O’Keefe Controls Co.
O’Keefe Controls Co.
4 Maple Drive
Monroe, CT 06468
Phone: 203.261.6711
Email: info@okeefecontrols.com • Website: www.okeefecontrols.com
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    Fixed flow controls are a parallel arrangement of a ball check valve and a precision orifice. Free flow occurs in one direction and metered flow occurs in the opposite direction. Suitable for both liquids and gases the fixed flow controls are available in brass or stainless steel.
Fixed Flow Controls, Ball Type NPT Nipple
Fixed Flow Controls, Ball Type - NPT Nipple - Line Drawing
Unit of Measure
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Part Number

Material

DIFFERENTIAL CRACK PRESSURE

Orifice CV (return)

Screened

ELF-24-2-BR N/A Brass N/A 2 psig N/A 0.013 N/A None
ELF-25-2-BR N/A Brass N/A 2 psig N/A 0.014 N/A None
ELF-26-2-BR N/A Brass N/A 2 psig N/A 0.016 N/A None
ELF-27-2-BR N/A Brass N/A 2 psig N/A 0.017 N/A None
ELF-28-2-BR N/A Brass N/A 2 psig N/A 0.018 N/A None
ELF-29-2-BR N/A Brass N/A 2 psig N/A 0.019 N/A None
ELF-31-2-BR N/A Brass N/A 2 psig N/A 0.022 N/A None
ELF-32-2-BR N/A Brass N/A 2 psig N/A 0.024 N/A None
ELF-33-2-BR N/A Brass N/A 2 psig N/A 0.025 N/A None
ELF-35-2-BR N/A Brass N/A 2 psig N/A 0.028 N/A None
ELF-37-2-BR N/A Brass N/A 2 psig N/A 0.031 N/A None
ELF-38-2-BR N/A Brass N/A 2 psig N/A 0.032 N/A None
ELF-39-2-BR N/A Brass N/A 2 psig N/A 0.033 N/A None
ELF-40-2-BR N/A Brass N/A 2 psig N/A 0.036 N/A None
ELF-41-2-BR N/A Brass N/A 2 psig N/A 0.038 N/A None
ELF-42-2-BR N/A Brass N/A 2 psig N/A 0.039 N/A None
ELF-43-2-BR N/A Brass N/A 2 psig N/A 0.041 N/A None
ELF-47-2-BR N/A Brass N/A 2 psig N/A 0.048 N/A None
ELF-52-2-BR N/A Brass N/A 2 psig N/A 0.059 N/A None
ELF-55-2-BR N/A Brass N/A 2 psig N/A 0.068 N/A None
ELF-60-2-BR N/A Brass N/A 2 psig N/A 0.081 N/A None
ELF-63-2-BR N/A Brass N/A 2 psig N/A 0.088 N/A None
ELF-67-2-BR N/A Brass N/A 2 psig N/A 0.10 N/A None
ELF-70-2-BR N/A Brass N/A 2 psig N/A 0.11 N/A None
ELF-73-2-BR N/A Brass N/A 2 psig N/A 0.12 N/A None
Unit of Measure
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