Brochure
58
Regulators
How to Size Series 754 Valves
1. Determine the available initial steam inlet pressure.
2. Determine the reduced outlet pressure required based
on your equipment.
3. Determine the capacity required.
4. Apply the specifications (as determined in steps (1-3) to
the basic steam capacity table on the following page,
and the information below.
Self-Contained Pressure Reducing Valves
Series 754
The Series 754 is designed for applications such as
commercial kitchens, labs, dry cleaners, or others that
require system pressure reduction of steam in small
equipment.
• For steam service
• For controlling steam pressure, where an accurate tight
closing valve is required, on applications such as:
– Small sterilizers
– Cooking kettles or tables
– Hand irons
– Heating coils
– Coffee urns
– Unit heaters and pressing machines
• Adjustable outlet pressure
• Single seated for dead-end or continuous service
• Sizes 1⁄2" - 1" NPT
• Maximum pressure drop 100 psi (6.9 bar) – for more
than 100 psi (6.9 bar) use multiple valves in series
• Minimum reduced pressure 1 psig (.069 bar)
• Maximum non-shock pressure 250 psig (17.3 bar) at
400°F (204°C)
• Maximum temperature 400°F (204°C)
C
B
*
A
Dimensions in. (mm)
NPT Weight
Size (Approx.)
in. ABlbs. (kg)
1
/2 3
1
/4 (82) 6
1
/2 (165) 8 (3.6)
3
/4 3
1
/4 (82) 6
1
/2 (165) 8 (3.6)
14
1
/2 (114) 8
1
/2 (216) 18 (8.2)
Materials of Construction
Part Specifications
Body Cast Iron
Seat Stainless Steel
Diaphragm Phosphor Bronze
Disc Stainless Steel
Spring Steel–Cadmium Plated
Connections Screwed NPT
Outlet Pressure
Model Part NPT Size Range
Number Number In. psig (bar)
754 403050
1
/2 0 - 10 (0 - 0.69)
754 403051
1
/2 10 - 50 (0.69 - 3.5)
754 403052
1
/2 40 - 100 (2.8 - 6.9)
754 403053
3
/4 0 - 10 (0 - 0.69)
754 403054
3
/4 10 - 50 (0.69 - 3.5)
754 403055
3
/4 40 - 100 (2.8 - 6.9)
754 403056 1 0 - 10 (0 - 0.69)
754 403057 1 10 - 30 (0.69 - 2.1)
754 403058 1 30 - 50 (2.0 - 3.5)
754 403059 1 40 - 85 (2.8 - 5.8)
Ordering Information
Hoffman Specialty
®
Regulators