Liquip NRV80 sandwich type non-return valve is typically fitted between standard 3" TTMA or 80mm DIN pipeline flanges, predominantly in aviation refuellers.
Eaton’s Carter brand Models 64500 and 64510 are the latest innovation in 3 & 4 inch inline air reference pressure operated control valves.
Liquip ball valvesd are 2-piece stainless steel floating ball type valves with teflon trim.
These in-line ball valves are 2-piece either stainless steel or nickel-plated brass double-female BSP valves & Teflon trim.
The "Apollo"™ whilst a registered Brand name has become a generic term for spring-loaded /return or "deadman" pull-down handle valves.
Internal valve with integral elbow, designed for use on aircraft refueller tankers which have small sample or drain lines.