Description
RELAY EMERGENCY VALVE (CHARGING STYLE, RATIO FEATURE)
PART NUMBER(S):
Fleet Products: 110200-G (New) | OE: Sealco 110200 | Meritor: RSL110200, RSL110200X | Euclid: ESL110200, ESL110200X
DESCRIPTION:
Model: Relay Emergency Valve – Charging Type with Ratio Feature
Vehicles: Pre-FMVSS-121 trailers and single service brake chamber systems
• Supply/Emergency Port: 1/4" NPT
• Control Port: 1/4" NPT
• Reservoir Port: 3/4" NPT
• Delivery Ports: (4) x 3/8" NPT
• Crack Pressure: 4.5 PSI
• Style: Charging (direct reservoir fill)
• Operation: Ratio feature momentarily increases delivery pressure (1:1.5) during hard braking, returning to 1:1 after lap-off
• Compliance: Pre-FMVSS-121 configuration
Applications:
Is this relay valve right for your setup? Yes—designed for older trailer systems using single service chambers, the Sealco 110200-G charging relay emergency valve allows direct reservoir charging from the supply line. It delivers quick, proportional braking response and includes a ratio boost for improved stopping power under heavy braking.
CROSS-REFERENCE(S):
034069, 110200, 110200X, 110200XBXR, 11675, 12350, 14216, 229434, 3640, 36400, A99036, AF71890, AV110200, BEPCO 110200X, Dayton AV110200, Dayton Parts 01362, E-SL110200, ESL110200, ESL110200X, EM36400, GTA-110200, GTA110200, HALKN30010X, Haldex KN30000, Haldex KN30010, Haldex KN30300, Haldex KN30400, K110200, KN3000, KN30000, KN30010, KN30300, KN30400, KN30010X, LEV-3640, Meritor RSL110200, Meritor RSL110200X, MJ110200, MIDKN30010X, PAI 3640, PAI 36400, Pro Trucking TR110200, RSL110200, RSL110200X, SA110200, S-B239, SEA110200, SLC110200, S-B239, TDA RSL110200, Tectran 14411, Tectran TV110200, TR110200, TV110200, TV110200TEC, WA110200, WABCO 229434, 034069, 680-110200, 170.110200, 170.1102, Automann 170.1102, Freightliner TDA RSL110200, PAI EM36400, SAF 4425012600, KRONE 945017, DAF 1325335, KÖGEL 76275, BENALU 605304100, FRUEHAUF CF351193, SCANIA 2090066, PETERBILT S9710021520, HENDRICKSON 9710021520, SAF-HOLLAND 4425012600, SCHMITZ CARGOBULL 050024, SCHMITZ CARGOBULL 50024, KENWORTH S9710021520, MERITOR S9710021520, LANGENDORF 1133359, LOHRA 05020309, NEOPLAN 07110000, DOLL 7078317, FELDBINDER 006713, OTOKAR AIF1787, BENALU 605304100, FRUEHAUF AJCA0070001, FRUEHAUF AJCA03131AJC00701, and additional OE/aftermarket equivalents.
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Designed for pre-FMVSS-121 trailer systems with single service brake chambers.
✔ Charging-style design fills reservoir directly from the supply line (no pressure protection).
✔ Do not use on converter dollies, lift axles, or turntable axle applications.
✔ Verify 4.5 PSI crack pressure and port sizes before installation.
✔ KN30400 and KN30400X valves can also be used for this application.
✔ Plug unused ports and use approved NPT thread sealant.
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Warranty Information
