Indiginiously design and developed precision oval gear for positive displacement flow sensor with pulse/ 4 to 20 mA/ RS 485 output, 

Its measuring flow volume with two oval shape gear, Gear rotate when flow pass on measuring chamber and magnetic pickup sensor use for measuring nos of rotation of gear, and each rotation equal to fix volume of  fluid. 


Oval gear fuel flow sensor technical specification:
CE certified product
Working  principle: oval gear positive displacement
Accuracy (standard installation position) : ±0.1% FSD or 0.5%RS
Repeatability    : 0.01%
Output signal: NPN Open collector : 5 vdc to 24 v dc
REED switch : 30 vdc
Magnetic pickup coil : 12v dc to 24v dc

Maximum working pressure:

MPa = 50 bar  for aluminum body
MPa = 250 bar for s.s. body
above 250 bar please contact company

Fluid &Ambient temperature: -40 to80/120/150°C


Material of construction:

Rotor and casing       :    Aluminum anodize/ PPS/S.S-316

O-ring                        :     NBR/VITON/SILICON

Shaft                          :     Stainless Steel/ hastelloy

Model no                Line size                     Range                Litter/pulse

BT-DOFS-003      4mm--  1/4” Thread      0.05~30L/H         0.000333 L/P

BT-DOFS-004      4mm --1/4” Thread       0.2~60L/H          0.000416 L/P

BT-DOFS-006      6mm --1/4” Thread       5~150L/H           0.000661 L/P

BT-DOFS-008      8 mm--3/8” Thread       20~300L/H          0.0025 L/P

BT-DOFS-012     12 mm--½” Thread         50~1200L/H         0.0025 L/P

BT-DOFS-020     20 mm--3/4” Thread       150~2,000L/H       0.0154 L/P

BT-DOFS-025     25 mm--1” Thread         200~4,000L/H       0.0256 L/P

BT-DOFS-040     40 mm-- 1.5” Flange      00~10,000L/H       0.086 L/P

BT-DOFS-050     50 mm-- 2” Flange        600~20,000L/H      0.19 L/P

BT-DOFS-080     80 mm -- 3” Flange       1,000~50,000L/H    0.54 L/P

BT-DOFS-100     100 mm--  4” Flange     2,000~100,000L/H    1.0 L/P

BT-DOFS-150     150 mm--  4” Flange     5,000~150,000L/H    3.2 L/P