 12 terminals for 4-pole SPDT arrangement
    Mounting bracket Stainless-steel NAMUR standard bracket; D housing uses an integrated plastic bracket
    Selected switching arrangement P+F NJ2-V3-N, 2-wire inductive proximity switch, normally open, EExiaIICT6

    Features and Application

    • Visual indication and electrical position feedback for quarter-turn valves such as ball, butterfly and plug valves.
    • Mounts to NAMUR actuators meeting the stated VDI/VDE 3845 interface, subject to the selected shaft/bracket dimensions.
    • Choose the mechanical or proximity switch to suit the electrical circuit and required protection.

    Dimensions and Installation

    Parameter Details
    Bracket length 130 mm
    NAMUR mounting pitch 80 mm
    Bracket height options shown 30 / 40 / 50 mm
    Housing height 57 mm
    Internal height shown 47 mm
    Transverse pitch 30 mm
    Drive engagement 20 mm

    Dimensions are in millimetres unless a different unit is shown. Lettered dimensions refer to the matching drawing in the catalog; check that drawing before machining or installing the product.

    NAMUR describes the actuator interface, not a guarantee for every actuator. Check the mounting pitch, shaft engagement, enclosure clearance and switch signal against the mating actuator. Mechanical switches are intended for ordinary service; any intrinsically safe proximity-switch application requires the correct complete circuit and marked device rating.

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Estimated Weight

    93 g. This is a calculated reference estimate for this product, not a manufacturer-published or measured product weight. Packaging is excluded. Assumed 130 × 60 × 57 mm enclosure reference envelope × material density 1.05 g/cm³ × 20% equivalent solid fill. The fill factor is an estimation assumption; actual switch and mounting hardware weights vary.

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