Acid Resistant Diaphragm Seals
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Corrosion Resistant Diaphragm Seals for Hot Acids

Corrosion Resistant Diaphragm Seals for Hot Acids

Available on any OEM design, threaded or flanged, Tantaline treated diaphragm seals offer higher corrosion resistance than Hastelloy, titanium, zirconium and tantalum metal diaphragm seals.
Tantaline diaphragm seals have the performance of tantalum, a cost competitive to C276 and the lead-time of stainless steel.

Connection Type Manufacture
> Threaded
> Flanged
> Trerice
> Wika
> Aschroft

Tantaline treated diaphragm seals (typically the lower housing), supplied by high quality manufacturers like Trerice, Zavoda, Emerson, Badotherm, Wika, Ashcroft etc., become the most corrosion and acid resistant diaphragm seal assemblies commercially available for use in hot acids like hydrochloric acid (HCl), sulfuric acid (H2SO4), acetic acid, sour gas (H2S) and nitric acid. 

Tantaline achieves this by growing a tantalum surface alloy into the stainless steel diaphragm seal lower housing. The result is the Tantaline treated diaphragm seal housing have unmatched corrosion and acid resistance at costs less than other specialty corrosion resistant metals and polymers.




Trerice

Trerice Diaphragm Seals Threaded
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection 1/4" - 1" NPT
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Trerice Brochure


Trerice Diaphragm Seals Flanged 
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection  1/2" - 3" ANSI 150
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Trerice Brochure



Wika
Wika Diaphragm Seals Threaded
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection 1/4" - 1" NPT
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Wika Brochure


Wika Diaphragm Seals Flanged 
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection  1/2" - 3" ANSI 150
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Wika Brochure



Ashcroft
Ashcroft Diaphragm Seals Threaded
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection 1/4" - 1" NPT
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Ashcroft Brochure



Ashcroft Diaphragm Seals Flanged 
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection  1/2" - 3" ANSI 150
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Ashcroft Brochure
 




Threaded Acid Resistant Diaphragm Seals

Trerice Diaphragm Seals Threaded
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection 1/4" - 1" NPT
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Trerice Brochure


Wika Diaphragm Seals Threaded
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection 1/4" - 1" NPT
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Wika Brochure


Ashcroft Diaphragm Seals Threaded
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection 1/4" - 1" NPT
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Ashcroft Brochure


Flanged Acid Resistant Diaphragm Seals

Trerice Diaphragm Seals Flanged 
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection  1/2" - 3" ANSI 150
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Trerice Brochure


Wika Diaphragm Seals Flanged 
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection  1/2" - 3" ANSI 150
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Wika Brochure


Ashcroft Diaphragm Seals Flanged 
 
Acid Resistant Diaphragm Seal Assmeblies
 
Upper Housing Ni Plated Carbon Steel / 316 SS
Lower Housing Tantaline treated 316 SS
Instrument Connection 1/4", 1/2" NPT
Process Connection  1/2" - 3" ANSI 150
Diaphragm Options Tantalum, Hastelloy, PTFE
Option Flushing Port
Brochure Download Ashcroft Brochure
 
Customer Testimonial - Performance (2:24)
Click to view General Atomics experience with Tantaline
 
Who is using Tantaline solutions?

One of largest instrumentation manufactures in the world...
Siemens Flow Instruments.

 
Read more on the corrosion resistance of Tantaline Diaphragm Seals in:
> Acetic Acid
> Formic Acid
> Hydrochloric Acid
> Hydrogen Chloride (wet)
> Hydrogen Sulfide
> Nitric Acid
> Sour Gas
> Sulfuric Acid
> General Corrosion Resistance
 

EUROPE / MID-EAST / ASIA / AFRICA: Ph: +45-70-200-679 / Fax: +45-70-200-689 / europe@tantaline.com
Nordborgvej 81 L3, DK-6430 Nordborg, Denmark

AMERICAS / PACIFIC: Ph: 1-88-TANTALUM (1-888-268-2586) / Fax 1-888-292-9243 / america@tantaline.com
303 Wyman St. Suite 300, Waltham MA 02451