Page 123 - Suttner Product Catalog - 2025-2026

UNLOADERS

ST-285 UNLOADER VALVES (high flow)
ORDER # PRESSURE TEMP. FLOW RATE WEIGHT NEW!
200285550 3600 PSI 194° F 26 GPM 2.10 lb
200285500 3600 PSI 194° F 26 GPM 2.10 lb
INLET OUTLET BYPASS
1/2" FPT 1/2" FPT 1/2" FPT
Repair Kit: #200265430

• High-quality combination of materials.
• Fatigue-free spring.
• Sealing seats in high grade stainless steel and ceramic #200285500
ball in bypass.

#200285550
with switch

ST-291 UNLOADER VALVE (5070 psi)
ORDER # PRESSURE TEMP. FLOW RATE INLET
200291500 850 - 5070 PSI 194° F 8 GPM 3/8" FPT
OUTLET BYPASS WEIGHT BOX QTY
3/8" FPT 1/2" FPT 2.60 lb 15
Repair Kits: Seal Seat #200291485
Check Valve #200291490
Piston Rod #200291495

REPLACEMENT PARTS:

REPLACEMENT SWITCH

For ST-265
ORDER #
200265430

PANEL MOUNT NUT
For ST-261, ST-261I,
ST-261S & ST-261SI

ORDER # MATERIAL Panel
010003150 Brass Mount Nut

• Threads onto unloader for mounting to panel.

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SUTTNER AMERICA COMPANY 123