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DIN 11851 Blank Caps

Deutsches Institut fur Normung (DIN) Fittings

Blank Caps

DIN Blank Caps

DIN blank caps function just like Tri Clamp End Caps, but for the DIN standard. They fit into the welding male with a gasket, and have the same bevel as welding liner but are solid. Unlike the welding male or liner, blank caps are not welded and thus do not need an imperial inch-based size. They simply fit into their respective (25mm, 40mm, etc...) metric counterpart. The round nut then presses the blank cap and welding male together compressing the gasket and forming a tight seal.


Incorrect sizing is common with DIN 11851 fittings. Please review our DIN 11851 Guide for assistance in sizing your DIN 11851 fitting.

7 Items

Set Descending Direction
per page
SKU Item Price
DIN-16-G400-DN100 DIN Blank Cap | 100mm (4 in.)
DIN-16-G100-DN25 DIN Blank Cap | 25mm (1 in.)  - Eta: < 09/13/2023
DIN-16-G150-DN40 DIN Blank Cap | 40mm (1.5 in.)
DIN-16-G200-DN50 DIN Blank Cap | 50mm (2 in.)
DIN-16-G250-DN65-150-CUTOUT DIN Blank Cap | 65mm (2.5 in) x 1.5 in. Weld Cutout
DIN-16-G250-DN65 DIN Blank Cap | 65mm (2.5 in.)
DIN-16-G300-DN80 DIN Blank Cap | 80mm (3 in.)

7 Items

Set Descending Direction
per page
DIN 11851 Blank Cap
Tube OD DIN Size A B C D
1" 25 0.51 1.73 0.39 1.38
1 1/2 " 40 0.51 2.20 0.39 1.89
2" 50 0.55 2.68 0.43 2.40
2 1/2 " 65 0.63 3.39 0.47 3.11
3" 80 0.63 3.94 0.47 3.66
4" 100 0.79 4.76 0.59 4.49

Return Policy

Glacier Tanks will accept returns of website standard stocking items, but only if:

  1. The item is new, unused, and in resalable condition;
  2. You notify Glacier Tanks and request a return authorization within 30 days of your receipt of the item;
  3. You return the item to Glacier Tanks, postage/shipping prepaid within 5 days of Glacier Tanks' return authorization (RMA);

Once your items have been received by Glacier Tanks and verified to be unused, we will refund your purchase price, less shipping costs. Returns will incur a 15% restocking fee. Return shipping costs are your responsibility and shall not be paid by Glacier Tanks.

The following items are non-returnable:

  • Special or Discounted items - labeled by button color:
    • Discontinued
    • Damaged
    • Non-conforming
    • Refurbished
    • Special Order
    • Drop Ship
    • Build-to-Order
  • Custom order
  • All Gaskets & Seals

Please be sure you understand and agree to any drawings supplied to you prior to purchase of custom or special order items. Payment of deposits for custom or special order items indicates your approval and acceptance of such custom or special order items.

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