25-310-30-vac-BFF Back Conn, 2.5 Brass Vacuum Gauge 1/4 NPT , Glycerin Filled, Brass Front Flange
List Price Original price was: $189.25.$113.25Current price is: $113.25.
14 in stock
Noshok 25-310-30-vac-BFF 1/4 NPT Back Conn, 2.5 Brass Case Gauge, Glycerin Filled, Brass Front Flange
NOSHOK offers a wide variety of standard & elevated pressure, and reduced pressure replaceable and non-replaceable diaphragm seals, designed to isolate and/or protect the pressure measuring instrument from corrosive, viscous, contaminated or very high temperature process media.
View NOSHOK’s Diaphragm Seal offering
NOSHOK’s Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
Vacuum Gauge, 2.5″ Brass Case, Copper Alloy Internals, 30 vac, 1/4 NPT Male Back Conn, Glycerin Filled, Brass Front Flange
| SERIES | SPECIFICATIONS | |
| Pressure ranges | 300 Series (all) | Vacuum and compound ranges through 0 psi to 15,000 psi |
| Accuracy | 25-300, 25-310 | ±1.6% full scale |
| 40-300, 40-310 | ±1% full scale | |
| Temperature ranges* | 300 Series (all) | Media -4 °F to 140 °F (-20 °C to 60 °C) Ambient 0 °F to 160 °F (-18 °C to 71 °C) Optional temperature ratings available from -40 °F to 212 °F (-40 °C to 100 °C) |
| Measuring element | 25-300, 25-310 (≤ 600 psi) |
Copper alloy “C” tube |
| 25-300, 25-310 (800 psi to 6,000 psi) |
Copper alloy coiled safety tube | |
| 25-300, 25-310 (7,500 psi to 15,000 psi) |
316 stainless steel coiled safety tube | |
| 40-300, 40-310 (≤ 1,000 psi) |
Copper alloy “C” tube | |
| 40-300, 40-310 (15,000 psi) |
316 stainless steel coiled safety tube | |
| Connection | 25-300, 25-310 | 1/4″ NPT die-cast brass with the case. 7/16″ – 20 SAE adjustable type straight thread with FKM O-ring is also available as a stock option on many ranges (-4 SAE). |
| 40-300, 40-310 | 1/4″ NPT die-cast brass with the case. 1/2″ NPT is available on certain 40-300 ranges as a stock option, and on all other 40-300 and 40-310’s as a non-stock option. | |
| Case | 300 Series (all) | Die cast brass (natural brass finish) with safety relief plug |
| Cover ring | 300 Series (all) | Polished brass |
| Lens | 300 Series (all) | Acrylic with o-ring seal |
| Pointer | 300 Series (all) | Balanced aluminum, black finish |
| Dial | 300 Series (all) | Aluminum, white background with black scale. UV resistant. |
| Movement | 300 Series (all) | Brass and nickel-silver with highly polished bearing surfaces |
| Fill liquid | 300 Series (all) | Glycerin |
* For every 18 °F (10 °C) shift in temperature from which the gauge is calibrated, the user can experience up to ±0.4% additional error.
Description
Noshok 25-310-30-vac-BFF 1/4 NPT Back Conn, 2.5 Brass Case Gauge, Glycerin Filled, Brass Front Flange
NOSHOK offers a wide variety of standard & elevated pressure, and reduced pressure replaceable and non-replaceable diaphragm seals, designed to isolate and/or protect the pressure measuring instrument from corrosive, viscous, contaminated or very high temperature process media.
View NOSHOK’s Diaphragm Seal offering
NOSHOK’s Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
Vacuum Gauge, 2.5″ Brass Case, Copper Alloy Internals, 30 vac, 1/4 NPT Male Back Conn, Glycerin Filled, Brass Front Flange
| SERIES | SPECIFICATIONS | |
| Pressure ranges | 300 Series (all) | Vacuum and compound ranges through 0 psi to 15,000 psi |
| Accuracy | 25-300, 25-310 | ±1.6% full scale |
| 40-300, 40-310 | ±1% full scale | |
| Temperature ranges* | 300 Series (all) | Media -4 °F to 140 °F (-20 °C to 60 °C) Ambient 0 °F to 160 °F (-18 °C to 71 °C) Optional temperature ratings available from -40 °F to 212 °F (-40 °C to 100 °C) |
| Measuring element | 25-300, 25-310 (≤ 600 psi) |
Copper alloy “C” tube |
| 25-300, 25-310 (800 psi to 6,000 psi) |
Copper alloy coiled safety tube | |
| 25-300, 25-310 (7,500 psi to 15,000 psi) |
316 stainless steel coiled safety tube | |
| 40-300, 40-310 (≤ 1,000 psi) |
Copper alloy “C” tube | |
| 40-300, 40-310 (15,000 psi) |
316 stainless steel coiled safety tube | |
| Connection | 25-300, 25-310 | 1/4″ NPT die-cast brass with the case. 7/16″ – 20 SAE adjustable type straight thread with FKM O-ring is also available as a stock option on many ranges (-4 SAE). |
| 40-300, 40-310 | 1/4″ NPT die-cast brass with the case. 1/2″ NPT is available on certain 40-300 ranges as a stock option, and on all other 40-300 and 40-310’s as a non-stock option. | |
| Case | 300 Series (all) | Die cast brass (natural brass finish) with safety relief plug |
| Cover ring | 300 Series (all) | Polished brass |
| Lens | 300 Series (all) | Acrylic with o-ring seal |
| Pointer | 300 Series (all) | Balanced aluminum, black finish |
| Dial | 300 Series (all) | Aluminum, white background with black scale. UV resistant. |
| Movement | 300 Series (all) | Brass and nickel-silver with highly polished bearing surfaces |
| Fill liquid | 300 Series (all) | Glycerin |
* For every 18 °F (10 °C) shift in temperature from which the gauge is calibrated, the user can experience up to ±0.4% additional error.
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