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Introduction Parker C Series Check Valves are designed for uni-directional flow control of fluids and gases in industries such as chemical processing, oil and gas production and transmission, pharmaceutical, pulp and paper, power and utilities.

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Introduction
Parker C Series Check Valves are designed for uni-directional flow control of fluids and gases in
industries such as chemical processing, oil and gas production and transmission, pharmaceutical, pulp
and paper, power and utilities.

Features
? Resilient, custom molded, blow-out resistant seat design
? Back stopped poppet minimizes spring stress
? 99% factory tested for both crack and reseat
? Cracking pressures include: 1/3, 1, 5, 10, 25, 50, 75, and
100 psi.
? Port connections include male and female NPT, CPI™,
A-LOK®, UltraSeal, VacuSeal, BSP, SAE and Seal-Lok®
? Heat code traceabilitySpecifications
Pressure Rating:**
316 SS – 1/8" to 3/4": ....................6000 psig (414 bar) CWP
1": ..................................5000 psig (345 bar) CWP
All sizes with PTFE Seats: .............4000 psig (276 bar) CWP
Brass – 1/8": to 1": .........................3000 psig (207 bar) CWP
Temperature Rating:
Fluorocarbon Rubber ....... -15°F to +400°F (-26°C to +204°C)
Nitrile ............................... -30°F to +275°F (-34°C to +135°C)
Ethylene Propylene Rubber
......................................... -70°F to +275°F (-57°C to +135°C)
Neoprene Rubber ............ -45°F to +250°F (-43°C to +121°C)
PTFE ............................... -65°F to +400°F (-54°C to +204°C)
Highly Fluorinated Fluorocarbon Rubber
........................................... -15°F to +200°F (-26°C to +93°C)
Orifice: ......................... .078" to .656" (2.0 mm to 16.7 mm)
Cv: ........................................................................ .18 to 6.56

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