Pressure Limiting Unit WABCO 9750090040

The WABCO Air Brake Pressure Protection Valve 9750090040 keeps a primary air circuit protected when a secondary circuit’s demand, or a developing leak, would otherwise pull air away from it. This kind of protection matters most on multi-circuit trucks where accessories, trailer supply lines, or auxiliary equipment share air with the service brakes. Once the primary circuit reaches its set pressure, the valve opens and lets air flow onward, so the main service brakes are never left waiting on a secondary demand. Fleet technicians specify the WABCO 9750090040 whenever a truck’s circuit-protection logic needs a dependable, direct-fit replacement.

Features & Benefits for Pressure Limiting Unit WABCO 9750090040:

• Requires no manual adjustment once the valve is installed
• Operates automatically without requiring any added driver monitoring
• Suited for retrofit into a variety of air-brake layouts
• Straightforward single-valve design reduces complexity in the circuit
  

Technical Specifications for Pressure Limiting Unit WABCO 9750090040:
* Calculated Volume: 0.95758 dm³
* Comments: Sealing flouro-rubber
* Delivered pressure: 80 at p1 = 131 psi
* Electrical connection: Bayonet DIN 72585 A1-2.1-Sn/K2
* Max. operating pressure: 145.0 psi
* Mounting: 2x Ø 8 mm* Nominal diameter: 1.0 mm
* Nominal flow rate: 0.025 (L/min)* Port thread 11: 3/8″ – 18 NPTF JED – 686
* Port thread 2: 3/8″ – 18 NPTF JED – 686* Port thread 3: Flap Exhaust
* Temperature range: -40°C to +80°C
* Voltage: 12 V
* Size: 127 x 58 x 130 mm x mm x mm
* UPC: 193133450474
* Weight: 0.581 kg
* Weight: 1.2809 lb

OE CODES:

* FREIGHTLINER: TDAS9750090040
* INTERNATIONAL: S9750090040
* KENWORTH: S975-009-004-0
* MACK: 8235-S9750090040
* MACK: 6300-9750090040
* MERITOR: S9750090040
* PETERBILT: S975-009-004-0
* VOLVO: TDAS9750090040
* VOLVO: WAB9750090040