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{"title":"Pressure \/ Flow Control Skid And KOSO Valves With 6300RA\/6300RB\/5200LA Pneumatic","imgUrl":"https:\/\/img.chinax.com\/nimg\/2e\/f3\/769fe30d6097faec4a7881e9a5c2-200x200-1\/pressure_2f_flow_control_skid_and_koso_valves_with_6300ra_2f6300rb_2f5200la_pneumatic_actuators_with_epa800_2fepb800_cl420_2fcl523.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"6300RA\/6300RB\/5200LA","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Pressure \/ Flow Control Skid Clothes And KOSO Valve With 3620R\/3500R\/3500L\/3600R","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/eb\/018c902fbf8dc9be4f99ee202124-200x200-1\/pressure_2f_flow_control_skid_clothes_and_koso_valve_with_3620r_2f3500r_2f3500l_2f3600r_2f3600l_2f3620r_2f3620l_solid_state_electr.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"koso 3620R\/3620L","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
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The SAMSON Type 6493 is a pneumatic-only differential pressure controller that uses a diaphragm and torque-tube system to produce a 3–15 psig output signal. It is a no-electronics solution for maintaining differential pressure in steam, water and gas systems. Plants with pneumatic instrumentation or hazardous areas often select it for its simplicity and proven long-term reliability.
Technical Specifications
Parameter
Specification
Measuring System
Diaphragm force-balance
Set Point Range
0.02–2 bar (0.3–29 psi) typical
Supply Air
1.4 bar ±0.1 bar (20 psig ±1.5 psi)
Output
0.2–1.0 bar (3–15 psig)
Proportional Band
Adjustable 2–200 %
Reset Time
Adjustable 0.1–30 min
Ambient Temperature
–20 … +80 °C (–4 … +176 °F)
Protection
IP 54
Housing
Aluminum (standard)
Application Industry
Steam supply differential control
Pump recirculation lines
Heat exchanger differential pressure
Tank pressure equalization
Pneumatic control in hazardous zones
Common Problems & Solutions
Problem: Hunting or instability → Solution: Adjust gain (proportional band) and reset time
Problem: No output pressure → Solution: Check supply air filter and nozzle cleanliness
Problem: Calibration drift → Solution: Easy local setpoint and zero adjustment
Replacement Models
Current SAMSON Type 6493 (still in production)
Older pneumatic differential controllers from SAMSON
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves
Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves
Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...