Betts tapered seat emergency valves are designed and manufactured with Teflon-encapsulated seals for compatibility with a wide range of products. The body is constructed of aluminum with stainless steel trim, and the shear section is tested per TTMA RP84 and meets 49CFR178.345-8. Air-operated valves include an external air cylinder to help keep gasoline or other products from contaminating the air supply.
- Size: 4 inches
- Body Material: Aluminum
- Trim Material: Stainless Steel
- Outlet Style: Grooved, 90 Degrees
- Actuation: External Air Operated
- Seal Type: Tef-O-Sil (Teflon-Encapsulated)
- Shear Section: Tested per TTMA RP84, meets 49CFR178.345-8








