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Our non-return valves protect tubing and vacuum systems from backflow when pressure falls in the system. Sealing system eliminates backflow, helping to prevent upstream contamination or damage. These valves are compatible with a wide range of systems, all with different specific levels when dealing with the three main pressure values: cracking pressure, maximum pressure, and back pressure created. Durable steel or plastics are used in all designs, with spring loaded, creating a quality product that will remain independent for years with no need for replacement.

Our non-return valves protect tubing and vacuum systems from backflow when pressure falls in the system. Sealing system eliminates backflow, helping to prevent upstream contamination or damage. These valves are compatible with a wide range of systems, all with different specific levels when dealing with the three main pressure values: cracking pressure, maximum pressure, and back pressure created. Durable steel or plastics are used in all designs, with spring loaded, creating a quality product that will remain independent for years with no need for replacement.


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Product Image-554-3195

Upchurch Scientific®, P-783 shut-off valve, blue ETFE, for 1/8" OD tubing, 1,0 mm thru-hole, 10,0 µl internal volume

Omschrijving: Upchurch Scientific®, P-783 shut-off valve, blue ETFE, for 1/8" OD tubing, 1,0 mm thru-hole, 10,0 µl internal volume
Catalogus nummer: 554-3195
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-554-3196

Upchurch Scientific®, P-783-01 shut-off valve without fittings, blue ETFE, for 1/8" OD tubing, 1,0 mm thru-hole, 10,0 µl internal volume

Omschrijving: Upchurch Scientific®, P-783-01 shut-off valve without fittings, blue ETFE, for 1/8" OD tubing, 1,0 mm thru-hole, 10,0 µl internal volume
Catalogus nummer: 554-3196
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-554-3194

Upchurch Scientific®, P-782NF shut-off valve without fittings, blue ETFE, for 1/16" OD tubing, 0,5 mm thru-hole, 2,5 µl internal volume

Omschrijving: Upchurch Scientific®, P-782NF shut-off valve without fittings, blue ETFE, for 1/16" OD tubing, 0,5 mm thru-hole, 2,5 µl internal volume
Catalogus nummer: 554-3194
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-UPCHU-456

Upchurch Scientific®, U-456 pressure relief valve assembly, 100 psi (7 bar), 139 µl swept volume, for 1/16" OD tubing, PEEK

Omschrijving: Upchurch Scientific®, U-456 pressure relief valve assembly, 100 psi (7 bar), 139 µl swept volume, for 1/16" OD tubing, PEEK
Catalogus nummer: UPCHU-456
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-UPCHU-455

Upchurch Scientific®, U-455 pressure relief valve assembly, 5 psi (0,3 bar), 148 µl swept volume, for 1/16" OD tubing, PEEK

Omschrijving: Upchurch Scientific®, U-455 pressure relief valve assembly, 5 psi (0,3 bar), 148 µl swept volume, for 1/16" OD tubing, PEEK
Catalogus nummer: UPCHU-455
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-271-5143

Air valve anti-return, cone size 29/32 NS, with sidearm, Borosilicaatglas 3.3

Omschrijving: Air valve anti-return, cone size 29/32 NS, with sidearm, Borosilicaatglas 3.3
Catalogus nummer: 271-5143
UOM: 1 * 1 ST
Leverancier: QVF LABORTECHNIK
Product Image-271-5142

Air valve anti-return, cone size 29/32 NS, without sidearm, Borosilicaatglas 3.3

Omschrijving: Air valve anti-return, cone size 29/32 NS, without sidearm, Borosilicaatglas 3.3
Catalogus nummer: 271-5142
UOM: 1 * 1 ST
Leverancier: QVF LABORTECHNIK
Product Image-554-3193

Upchurch Scientific®, P-782 shut-off valve, blue ETFE, for 1/16" OD tubing, 0,5 mm thru-hole, 2,5 µl internal volume

Omschrijving: Upchurch Scientific®, P-782 shut-off valve, blue ETFE, for 1/16" OD tubing, 0,5 mm thru-hole, 2,5 µl internal volume
Catalogus nummer: 554-3193
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-271-5145

Air valve anti-return, cone size 19/26 NS, with sidearm, Borosilicaatglas 3.3

Omschrijving: Air valve anti-return, cone size 19/26 NS, with sidearm, Borosilicaatglas 3.3
Catalogus nummer: 271-5145
UOM: 1 * 1 ST
Leverancier: QVF LABORTECHNIK
Product Image-UPCHCV-3301

Upchurch Scientific®, CV-3301 inlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 20 µl swept volume

Omschrijving: Upchurch Scientific®, CV-3301 inlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 20 µl swept volume
Catalogus nummer: UPCHCV-3301
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-554-3060

Upchurch Scientific®, CV-3315 inlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 16 µl swept volume

Omschrijving: Upchurch Scientific®, CV-3315 inlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 16 µl swept volume
Catalogus nummer: 554-3060
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-UPCHCV-3316

Upchurch Scientific®, CV-3316 outlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 16 µl swept volume

Omschrijving: Upchurch Scientific®, CV-3316 outlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 16 µl swept volume
Catalogus nummer: UPCHCV-3316
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-229-7482

Check valve with tapered ends, two-piece, PP, Slangafmeting: 7 - 9 mm ID

Omschrijving: Check valve with tapered ends, two-piece, PP, Slangafmeting: 7 - 9 mm ID
Catalogus nummer: 229-7482
UOM: 1 * 1 ST
Leverancier: SEMADENI
Product Image-UPCHCV-3302

Upchurch Scientific®, CV-3302 outlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 20 µl swept volume

Omschrijving: Upchurch Scientific®, CV-3302 outlet check valve, 1/4-28 flat-bottom, male to 1/4-28 flat-bottom, female, 0,50 mm thru-hole, 20 µl swept volume
Catalogus nummer: UPCHCV-3302
UOM: 1 * 1 ST
Leverancier: UPCHURCH SCIENTIFIC
Product Image-REST25163

Outlet cartridges, ceramic ball and seat

Omschrijving: Outlet cartridges, ceramic ball and seat
Catalogus nummer: REST25163
UOM: 1 * 1 ST
Leverancier: Restek
Product Image-REST25161

Outlet cartridges, sapphire and ruby ball and seat

Omschrijving: Outlet cartridges, sapphire and ruby ball and seat
Catalogus nummer: REST25161
UOM: 1 * 1 ST
Leverancier: Restek
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