Description
Pressure relief check valve NS 29/32 with stopcock, 3 mm bore and spring-loaded ball ground joint closure is a laboratory valve for managing overpressure while blocking reverse flow in glass apparatus. The NS 29/32 joint size enables direct connection to matching ground-joint systems common in organic and analytical laboratories. A 3 mm bore combined with the spring-loaded ball closure provides controlled passage and automatic sealing under reverse pressure. Supplied as one piece with a net weight of 0,226 kg, the unit remains practical for bench-scale installations. From manufacturer Witeg, this pressure-relief check valve supports safe operation of reaction, distillation or vacuum lines. Its gross weight of 0,226 kg reflects a robust yet manageable construction. Originating from Germany in the Baden-Württemberg region, the valve integrates the stopcock for additional manual control. Researchers employ it to protect sensitive apparatus from pressure excursions and backflow during everyday laboratory procedures.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Joint size: NS 29/32
- Bore diameter: 3 mm
- Design: With stopcock and spring-loaded ball ground joint closure
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Pressure relief valves ST 29/32
What is this article?
Pressure relief valves ST 29/32 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Stopcocks & valves. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, Silicone tubing and Tubing accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.