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Ashcroft
Ashcroft B-Series Pressure Switch
Quote on request
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B-Series: vacuum to 3000 psi; ±1% span; mechanical contacts. RFQ range.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Pressure vacuum to 3000 psi; differential 0–600 psid; hydraulic 1000–7500 psi
Accuracy
Setpoint repeatability ±1% of full range (additional ±1%/50 °F shift from 70 °F set typical)
Output
SPDT or DPDT switch elements; wide element selection
Process connection
¼ NPT female standard; ½ NPT female or ¼ F × ½ M combo optional
Electrical connection
¾ NPT female standard; ½ NPT or M20×1.5 optional
Wetted parts
Diaphragm Buna-N, Viton, Teflon, 316 SS, or Monel
Fits general industrial pressure switching where you need an Ashcroft B-Series switch—vacuum to about 3,000 psi with mechanical contacts and ±1% of span setpoint repeatability.
Key advantages
- Ranges — Vacuum to ~3,000 psi
- Repeatability — ±1% of span
- Output — Mechanical switch contacts
- Use — Industrial alarm / control
- Platform — Ashcroft B-Series family
Typical applications
- Plant utility pressure trips.
- Compressor control.
- General OEM switching.
Selection guide
- Range
- Contact rating
- Process connection
Common mistakes
- Confusing with XP F-Series enclosure needs.
- Wrong media compatibility.
- Setpoint outside range.
When to RFQ / what to tell us
- Range, connection.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 37159 |
| Brand | Ashcroft |
| Model | B Series Pressure Switch |
| Product type | Pressure Switch |
| Type | Industrial pressure switch (Ashcroft B-Series) |
| Range | Vacuum to about 3,000 psi |
| Output | Mechanical switch contacts |
| Repeatability | ±1% of span |
Documents
FAQ
Q: Repeatability? A: ±1% of span.
Q: Max pressure class? A: About 3,000 psi.
Q: What should I send for a quote? A: Range/connection, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Pressure vacuum to 3000 psi; differential 0–600 psid; hydraulic 1000–7500 psi |
| Accuracy | Setpoint repeatability ±1% of full range (additional ±1%/50 °F shift from 70 °F set typical) |
| Output | SPDT or DPDT switch elements; wide element selection |
| Process connection | ¼ NPT female standard; ½ NPT female or ¼ F × ½ M combo optional |
| Electrical connection | ¾ NPT female standard; ½ NPT or M20×1.5 optional |
| Wetted parts | Diaphragm Buna-N, Viton, Teflon, 316 SS, or Monel |
| Protection | B4/H4 NEMA 4X IP66; B7 NEMA 7/9 IP66 |
| Ambient temperature | −20 to 150 °F (−28 to 65 °C); calibrated at 70 °F |
| Approvals | UL; CSA; FM; ATEX; IECEx; CE; UKCA; CRN; SIL 3 Capable; NSF-61; RoHS |
| Setpoint | Single setpoint factory-set or field adjustable 15–100% of range |
| Enclosure Material | Epoxy-coated aluminum standard; optional 316 SS (NEMA 7/9) |
| Process Temperature | 0–150 °F Buna/Teflon; 20–300 °F Viton; 0–300 °F SS/Monel |
| Deadband | Fixed or limited adjustable per switch element |
| Special Features | NACE and fire-safe designs; SIL 3 capable B/D series; hermetically sealed element options |