Delta Controls Ltd. Pressure Switch S21

Description
Technical Data Ranges available up to 700 bar (10,000 psi) Maximum working pressure up to 1000 bar (15,000 psi) Epoxy coated die cast zinc / aluminium and stainless steel Weatherproof enclosures NEMA 4, 4X, IP66 Explosionproof enclosures NEMA 4, 4X, 7, 9 Flameproof Eex d IIC - ATEX Safety vented design as standard Field set point adjustment against a reference scale SPDT or DPDT switching and optional gold alloy contacts Terminal block for easy field wiring Hermetically sealed microswitch options 316 stainless steel wetted parts NACE MR-01-75 compatibility PED 97/23/EC CAT IV option Performance characteristics Enclosure IP66 Protection Wetted parts options 316 Stainless Steel (welded and with Viton / Nitrile O rings) Nickel Alloy (Monel) Standard Electrical ratings – Refer to Table 6 5 Amps – general purpose, environmentally sealed, hermetically sealed 1 Amp with gold contacts. Process connection Rc ¼ (BSP), ¼ NPT Internal, ½ NPT Internal & ½ NPT External Unit weight Between 2.7kg – 6.6kg (5.9lb – 14.5lb) Accuracy Set point repeatability ± 1% of span at 20 °C / 68 °F ambient
Description
Technical Data Ranges available up to 700 bar (10,000 psi) Maximum working pressure up to 1000 bar (15,000 psi) Epoxy coated die cast zinc / aluminium and stainless steel Weatherproof enclosures NEMA 4, 4X, IP66 Explosionproof enclosures NEMA 4, 4X, 7, 9 Flameproof Eex d IIC - ATEX Safety vented design as standard Field set point adjustment against a reference scale SPDT or DPDT switching and optional gold alloy contacts Terminal block for easy field wiring Hermetically sealed microswitch options 316 stainless steel wetted parts NACE MR-01-75 compatibility PED 97/23/EC CAT IV option Performance characteristics Enclosure IP66 Protection Wetted parts options 316 Stainless Steel (welded and with Viton / Nitrile O rings) Nickel Alloy (Monel) Standard Electrical ratings – Refer to Table 6 5 Amps – general purpose, environmentally sealed, hermetically sealed 1 Amp with gold contacts. Process connection Rc ¼ (BSP), ¼ NPT Internal, ½ NPT Internal & ½ NPT External Unit weight Between 2.7kg – 6.6kg (5.9lb – 14.5lb) Accuracy Set point repeatability ± 1% of span at 20 °C / 68 °F ambient

Suppliers

Company
Product
Description
Supplier Links
Pressure Switch - S21 - Delta Controls Ltd.
Houston, TX, USA
Pressure Switch
S21
Pressure Switch S21
Technical Data Ranges available up to 700 bar (10,000 psi) Maximum working pressure up to 1000 bar (15,000 psi) Epoxy coated die cast zinc / aluminium and stainless steel Weatherproof enclosures NEMA 4, 4X, IP66 Explosionproof enclosures NEMA 4, 4X, 7, 9 Flameproof Eex d IIC - ATEX Safety vented design as standard Field set point adjustment against a reference scale SPDT or DPDT switching and optional gold alloy contacts Terminal block for easy field wiring Hermetically sealed microswitch options 316 stainless steel wetted parts NACE MR-01-75 compatibility PED 97/23/EC CAT IV option Performance characteristics Enclosure IP66 Protection Wetted parts options 316 Stainless Steel (welded and with Viton / Nitrile O rings) Nickel Alloy (Monel) Standard Electrical ratings – Refer to Table 6 5 Amps – general purpose, environmentally sealed, hermetically sealed 1 Amp with gold contacts. Process connection Rc ¼ (BSP), ¼ NPT Internal, ½ NPT Internal & ½ NPT External Unit weight Between 2.7kg – 6.6kg (5.9lb – 14.5lb) Accuracy Set point repeatability ± 1% of span at 20 °C / 68 °F ambient

Technical Data

  • Ranges available up to 700 bar (10,000 psi)
  • Maximum working pressure up to 1000 bar (15,000 psi)
  • Epoxy coated die cast zinc / aluminium and stainless steel
  • Weatherproof enclosures NEMA 4, 4X, IP66
  • Explosionproof enclosures NEMA 4, 4X, 7, 9
  • Flameproof Eex d IIC - ATEX
  • Safety vented design as standard
  • Field set point adjustment against a reference scale
  • SPDT or DPDT switching and optional gold alloy contacts
  • Terminal block for easy field wiring
  • Hermetically sealed microswitch options
  • 316 stainless steel wetted parts
  • NACE MR-01-75 compatibility
  • PED 97/23/EC CAT IV option

Performance characteristics
Enclosure

  • IP66 Protection

Wetted parts options

  • 316 Stainless Steel (welded and with Viton / Nitrile O rings)
  • Nickel Alloy (Monel)

Standard Electrical ratings – Refer to Table 6

  • 5 Amps – general purpose, environmentally sealed, hermetically sealed
  • 1 Amp with gold contacts.

Process connection

  • Rc ¼ (BSP), ¼ NPT Internal, ½ NPT Internal & ½ NPT External

Unit weight

  • Between 2.7kg – 6.6kg (5.9lb – 14.5lb)

Accuracy

  • Set point repeatability ± 1% of span at 20 °C / 68 °F ambient
Supplier's Site

Technical Specifications

  Delta Controls Ltd.
Product Category Pressure Switches
Product Number S21
Product Name Pressure Switch
Pressure Measurement Absolute (optional feature); Vacuum
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