AMC 2026 catalogue

Plumbing

Safety Relief Valves

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1-888-602-0000 PLUMBING

Hot Water Relief Valves Fully automatic valves reseat themselves after relieving pressure. Stainless steel springs. For tankless or closed-loop hot water systems.

RLN158360150

WWG3EEX8 WWG2XLA7

Body Material Inlet Size Outlet Size

Factory Set Pressure BtuH Pressure Range Temp. Range Brand

Item

No. Pressure Relief Valve

Bronze 3⁄4" 3⁄4" 150 PSI 500,000 75 - 150 PSI 0° F - 210° F Cash Acme WWG2XLA7 Safety Relief Valve

Brass 3⁄4" 3⁄4" 30 PSI 510000 30 PSI 0° F - 250° F Cash Acme RLN20166-0030 Cast Bronze 3⁄4" 3⁄4" 125 PSI 791,000 75 - 150 PSI 0° F - 250° F Apollo WWG3EEX8 Bronze 3⁄4" 3⁄4" 150 PSI 500000 75 - 150 PSI 0° F - 210° F Cash Acme RLN14737-0150 Temperature and Pressure Relief Valve

Bronze 3⁄4" 3⁄4" 150 PSI 105000 — — Cash Acme RLN158360150

APOLLO, CASH ACME

Steam Heating Boiler Safety Relief Valves All have top guiding seals and positive condensate drainage for extended service life. Bottom connection and top outlet discharge. MNPT inlet, except No. WWG31LH26 is FNPT. FNPT outlet, except brass models are vented. Bronze disc, except No. WWG3EEY7 is EPDM.

WWG3ETR6 WWG3EEY7 WWG31LH26 WWG31LD58

Inlet Size Outlet Size

Factory Set Pressure Overall Length Overall Height

Seat Material Compliance Temp. Range Brand

Item

No. Brass

1⁄4" — 125 PSI — 2 7⁄8" Bronze — 0° F - 406° F Aquatrol WWG3ETR6 1⁄2" — 125 PSI — 2 7⁄8" Bronze — 0° F - 406° F Aquatrol WWG3ETT9 1⁄2" — 150 PSI — 2 7⁄8" Bronze — 0° F - 406° F Aquatrol WWG3ETU1 Bronze

2" 2 1⁄2" 30 PSI 3 3⁄8" 13 5⁄8" Metal Section I Steam -60° to 406°F Kunkle Valve WWG31LD58 2" 2 1⁄2" 50 PSI 3 3⁄8" 13 5⁄8" Metal Section I Steam -60° to 406°F Kunkle Valve WWG31LD59 2" 2 1⁄2" 125 PSI 3 3⁄8" 13 5⁄8" Metal Section I Steam -60° to 406°F Kunkle Valve WWG31LD63 2" 2 1⁄2" 125 PSI 3 3⁄8" 13 5⁄8" Metal Section VIII Air/Gas -60° to 406°F Kunkle Valve WWG31LE30 2" 2 1⁄2" 150 PSI 3 3⁄8" 13 5⁄8" Metal Section I Steam -60° to 406°F Kunkle Valve WWG31LD64 2" 2 1⁄2" 150 PSI 3 3⁄8" 13 5⁄8" Metal Section VIII Air/Gas -60° to 406°F Kunkle Valve WWG31LE31 Cast Bronze

3⁄4" 3⁄4" 10 PSI 2 3⁄16" 2 7⁄8" EPDM — 0° F - 250° F Apollo WWG3EEY7 Cast Iron

2" 2" 15 PSI 3" 7 1⁄4" Brass Section IV Steam 0° to 250°F Kunkle Valve WWG31LH25 2 1⁄2" 2 1⁄2" 15 PSI 3 1⁄2" 8 1⁄4" Brass Section IV Steam 0° to 250°F Kunkle Valve WWG31LH26 3" 3" 15 PSI 4" 8 3⁄4" Brass Section IV Steam 0° to 250°F Kunkle Valve WWG31LH27

APOLLO, AQUATROL, KUNKLE VALVE

Calibrated Pressure and Vacuum Relief Valves Lead-free valves are certified for use in potable water applications.

WWG5DLZ3 WWG5DLZ1 WWG4YFC4 WWG3ERJ9

Body Material Inlet Size Outlet Size Inlet Type Outlet Type

Factory Set

Pressure Seat Material

Pressure

Range Temp. Range Brand

Item

No. Adjustable Relief Valve

Bronze 3⁄8" 1⁄2" MNPT FNPT 25 PSI Bronze 0 - 100 PSI 0° to 450°F Aquatrol WWG3ERK1 Pressure Relief Valve

Lead-Free Brass 1⁄2" 1⁄2" MNPT FNPT — Buna-N 50 - 175 PSI 0° F - 180° F Watts WWG5DLZ1 Lead-Free Brass 3⁄4" 1⁄2" MNPT FNPT — Buna-N 50 - 175 PSI 0° F - 180° F Watts WWG5DLZ2 Relief Valve

Bronze 1⁄4" 1⁄2" MNPT FNPT 25 PSI Bronze 0 - 100 PSI 0° F - 450° F Aquatrol WWG3ERJ9 Bronze 1⁄4" 1⁄2" MNPT FNPT 50 PSI Bronze 0 - 100 PSI 0° F - 450° F Aquatrol WWG3ETU3 Bronze 3⁄8" 1⁄2" MNPT FNPT 50 PSI Bronze 0 - 100 PSI 0° F - 450° F Aquatrol WWG3ETU4 Brass 3⁄4" 1⁄2" FNPT MNPT — Buna-N 50 - 175 PSI 0° F - 180° F Watts WWG2X318 Tank Pressure Relief Valve

Low-Lead Brass 1⁄2" 1⁄2" FNPT MNPT 75 PSI — — Up to 120° F Campbell WWG4YFC4 Vacuum Temperature and Pressure Relief Valve

Lead-Free Brass 1⁄2" 1⁄2" MNPT MNPT — — 15 PSI 0° F - 250° F Watts WWG5DLZ3

AQUATROL, CAMPBELL, WATTS