See our Installation, Operation, and Maintenance manual:

O&M Manual


The following are just some of the features that have made Conant Controls Valves among the most reliable in the industry:

Pressure Temperature Ratings

Material Pressure Rating (PSI) Temperature (F)
Aluminum Single Stack Valve 0-250 70
Brass Single Stack Valve 0-250 70
316 SS Single Stack Valve 0-1000 70
Hastelloy Valves 0-250 70
Aluminum Multi Stack 0-150 70
Brass Multi Stack 0-150 70
316 SS Multi Stack 0-150 70
Consult Factory for applications requiring higher pressure ratings and operating temperatures

Cv Values

Size Orifice Diameter (in)
5 Way
4 Way
3 Way
2 Way
1/8" 0.125 0.3 0.14 0.3 0.3
1/4" 0.228 1.15 0.55 1.15 1.15
3/8" 0.375 2 1.33 2 2
1/2" 0.435 3.69 2.4 3.69 3.69
Cv values for 5 way stack valves are approximately 25% lower.


Exploded View 316 SS Rotors


Exploded View Solid PTFE Rotor


Not just a coating, but solid PTFE, used in the sleeve or rotor of the valve has natural, self lubricating properties and a low coefficient of friction. Therefore, there is no need for oil or grease. PTFE has lower friction than any other solid material including graphite and molybdenum disulfide, and its lubricity results in smoother movement and operation of the valve.

Wear Resistance

In operation, thin films of PTFE are transferred from the rotor to the mating surface (or vice versa) in the body of the valve until it is coated with PTFE. Thus, the condition becomes one of PTFE sliding against PTFE. After the initial break-in period, this produces a surface with extremely low wear and eliminates fretting and galling.

Chemical Resistance

Valves are completely resistant to nearly all chemicals, gases, and solvents, such as strong caustics, sulfuric and hydrofluoric acids, aqua regia, and solvents, such as aliphatic and aromatic hydrocarbons, alcohols, esters, ketones, and ethers up to their boiling points.

Installation, Operations, & Maintenance

General Operating Instructions

  • Operate valve within pressure and temperature range.
  • Select a valve material that is compatible with the media. Consult factory for recommendations for wetted media.
  • Do not use valve with media containing particulate.
  • Do not use excessive force in operating the valve.
  • Allow sufficient space for maintenance and inspection.
  • Keep valve away from excessive heat or fire.

Transportation, Unpacking, and Storing

  • Keep valve packed in the carton or box as delivered until installation.
  • Do not impact or drop the valve.
  • Protect valve from scratches and dents due to mishandling.

Installation Procedure

  • Necessary Items
    • PTFE sealing tape or pipe dope.
    • Strap wrench (To avoid damage to valve).
    • Adjustable wrench
    • Mounting hardware (1/4 – 20 Hardware).
    • Hand tools to mount valve.
  • Pipe Connection Procedure
    • Wind sealing tape around male thread of joint 1.5 – 2 times.
    • Insert male thread into valve using a clock wise motion to engage thread. Take steps to avoid cross threading.
    • Hand tighten joint.
    • Using strap wrench to hold valve, tighten joint using adjustable wrench ½ to ¾ additional rotation as needed.

    Caution: Avoid excessive tightening.
    Caution: Avoid installation of plastic valves using metal fittings. Over tightening will result in damage to valve body.

  • Valve Mounting Procedure
    • Valve should be securely mounted to panel or wall plate using 1/4 – 20 hardware. Length of hardware dependent on thickness of mounting surface.
    • If valve cannot be mounted insure adequate support of connecting pipe to resist torque applied during valve operation.

Operating Procedure

  • Control flow by moving pointer on valve handle to required port.
  • Insure that piping is connected per porting design to insure accurate control of media.

Operating Procedure

Disassembly & Repair Procedure

  • It is never recommended to open valve in the field. Only factory authorized and trained individuals should disassemble valve.

Caution: Valve is assembled under load at factory!! Do not disassemble!!

Trouble Shooting

Problem Cause Solution
Rotation of handle requires excessive
The PTFE seat will cold flow if valve remains inactive raising operational torque. Operational torque will reduce after initial break in period.
Media leaks from valve when closed. There is particulate in seating area.
Valve is not in correct position.
Seat has worn
Flush valve.
Reposition valve handle.
Return to factory for repair/replacement
Handle fails to engage Loose screw
Knurl has worn out on handle.
Tighten screw holding handle.
Replace handle.