Designers & Builders of Tank Trucks since 1948
Emergency Valve
Aluminum Tapered Seat Style
  • Stainless Trim
  • Teflon Encapsulated Seals
Betts tapered seat emergency valves are designed and manufactured to use Teflon encapsulated seals for compatibility with a wide range of products. Body is constructed of aluminum with stainless steel trim. Shear section tested per TTMA RP84 and meets 49CFR178.345-8.

Air operated valves are provided with an external air cylinder to help prevent gasoline or other products from contaminating the air supply. The air cylinder is hard-coated aluminum with a polished stainless steel shaft. Cylinders have 1/8" NPT port for air connection and are supplied with a fusible plug installed.
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Item #

Item Name



Seal Material

Vendor Item #


Qty Req'd for Discount

% Discount at Checkout

BETEV46454ALTS N/A Emergency Valve N/A 4 " N/A Flanged 90º N/A Tef-O-Sil N/A EV46454ALTS $425.47 N/A 4 N/A 6 %
BETEV46455ALTS N/A Emergency Valve N/A 4 " N/A Grooved 90º N/A Tef-O-Sil N/A EV46455ALTS $425.47 N/A 4 N/A 6 %
BETAC35005ALB N/A External Air Cylinder N/A N/A N/A Buna N/A AC35005ALB $229.44 N/A N/A
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