3" Pneumatic Control Valve – Class 600 RF | Steel Body | Equal Percentage Trim | Fail-Closed
UsedSpecifications
Description
3" Pneumatic Control Valve – Class 600 RF | Steel Body | Equal Percentage Trim | Fail-Closed
This is a Kimray 412 FMT DB PO pneumatic control valve with 3-inch Class 600 RF connections, steel through-body construction, and equal percentage trim. The valve is rated for 1,480 PSIG maximum working pressure and provides Class VI bubble-tight shutoff for liquid and gas service. The pneumatic actuator is field-reversible and ships configured to fail closed.
Technical Specifications
Connection Size: 3"
Connection Type: 600 RF (Raised Face Flange)
Body Style: Through Body
Body Material: Steel
Trim Size: 3"
Trim Type: Equal Percentage
Leakage Class: Class VI (Bubble-Tight Shutoff)
Process Fluid: Suitable for Liquid and Gas Service
Max Working Pressure: 1,480 PSIG
Face-to-Face Length: 13.25"
Flow Coefficient (Cv): Min 6 / Max 107
Cf: 0.75
Actuator Specifications
Operation: Pneumatic
Actuator Spring Nominal Pressure: 30 PSIG
Crack-Open Pressure: 6 PSIG
Full-Open Pressure: 30 PSIG
Maximum Supply Gas Pressure: 45 PSIG
Fail Position: Closed (Field Reversible)
Compliance & Options
NACE MR0175: Option Available for Sour Gas/Corrosive Service
Catalog Reference: 01:20.1
Key Features
- Rugged steel body designed for high-pressure Class 600 service
- Equal percentage trim for superior flow control and process efficiency
- Field-reversible fail-safe actuator (default fail-closed) for maximum safety
- Class VI shutoff for bubble-tight sealing performance
- Built to handle demanding liquid and gas process applications
Applications
Ideal for oil & gas production, petrochemical plants, power generation, water treatment facilities, and general process control systems requiring high-pressure performance and precise flow regulation.
Inspection, shipping & payment
Terms set by Gas Equipment 4 Sale.
Price on Request
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Seller
Gas Equipment 4 Sale
Waxahachie, TX, United States
Business and location confirmed by Metal Mountain.
Questions buyers ask
What pressure, flow and temperature is it rated for?
This valve is rated for 1,480 PSIG maximum working pressure with a flow coefficient (Cv) ranging from 6 minimum to 107 maximum and a flow factor (Cf) of 0.75. Temperature rating is not specified in the listing; request the seller provide body material grade and trim metallurgy to determine ASME B16.34 pressure-temperature limits for your service conditions.
What gases is it compatible with, and has it been oxygen cleaned?
The valve is suitable for liquid and gas service, with NACE MR0175 compliance available as an option for sour gas or corrosive environments. No oxygen cleaning certification is mentioned; if you require oxygen service, confirm with the seller whether it has been cleaned to CGA G-4.1 or ASTM G93 standards and request documentation.
What materials are the wetted parts?
The body material is listed as steel, but the specific grade (carbon steel, stainless, etc.) and the trim materials (plug, seat, stem) are not detailed. Request a full materials specification from the seller, particularly if you need corrosion resistance, low-temperature service, or specific alloy compatibility for your process fluid.
What should I inspect before putting it into service?
Verify Class VI shutoff performance with a seat leakage test per ANSI/FCI 70-2, inspect the equal percentage trim for erosion or cavitation damage, and confirm the actuator diaphragm and springs respond correctly across the 6-30 PSIG operating range. Check all raised-face flange surfaces for damage, verify gasket groove condition, stroke the valve through its full travel to detect binding or stem packing issues, and confirm the fail-closed action operates properly on air loss.
General guidance for this type of equipment. Ask about this specific unit in your inquiry — the seller answers directly.