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Safety Relief Valves
We need an excerpt
We have Kunkle Safety Relief Valves to meet all your OEM boiler needs.
Parts list
- 6021DCT011/2 X 3/4 inch
- 6021DDT013/4 X 3/4 inch
- 6021EDT013/4 X 1 inch
- 6021EET011 X 1 inch
- 6021FET011 X 1-1/4 inch
- 6021FFT011-1/4"X 1-1/4 inch
- 6021GFT011-1/4 X 1-1/2 inch
- 6021GGT011-1/2 X 1-1/2 inch
- 6021HGT011-1/2 X 2 inch
- 6021HHT012 X 2 inch
- 6021JHT012 X 2-1/2 inch
- 6021JJT012-1/2 X 2-1/2 inch
- 6010DCM011/2 X 3/4 inch
- 6010DDM013/4 X 3/4 inch
- 6010EDM013/4"X 1 inch
- 6010EEM011 X 1 inch
- 6010FEM011 X 1-1/4 inch
- 6010FFM011-1/4 X 1-1/4 inch
- 6010GFM011-1/4 X 1-1/2 inch
- 6010GGM011-1/2 X 1-1/2 inch
- 6010HGM011-1/2 X 2 inch
- 6010HHM012 X 2 inch
- 6010JHM012 X 2-1/2 inch
- 6010JJM012-1/2 X 2-1/2 inch
- 930-H2 X 2 inch
- 930-J2-1/2 X 2-1/2 inch
- 930-K3 X 3 inch
- 537-D3/4 X 1 inch
- 537-E1 x 1-1/4 inch
- 537-G1-1/2 x 2 inch
- 537-H2 X 2-1/2 inch
In-stock items. Order by 2:00 PM EST for Same-Day Shipping.
Need Help Identifying the Right Tile?
Mismatched refractory dimensions can disrupt burner air profiles and create dangerous external hot spots. Our team can review your equipment prints and cross-reference dimensions to ensure a precise fit.

Frequently Asked Questions About Liner Tiles
How often should boiler liner tiles be inspected and replaced?
Liner tiles should be visually inspected during every seasonal maintenance turnaround or scheduled fireside cleanout. Look for structural warning signs like deep cracks, excessive chipping (spalling), or sections that have begun to bow or loosen from the wall. Worn, thin, or broken tiles should be replaced immediately with high-durability replacement boiler refractory tiles to prevent localized overheating and structural breakdown of the outer boiler shell.
Can custom liner tile shapes be manufactured for legacy boiler models?
Yes. Halmar specializes as a domestic niche manufacturing partner for specialized and custom-engineered refractory configurations. If you run a legacy or non-standard industrial heating system that is not featured in our primary casting logs, you can send a physical sample or technical blueprint of your existing tile directly to our Louisville, Kentucky facility. Our team will precision-cast an exact, high-durability replacement tailored directly to your system’s layout.
Why choose Halmar aftermarket liner tiles over factory OEM alternatives?
Sourcing original factory parts frequently subjects facility managers to extended distributor backorders and high markup premiums. Halmar manages the entire high-temperature casting and curing process inside our own organized warehouse, keeping thousands of boiler refractory tiles directly on our shelves. This allows us to offer superior material density, precise dimensional fits, and responsive same-day shipping on all in-stock maintenance components.
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