Our Water Cooled Dummy Load Series are extraordinary water terminations for 50-ohm coaxial transmission line systems that exhibit excellent and stable RF characteristics during their full range of operating power. The rugged, precision design of the Water Cooled Series provides reliability, serviceability, convenience, and economy well suited for today’s modern RF application.
- Low cost
- Lightweight
- RF power is dissipated in a proven, ceramic, rugged, film-type cylindrical resistor.
- Resistors can easily be replaced.*
- No field adjustments needed.
- Non-contaminating water circuit
- Potable water in open or closed systems
- Brass and aluminum construction
- Rugged construction
- Any operating position
* Factory service recommended for models over 80 kW.
Following are Water Load Manuals by Model Number. Go to the Manuals Page – Water Flange Repair Sections tab for the particular flange ordered.
9705 Manual
9705HF Manual
9715 Manual
9725 Manual
9725 wSB Manual
9750 Manual
9750 wSB Manual
9750HF Manual
9780 Manual
9780 wSB Manual
97125 Manual
57200 Manual
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 800 MHz
VSWR: 1.10:1 to 800MHz
Max. Outlet Water Temp.: 90°C
Max. Inlet Water Pressure: 70PSI
Water Flow: 2gpm
Water Connectors: 3/4″ (garden hose) or 1/2″NPT
RF Connectors: 1 5/8″ EIA or QC (Various)
Dimensions: Approx. 2 3/4″ x 10 3/16″ (7.0 cm x 25.9 cm)
Weight: Approx. 4 lbs. (depending on connections) (1.8 kg)
Finish: Conversion Coating & Bright Nickel
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 800 MHz
VSWR: 1.10:1 to 800MHz
Max. Outlet Water Temp.: 90°C
Max. Inlet Water Pressure: 100PSI
Water Flow: 4gpm
Water Connectors: 3/4″ (garden hose) or 1/2″ NPT
RF Connectors: 1 5/8″ / 3 1/8″ EIA or Flangeless / QC (Various)
Dimensions: Approx. 4 1/2″ x 15″ (11.4 cm x 38.1 cm)
Weight: Approx. 9 1/2 lbs. (4.3 kg)
Finish: Conversion Coating & Bright Nickel
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 800 MHz
VSWR: 1.10:1 to 800 MHz
Max. Outlet Water Temp: 90°C
Max. Inlet Water Pressure: 100PSI
Water Flow: 6gpm
Water Connectors: 3/4″ (garden hose) or 1/2″ NPT
RF Connectors: 3 1/8″ / 6 1/8″ EIA or 3 1/8″ Flangeless / 1 5/8″ or QC (Various)
Dimensions: Approx. 4 1/2″ x 16 1/2″ (11.4 cm x 41.9 cm)
Weight: Approx. 16 lbs. (7.26 kg)
Finish: Conversion Coating & Bright Nickel
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 800 MHz
VSWR: 1.10:1 to 800 MHz
Max. Outlet Water Temp.: 90°C
Max. Inlet Water Pressure: 100PSI
Water Flow: 10gpm
Water Connectors: 3/4″ (garden hose) or 1/2″ NPT
RF Connectors: 3 1/8″ / 6 1/8″ EIA or 3 1/8″ Flangeless / 1 5/8″ /or QC (Various)
Dimensions: Approx. 4 1/2″ x 18 1/2″ (11.4 cm x 47.0 cm)
Weight: Approx. 17 lbs. (8 kg)
Finish: Conversion Coating & Bright Nickel
Power Rating: 80kW continuous CW
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 800 MHz
VSWR: 1.15:1 to 800 MHz
Max. Outlet Water Temp.: 90°C
Max. Inlet Water Pressure: 100PSI
Water Flow: 10gpm
Water Connectors: 3/4″ (garden hose) or 1/2″ NPT
RF Connectors: 4 1/2″ / 6 1/8″ EIA or 3 1/8″ Flangeless / 1 5/8″ /or QC (Various)
Dimensions: Approx. 8 1/2″ x 30″ (21.6 cm x 76.2 cm)
Weight: Approx. 25 lbs. (12 kg)
Finish: Conversion Coating & Bright Nickel
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 450 MHz standard (up to 800 MHz with optimization)
VSWR: 1.15:1 to 800 MHz
Max. Outlet Water Temp.: 90°C
Max. Inlet Water Pressure: 100PSI
Water Flow: 15gpm Minimum
Water Connectors: 3/4″ (garden hose) or 3/4″ NPT
RF Connectors: 3 1/8″ / 6 1/8″ EIA or 3 1/8″ Flangeless
Dimensions: Approx. 8 1/2″ x 31″ (21.6 cm x 78.7 cm)
Weight: Approx. 36 lbs. (16 kg)
Finish: Conversion Coating & Bright Nickel
Model 57200
Power Rating: 200kW continuous CW
Impedance: 50 ohms nominal
Frequency Range: 60 Hz to 450 MHz standard (up to 800 MHz with optimization)
VSWR: 1.15:1 to 800 MHz
Max. Outlet Water Temp: 90°C
Max. Inlet Water Pressure: 100PSI
Water Flow: 19gpm at 45°C Inlet Minimum
Water Connectors: 3/4″ (garden hose) or 3/4″ NPT
RF Connectors: 3 1/8″ / 6 1/8″ EIA or Flangeless
Dimensions: Approx. 8 1/2″ x 42″ (21.6 cm x 106.7 cm)
Weight: Approx. 48 lbs. (17.2 kg)
Finish: Conversion Coating & Bright Nickel