133 Series Direct-Operated Regulators 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 and without disassembly of actuator portion; orifice 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. • 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 over a wide range of flow conditions.

Bulletin 71.1:133 Specifications The Specifications section lists the specifications for the Type 133 Series direct-operated regulators. Factory specification is stamped on the nameplate fastened on the regulator at the factory. Available Constructions Type 133H: Direct-operated regulator for inlet pressures to 60 psig / 4.1 bar and outlet pressures from 1.5 to 10 psig / 0.10 to 0.69 bar, three ranges. Type 133HP: Direct-operated regulator for inlet pressures to 150 psig / 10.3 bar and outlet pressures from 2 to 60 psig / 0.14 to 4.1 bar, seven ranges. Type 133L: Direct-operated regulator for...

TYPE 133Z ZERO GOVERNOR TYPE 133L LOW-PRESSURE REGULATOR RESTRICTION COLLAR IDENTIFICATION GROOVE 1 ORIFICE VALVE DISK TRIM PARTS WITH RESTRICTION COLLAR (40% CAPACITY COLLAR IS SHOWN) TYPE 133H WITHOUT RESTRICTION COLLAR 1 IDENTIFICATION GROOVES: 25% CAPACITY COLLAR—NO GROOVES 40% CAPACITY COLLAR—ONE GROOVE 60% CAPACITY COLLAR—TWO GROOVES Figure 2. Types 133Z, 133L, and 133H Regulators

Bulletin 71.1:133 Introduction Description The 133 Series direct-operated gas regulators, shown in Figure 1 are primarily designed for industrial and commercial applications supplying gas to furnaces, burners, and other appliances. The 133 Series balancing system enables the regulator to provide accurate control of gas pressure for maximum combustion efficiency despite varying inlet pressure conditions. The single port construction provides bubble-tight shutoff. An external downstream control line is required for the operation of the regulator. Refer to Table 1 for outlet pressure ranges of each...

CONTROL SPRING INLET PRESSURE DOWNSTREAM OUTLET PRESSURE ATMOSPHERIC PRESSURE CONTROL LINE LOADING PRESSURE INTERMEDIATE PRESSURE PILOT SUPPLY PRESSURE VACUUM PRESSURE TANK PRESSURE VAPOR PRESSURE BALANCING RELIEF PRESSURE DIAPHRAGM BOOST PRESSURE STEM ORIFICE VENT ASSEMBLY DOWNSTREAM CONTROL LINE VALVE DISK REGISTRATION DISK INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE BOOST PRESSURE INLET PRESSURE OUTLET PRESSURE INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE ATMOSPHERIC PRESSURE BOOST PRESSURE BOOST PRESSURE Figure 4. Operational Schematics stabilizer against the orifice plate....

Bulletin 71.1:133 Table 1. 133 Series Outlet Pressure Ranges, Control Springs OUTLET PRESSURE RANGE TYPE CONTROL SPRINGS Part Number 2 to 4 inches w.c. 3.5 to 6 inches w.c. 5 to 9 inches w.c. 8.5 to 18 inches w.c. 14 to 28 inches w.c. 0.75 to 2 -1 to 1 inch w.c. Free Length Color Code Orange Yellow Blue Yellow Orange Silver Red Blue Green White Brown Red Black White Green Blue 1K633427012 (Extension Spring) and 1D892527022 (Compression Spring) Wire Diameter   1.  Pressure ranges shown are correct if the regulator is installed with the actuator portion above the body portion. If the regulator...

TWO-WAY STABILIZER VENT VALVE IN “UP” POSITION AS DIAPHRAGM RISES VENT VALVE IN “DOWN” POSITION AS DIAPHRAGM LOWERS Figure 5. Types 133H, 133L, and 133Z Stabilizer Vent For restricted-capacity constructions, determine flow capacities for outlet pressure settings of 2 psig / 0.14 bar or less by multiplying the values from Tables 3 to 10 by 25%, 40%, or 60% (depending upon which restriction collar is selected). For pressure settings over 2 psig / 0.14 bar, capacities are given in Table 6. If flow capacities for inlet pressures lower than those shown are required, contact your local Sales Office....

Bulletin 71.1:133 Table 4. Full-Capacity Type 133L Regulated Flow in Thousands of SCFH of 0.6 Specific Gravity Gas at 14.7 psia and 60°F OUTLET PRESSURE SETTING(1), SPRING PART NUMBER, AND OUTLET PRESSURE RANGE INLET PRESSURE 4 inches w.c. / 10 mbar 1D892527022 2 to 4 inches w.c. / 5 to 10 mbar 6 inches w.c. / 15 mbar 1D892627022 3.5 to 6 inches w.c. / 8.7 to 15 mbar 7 inches w.c. / 17 mbar 1D892727012 5 to 9 inches w.c. / 12 to 22 mbar 1 inch w.c. / 3 mbar Droop 1 inch w.c. / 3 mbar Droop 1 inch w.c. / 3 mbar Droop SCFH Nm3/h SCFH Nm3/h SCFH 14 inches w.c. / 35 mbar 1D893227032 8.5 to 18 inches...

Bulletin 71.1:133 OUTLET PRESSURE, psig / bar OUTLET PRESSURE, inch w.c. / mbar CAPACITY AND REGULATION 2 inch / DN 50 TYPE 133Z SPRING COMPRESSION - 1D892527022 EXTENSION - 1K633427012 SETPOINT: INLET PRESSURE: 1 psig / 0.07 bar   OUTLET PRESSURE: 1 inch w.c. / 2 mbar   FLOW: 3000 SCFH / 80.4 Nm3/h 3/7 2/5 1/2 0/0 CAPACITY AND REGULATION 2 inch / DN 50 TYPE 133L SPRING 1D893327032 SETPOINT: INLET PRESSURE: 40 psig / 2.8 bar   OUTLET PRESSURE: 1 psig / 0.07 bar   FLOW: 11,000 SCFH / 295 Nm3/h 20 psig / 30 psig / 40 psig / 50 psig / 60 psig / 1.4 bar 2.1 bar 2.8 bar 3.4 bar 4.1 bar OUTLET PRESSURE,...