The two-stage differential control valve shall open in one stage and close in two stages based on signals from the preset register. Additionally, in liquid fuel systems, the valve will close as necessary when air is sensed in the air eliminator so as to prevent air from passing through the meter. In LPG systems, the valve will modulate as necessary to keep the valve inlet pressure (meter outlet pressure) a predetermined amount above vapor pressure to ensure that only liquid passes through the meter. The OCV 110-29 is specifically designed for fuel loading systems and performs the following functions:
– Full flow delivery with two stage shutdown
– In liquid fuel systems, prevents air from passing through meter
– In LPG systems, prevents flashing through meter
Size Unit
Size range
Pressure rating
Pressure Rating (ANSI at 100°)
250psi for Class 150# ANSI Flanged Ductile Iron
285psi for Steel/Stainless Steel & Aluminum
300# ANSI Flanges are available
End connection type
Sizes
Threaded Ends: 1¼” – 3″
Grooved Ends: 1½” – 6″ (globe & angle)
Flanged Ends: 1¼” – 24″ (globe); 1¼” – 16″ (angle)
Materials of construction
Body and Cover
Ductile Iron
Carbon Steel
Stainless Steel
Aluminum
Trim Material
Stainless Steel
Optional Components
Two-Stage Opening
Visual Indicator
Pre-Wired Junction Box
OCV 110-29 Terminal
