Range from ½- to 1-inch sizes with Cv from 0.4 to 10.  These valves can be used to control hot and chilled water with up to 50% glycol and low-pressure steam <15 psi over a temperature range of 35°F to 250°F.

Range from ½- to 6-inch sizes with Cv from 1 to 400.  These valves control hot and chilled water with up to 50% water-glycol and saturated steam up to 100 psi and over a temperature range of 35°F to 337°F. 

These 2-way and 3-way valves range from ½- to 1¼-inch sizes with Cv from 0.9 to 16. Used to control hot or chilled water with up to 50% glycol and low-pressure steam <15 psi with a maximum temperature of 250°F.

• 2-way normally open and normally closed
• 3-way mixing
• Brass or stainless steel trim
• Available with a variety of NPT threaded end connection options
• ANSI Class IV leakage - less than 0.01% of Cv at rated close-off pressure
• Modified equal percentage flow characteristic
• Pneumatic and electro-motoric fail-safe actuators return valves to a fail-safe position in the event of power loss
• Choice of control signals: modulating 0-10Vdc/4-20mA or 24Vac floating 3-position actuators

• 2-way normally open and normally closed
• 3-way mixing
• ANSI 250 pressure class threaded valves; ANSI 125 and 250 pressure class flanged valves
• Equal percentage or linear flow characteristic
• Bronze or stainless steel trim
• High pressure close-off flanged 2-way valves have 200 psi close-off is highest in the industry
• ANSI Class IV leakage 0.01% of Cv at rated close-off pressures for all valves
• High temperature packing for high pressure steam ≤100 psi and media temperature up to 337° F

• 2-way, 3-way mixing, changeover and sequence valves with ½-inch SAE flare connections
• 2-way normally open angle female by union male valves in ½- to 1¼-inch
• ANSI 250 pressure class
• Modified equal percentage flow characteristic
• Available with a variety of pneumatic actuator spring ranges 

• Easy pneumatic to electronic interchange reduces installation time
• 360° actuator swivel rotation is able to fit in tight spaces where other valves will not

• Easy pneumatic to electronic interchange
• Service flange allows for easy access to 3-way valve components without removing valve from line
• Higher close-off pressure meets specifications for more applications
• Serviceable with replaceable packing kits and rebuild kits  to prolong the life of installed valves

• Angled connections with union fittings or SAE flared end connections, which make fan coil cabinet and tubing installations easy
• Fully serviceable for long installed life
• Soft plug design provides an exceptional close-off due to the low force positive sealing
• The 658 Series large diameter pneumatic diaphragm provides precise control of steam and water/glycol solutions

• Baseboard heating
• Fan coil units
• Terminal boxes
• Unit ventilators
• VAV reheat coils

• Air handling units
• Central plants
• Convectors
• Reheat coils
• Unit ventilators

• Baseboard/radiant heat
• Convectors
• Fan coil units
• Induction units
• Reheat coils
• Unit ventilators