The Yamato 212570 is a set of five straight dry flask caps with glass joints for the DC401 freeze dryer. The sealing caps that close dry flasks for freeze-drying, storage, and transfer under vacuum. It is the matched glassware cap for flask-mounted lyophilization.
| SKU | 212570 |
| Type | Dry flask cap with glass joint, straight (glassware accessory) |
| Pack | 5 pcs/set |
| For use with | Yamato DC401 dry flasks (120 mL / 250 mL) |
| Companion parts | 212571 (45° bent cap, 5 pcs); 212820 (120 mL flask); 212821 (250 mL flask) |
| Parent system | DC401 benchtop freeze dryer; −45 °C trap; 4 L trap |
| Voltage | N/A (glassware) |
In flask-mounted freeze-drying, the dry flask cap seals a sample flask so it can be evacuated on the manifold and then closed under vacuum for storage or transfer without reintroducing moisture, protecting the lyophilized product. The straight glass-joint version (212570) is the standard orientation; a 45° bent version (212571) suits manifold geometries where an angled port is easier to reach. A 5-pack matches a set of dry flasks so a whole cycle can be capped at once.
These are the manufacturer's matched caps for the DC401 dry flasks, so the ground-glass joints hold vacuum reliably.
What is the Yamato 212570? A set of five straight dry flask caps (with glass joints) for the DC401 freeze dryer's dry flasks.
Straight or bent? This is the straight version; the 45° bent cap is 212571.
What flasks does it fit? The DC401 dry flasks, 120 mL (212820) and 250 mL (212821).
Confirm at quote: dry-flask sizes in use and straight vs 45° bent caps for your manifold.
Warranty: Per Yamato standard capital-equipment terms. Confirm coverage at quote.
Add the 212570 to a quote alongside your DC401 dry flasks.
DC401 freeze-dryer glassware:
- 212570 (this product): dry flask cap, straight, 5 pcs
- 212571, dry flask cap, 45° bent, 5 pcs
- 212820 / 212821, 120 mL / 250 mL dry flasks
Match caps to your flask sizes and manifold orientation.
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