P99 Pressure Reducing Regulator Applications • City / District gate operation • Commercial buildings • Boilers, furnace, oven • Plant air service • 5 Pilot choices for low to extra high pressure • Up to 1,000 psi inlet when fitted with a P39 reducing regulator • Loading pressure bleeds downstream - no atmospheric relief Operations • Double diaphragm pilot providing quick response and high accuracy requires less droop than a direct operated regulator to obtain the same pressure difference. • Pilots assemblies can be exchanged in the field from high to low pressure. • Seat selections include an elastomer seat disk against a sharp edge orifice or an elastomer O-ring against a flat orifice. • The O-ring against a flat orifice should be used in all applications with 250 psi and above inlet pressure and when heavy main springs are used. P99 Maximum Inlet, Pressure Drop and Differential Pressures Note: When choosing an O-ring seat and flat orifice, only the 7/8” and 1-1/8” orifi

Output Pressure Ranges 3 - 12” WC (LD) .25 - 2 PSIG (L) .25 - 2 PSIG (LD) .25 - 2 PSIG (LE) 5 PSIG (L) 5 PSIG (LD) 5 PSIG (LE) 10 PSIG (L) 10 PSIG (LD) 10 PSIG (LE) 15 PSIG (L) 15 PSIG (LD) 15 PSIG (LE) - 20 PSIG (L) - 20 PSIG (LD) - 20 PSIG (LE) - 65 PSIG (H) - 100 PSIG (HP) Special Construction 2" NPT - IRON 2" NPT - STEEL 150 RF - STEEL 300 RF - STEEL Versions Standard Monitor Versions Standard w/P39 installed Monitor w/P39 installed Required on Pilot Pressure > 150 PSIG P99 Regulator Rebuild Kits Kit Includes: Nitrile seat disk assembly, Diaphragm, Pusher post gasket, Body gasket, Orifice,...

P99 Outlet Pressure Ranges

Capacities in Thousands of SCFH / Nm3/h of 0.6 Specific Gravity Natural Gas121 Outlet Pressure, PSIG (BAR) 1. When sizing a regulator, always use the lowest inlet pressure, the highest outlet pressure, and the maximum capacity desired. 2. Requires 0.75 PSIG / 0.05 bar minimum differential pressure construction. - Shaded areas indicate no capacity due to differential pressure requirement.

P99 Capacities of Type 99 Regulators (Full Capacity) Orifice Size Inches mm PSIG BAR SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

P99 HP Pilot with P39 & Relief Valve 6.913

DOWNSTREAM REGULATOR UPSTREAM REGULATOR (REQUIRES O-RING STEM SEAL) MONITOR REGULATOR MAY BE PLACED EITHER UPSTREAM OR DOWNSTREAM. REQUIRES ADDITIONAL PIPING P99 WIDE-OPEN MONITOR INSTALLATIONS Monitoring Systems A monitor unit can serve as overpressure protection in the case of a wide-open failure of the main regulator. A P99 that is configured as a monitor regulator has a modified lower casing that includes an O-ring seal around the valve carrier. The system should be set up as seen above with the O-ring seal unit upstream. The control line of the upstream regulator must be installed downstream...

P99 Regulator with L Series Pilot Parts List Disk Seat H P99 Monitor Housing and SERIES PILOT O-ring Seat P61 SERIES BLEED VALVE ASSEMBLY O-ring Seat

P61 SERIES BLEED VALVE ASSEMBLY Q - PARTS INCLUDED IN REPAIR KITS 971-P99-XXX

P99 HP Specific Pilot Parts Item