133 Series Self-Operated Regulators0 pages

Bulletin 71.1:133
June 2013

133 Series Direct-Operated Regulators

W6803/IL

W1327/IL

TYPES 133H, 133L, AND 133Z REGULATORS

TYPE 133HP REGULATOR

Figure 1. 133 Series Direct-Operated Regulators

Features
• Wide Pressure Range Capability with Single
Regulator—Type 133H may also use Type 133L
springs, allowing pressure settings to be varied
between 2 inches w.c. and 10 psig / 5 mbar and
0.69 bar by changing springs.
• Types 133L, 133H, and 133HP Suitable for
Monitoring Applications—O-ring stem seal on
Types 133L, 133H, and 133HP isolates body
pressure from controlled pressure.
• Excellent Shock Characteristics and Fast
Speed of Response—Due to two-way stabilizer
vent valve, which vents the spring case more
rapidly than conventional vents, lag in diaphragm
and valve disk movement is minimized.

• No Seat-to-Seat Adjustment Required—Balanced
single-port design eliminates necessity for seat-toseat adjustments to achieve bubble-tight shutoff.
• Easy Access to Trim Parts—Valve seat, disk, and
cage easily removed with body remaining in line
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is not threaded in.
• Reusable Pressure Seals—O-rings used for
pressure seals, unlike gaskets, are not ordinarily
damaged by disassembling the regulator.
• Resistance to Piping Stresses—Steel
constructions are available to help resist pipe stresses.

D100118X012

• Bubble-Tight Shutoff—Single-port construction,
large diaphragm area, and light-rate springs along
with disk material and seat design provide low
lock-up pressures.

• Spring and Diaphragm Effects Minimized—
Boosting system provides excellent performance
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