Noshok 45-660-30/30-psi-SL Bottom Conn, 4.5 Process Gauge, Silicone Filled 1/4 NPT
List Price $427.52 Original price was: $427.52.$220.00Current price is: $220.00.
1 in stock (can be backordered)
1/4 NPT Bottom Conn, 4.5 Process Gauge, Silicone Filled

Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
Process Gauge, 4.5″ Brass Internals, 30/30 psi, 1/4 NPT Male Bottom Conn, Silicone Filled
| SERIES | SPECIFICATIONS | |
| Pressure ranges | 600/700 Series (all) | Vacuum and compound ranges through 0 psi to 15,000 psi |
| 700 Series (low pressure) | Vacuum inH2O to 10 psi | |
| Accuracy | 600/700 Series (all) | ±0.5% full scale |
| 700 Series (low pressure) | ±1.6% full scale | |
| Temperature ranges* | 45-640 | Media -4 °F to 150 °F (-20 °C to 65 °C) Ambient -40 °F to 150 °F (-40 °C to 65 °C) |
| 45-740 | Media -40 °F to 212 °F (-40 °C to 100 °C) 500 °F (260 °C) Maximum for short term/intermittent Ambient -40 °F to 150 °F (-40 °C to 65 °C) |
|
| 45-740 (low pressure) | Media -4 °F to 212 °F (-20 °C to 100 °C) Ambient -4 °F to 140 °F (-20 °C to 60 °C) |
|
| 45-660 | Media -4 °F to 150 °F (-20 °C to 65 °C) Glycerin fill -40 °F to 150 °F (-40 °C to 65 °C) Special fill Ambient -4 °F to 150 °F (-20 °C to 65 °C) Glycerin fill -40 °F to 150 °F (-40 °C to 65 °C) Special fill |
|
| 45-760 | Media -4 °F to 212 °F (-20 °C to 100 °C) Glycerin fill -40 °F to 212 °F (-40 °C to 100 °C) Special fill 250 °F (130 °C) Maximum for short term/intermittent Ambient -4 °F to 150 °F (-20 °C to 65 °C) Glycerin fill -40 °F to 150 °F (-40 °C to 65 °C) Special fill |
|
| Case | 600/700 Series (all) | Turret style black Polypropylene case Solid front, safety case with blow-out back |
| 700 Series (low pressure) | Turret style black PBT safety case Solid front with blow-out back |
|
| Bayonet ring | 600/700 Series (all) | Threaded black PBT |
| Lens | 600/700 Series (all) | Acrylic |
| Measuring element | 45-640, 45-660 (≤ 600 psi) | Copper alloy C-Type Bourdon tube |
| 45-740, 45-760 (≤ 600 psi) | 316 Stainless Steel C-Type Bourdon tube | |
| 45-740 (low pressure) | 316 Stainless Steel diaphragm capsule | |
| 600/700 Series (all) (>600 psi) | 316 Stainless Steel coiled safety Bourdon tube | |
| Connection | 45-640, 45-660 | 1/4″ NPT, brass |
| 45-740, 45-760 | 1/4″ NPT or 1/2″ NPT, 316 Stainless Steel | |
| Movement | 45-640, 45-660 | Brass and nickel-silver with highly polished bearing surfaces. An internal zero stop is standard. |
| 45-740, 45-760 | Stainless Steel with highly polished bearing surfaces. An internal zero stop is standard. | |
| Pointer | 600/700 Series (all) | Balanced micro-adjustable aluminum, black finish |
| Dial | 600/700 Series (all) | Aluminum, white background with black scale. UV resistant. |
| Fill liquid** | 45-660, 45-760 | 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.
** See gauge fill options.
Description
1/4 NPT Bottom Conn, 4.5 Process Gauge, Silicone Filled

Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
Process Gauge, 4.5″ Brass Internals, 30/30 psi, 1/4 NPT Male Bottom Conn, Silicone Filled
| SERIES | SPECIFICATIONS | |
| Pressure ranges | 600/700 Series (all) | Vacuum and compound ranges through 0 psi to 15,000 psi |
| 700 Series (low pressure) | Vacuum inH2O to 10 psi | |
| Accuracy | 600/700 Series (all) | ±0.5% full scale |
| 700 Series (low pressure) | ±1.6% full scale | |
| Temperature ranges* | 45-640 | Media -4 °F to 150 °F (-20 °C to 65 °C) Ambient -40 °F to 150 °F (-40 °C to 65 °C) |
| 45-740 | Media -40 °F to 212 °F (-40 °C to 100 °C) 500 °F (260 °C) Maximum for short term/intermittent Ambient -40 °F to 150 °F (-40 °C to 65 °C) |
|
| 45-740 (low pressure) | Media -4 °F to 212 °F (-20 °C to 100 °C) Ambient -4 °F to 140 °F (-20 °C to 60 °C) |
|
| 45-660 | Media -4 °F to 150 °F (-20 °C to 65 °C) Glycerin fill -40 °F to 150 °F (-40 °C to 65 °C) Special fill Ambient -4 °F to 150 °F (-20 °C to 65 °C) Glycerin fill -40 °F to 150 °F (-40 °C to 65 °C) Special fill |
|
| 45-760 | Media -4 °F to 212 °F (-20 °C to 100 °C) Glycerin fill -40 °F to 212 °F (-40 °C to 100 °C) Special fill 250 °F (130 °C) Maximum for short term/intermittent Ambient -4 °F to 150 °F (-20 °C to 65 °C) Glycerin fill -40 °F to 150 °F (-40 °C to 65 °C) Special fill |
|
| Case | 600/700 Series (all) | Turret style black Polypropylene case Solid front, safety case with blow-out back |
| 700 Series (low pressure) | Turret style black PBT safety case Solid front with blow-out back |
|
| Bayonet ring | 600/700 Series (all) | Threaded black PBT |
| Lens | 600/700 Series (all) | Acrylic |
| Measuring element | 45-640, 45-660 (≤ 600 psi) | Copper alloy C-Type Bourdon tube |
| 45-740, 45-760 (≤ 600 psi) | 316 Stainless Steel C-Type Bourdon tube | |
| 45-740 (low pressure) | 316 Stainless Steel diaphragm capsule | |
| 600/700 Series (all) (>600 psi) | 316 Stainless Steel coiled safety Bourdon tube | |
| Connection | 45-640, 45-660 | 1/4″ NPT, brass |
| 45-740, 45-760 | 1/4″ NPT or 1/2″ NPT, 316 Stainless Steel | |
| Movement | 45-640, 45-660 | Brass and nickel-silver with highly polished bearing surfaces. An internal zero stop is standard. |
| 45-740, 45-760 | Stainless Steel with highly polished bearing surfaces. An internal zero stop is standard. | |
| Pointer | 600/700 Series (all) | Balanced micro-adjustable aluminum, black finish |
| Dial | 600/700 Series (all) | Aluminum, white background with black scale. UV resistant. |
| Fill liquid** | 45-660, 45-760 | 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.
** See gauge fill options.


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