Aqua Environment Co. Inc.
Aqua Environment Co. Inc.
3100 Kerner Boulevard, Suite N
San Rafael, CA 94901
Billing/Invoicing Address:
Aqua Environment
P.O. Box 935
Stinson Beach, CA 94970
Phone: 415-453-8157
Fax: 415-453-0688
Email: support@aquaenvironment.com
Website: www.aquaenvironmentinc.com
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1/4 in. NPT series relief valves, 0-6000 psi. British pipe thread version and other options available.
504 Relief Valves
Unit of Measure
1 

Item #

Special Features

Maximum Rated Pressure

Inlet Port Size

Flow Coefficient (Cv)

Weight

Overall Length

List Price

504 N/A N/A 6000 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $82.00
504-1 N/A British Pipe Thread N/A 6000 psi N/A 3/8 in. British straight N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $151.00
504-B N/A Nickel Plated Brass N/A 6000 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 95 g N/A 2.5 Inch $106.00
504-H N/A Extended Set Pressure N/A 6500 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $87.00
504-1-H N/A British Pipe Thread Extended Set Pressure N/A 6500 psi N/A 3/8 in. British straight N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $155.00
504-B-H N/A Extended Set Pressure Nickel Plated Brass N/A 6500 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 95 g N/A 2.5 Inch $111.00
504-L N/A Low Temperature N/A 6000 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $91.00
504-1-L N/A British Pipe Thread Low Temperature N/A 6000 psi N/A 3/8 in. British straight N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $159.00
504-B-L N/A Low Temperature Nickel Plated Brass N/A 6000 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 95 g N/A 2.5 Inch $114.00
504-H-L N/A Extended Set Pressure Low Temperature N/A 6500 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $98.00
504-1-H-L N/A British Pipe Thread Extended Set Pressure Low Temperature N/A 6500 psi N/A 3/8 in. British straight N/A 0.094 in. orifice diameter N/A 60 g N/A 2.5 Inch $163.00
504-B-H-L N/A Extended Set Pressure Low Temperature Nickel Plated Brass N/A 6500 psi N/A 1/4 in. MNPT N/A 0.094 in. orifice diameter N/A 95 g N/A 2.5 Inch $120.00
Unit of Measure
1