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Steam Valves

Max-Air Technology partners with process engineers, plant maintenance teams, skid builders, and OEMs to keep boiler rooms, process heating systems, and steam distribution networks across North America holding pressure and holding tight.

 

Max-Air Technology produces steam-rated valve products,
fail-safe and overrides, and automation built for high-temperature service.

Valves for Saturated and Superheated Steam

RATED FOR THE HEAT.
BUILT FOR THE CYCLE.

At Max-Air Technology, we understand what steam service does to a valve. Saturated steam systems can see condensate, particularly during startup, low-load operation, or where drainage is inadequate. Wet steam and repeated thermal cycling increase erosion, seat wear, and packing stress, and can cause seat distortion over time.

Our steam valves are specified around the seat, not just the body rating. For saturated service, the Sesto line stocks both the 50/50 seat (PTFE reinforced with 316 stainless) and PEEK. Graphite packing and firesafe body gaskets hold their seal through the same cycles. The Delta T 800 Series is also available for saturated steam, with a wide range of soft seat options and metal-seated construction.

Superheated service can demand metal-to-metal seating, particularly as temperature and pressure increase. The Delta T 900 Series triple offset provides metal-seated construction for demanding high-temperature service, and forged Sesto ball valves extend metal-seated options into higher-pressure applications.

No two steam systems are the same. That’s why Max-Air Technology works closely with our partners to match the valve to your operating pressure, saturation temperature, duty cycle, and fail position. Whether you’re building a new boiler skid, rebuilding a distribution header, or replacing valves that quit sealing after the first heating season, our team is ready to spec the right body, seat, and actuator together.

M15F Series

Class 150
SS, Carbon, & Alloy 20
Flanged Service,
Corrosive Media

Direct Mount
2-Piece
Flanged
Class 150
1/2″- 8″+
V-Ball Options

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M30F Series

Class 300
Stainless & Carbon
Higher Pressure,
Corrosive Media

Bracket Mount
2-Piece
Flanged
Class 300
1/2″- 8″+
V-Ball Options

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M22N Series

2000 WOG
Stainless & Carbon
Higher Pressure,
Sealed Body Construction

Direct Mount
Sealweld, NPT
2000 WOG
1/4″- 2″

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M32 Series

2000 WOG
Stainless, Carbon, & Alloy 20
Higher Pressure,
Corrosive Media

Direct Mount
NPT, SW, BW, Flanged
2000 WOG
(Flanged Class 600)
1/4″- 3″
V-Ball Options

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MV1F Series

Class 150
Stainless & Carbon
Slurry, Throttling
& Flow Control

Direct Mount
Segmented
Flanged
Class 150
1″- 16″
100° V-Port

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800 Series

Class 150, 300, 600
High Performance
General

2″ – 72″+
Wafer, Lug, Flanged
Bubble-tight, bi-directional;
dead-end service in lug/flanged
API 607 options
(Specialty Alloys Available)

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900 Series

Class 150, 300, 600
Zero Leakage, Steam,
Thermal Cycling

3″ – 72″+
Wafer, Lug, Flanged
Class VI / Bubble-Tight
Metal-Seated in Preferred Direction
API 6FA/607 Options
(Specialty Alloys Available)

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Forged Valves

#150 – #2500
Higher Pressure,
Severe Service

Floating
Trunnion
Floating Multiport
Trunnion Multiport
Block & Bleed
(Specialty Alloys Available)

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Check Out These Case Studies!

1-1/2” SS Trunnion, ANSI 1500#, Metal Seated, Zero Leakage, Completed in Less Than 3 Months Case StudiesSesto Forged
November 26, 2025

1-1/2” SS Trunnion, ANSI 1500#, Metal Seated, Zero Leakage, Completed in Less Than 3 Months

This 1-1/2” SS Trunnion, class 1500, was designed with a seat combination configuration which will assure no leakage in the designated flow direction but will self relieve to the upstream pipe as required. The valve is mounted to a customer supplied actuator and ready for…
Max-Air Technology
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Custom Forged Sesto Trunnion Ball Valves w/ Air Controls, Explosion Proof Termination, & Pneumatic Actuators Case StudiesHD SeriesLimit SwitchesMT SeriesSesto ForgedSolenoid Valves
July 28, 2025

Custom Forged Sesto Trunnion Ball Valves w/ Air Controls, Explosion Proof Termination, & Pneumatic Actuators

Even more Pneumatically Automated Explosion Proof Forged Trunnion Valves are shipping today! This order is a great example of the transition point between affordability of a Rack & Pinion and Scotch Yoke. At some point in the consideration of a higher torque actuator, the decision…
Max-Air Technology
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3-PC 2000 WOG Ball Valves w/ Extended Butt Weld End Connections Automated w/ Pneumatic & Electric Actuators Case StudiesLimit SwitchesM32 SeriesMA SeriesMT SeriesSolenoid Valves
July 28, 2025

3-PC 2000 WOG Ball Valves w/ Extended Butt Weld End Connections Automated w/ Pneumatic & Electric Actuators

This is a fantastic example of our Extended Butt Weld End Connections available on our Sesto M32 Series 2000 WOG Ball Valves! These are being automated by our Max-Air Rack & Pinion and MA Series Max-Electric Actuators.
Max-Air Technology
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