Capacity Charts for Gas Pressure Regulators

1 BULLETIN MI2051-02/06 Capacity Charts for GasPressure RegulatorsThe Capacity of any regulator is not an absolute value, but will vary with the applicationdepending on the prevailing differential. We hope the following Charts will help you inyour selection of a properly sized gas appliances Regulators should be installed and operated inaccordance with our Safety Warning Bulletin no untrained person should attempt toinstall, maintain, or service a gas Pressure MODELS capacities expressed in Btu/h. sp gr gasMaxitrol recommended maximum inlet 1/2 psiModelPipe SizePressure Drop@ of RegulationMain and PilotIndividual LoadBall CheckDevicesFixed OrificesRV121/8 x 1/8 3/16 x 3/16 14,8008,80030,00025,00015,00020,00015,00 0 RV201/4 x 1/4 3/8 x 3/8 30,00065,00050,00030,000 RV20C1/4 X 1/4 3/8 X 3/8 30,00075,00050,00015,000 CV47RV473/8 X 3/8 1/2 X 1/2 55,00060,000125,00090,00040,000125,000CV 47A & CRV47A & C3/8 X 3/8 1/2 x 1/2 55,00060,000125,000125,00040,000125,000R V481/2 X 1/2 3/4 X 3/4 130,000150,000230,000250,000230.

2 000250,00040,000160,000RV48C1/2 x 1/2 3/4 x 3/4 130,000150,000400,000275,000 Nat250,000 LP40,000160,000 NOTE: Minimum main burner regulation Capacity for all models (except N ) is 150 Btu/hSTRAIGHT-THRU-FLOW capacities expressed in CFH sp gr gasMaxitrol recommended maximum inlet Pressure : RV52 & psiRV61, 81, 91 & 1 2 psiModel Number and x 1/23/4 x 3/44504501511512142142622623023023383383 7037040040042742745345347847867667682882 8956956RV533/4 x 3/41 x 1710710217217306306375375433433484484530 5305735736126126506506846849689681185118 513691369RV611 x 11-1/4 x 1-1/411001100379379536536675675759759848 8489299291004100410731073113811381200120 0174217422134213424642464RV811-1/4 x 1-1/41-1/2 x 1-1/225002500780780110211021350135015591 5591743174319091909206220622204220423392 33924652465348534854269426949294929RV912 x 22-1/2 x

3 2-1/232753275121212121714171421002100242 4242427112711296929693208320834293429363 7363738343834542254226640664076687668RV1 112-1/2 x 2-1/23 x 3750075002742274238783878475047505485548 5613261326718671872567256775777578227822 785728572121341213414862148621716117161R V1314 x 4 47346695 82009468 10586 11596 12525 13390 14202 14971 211722593029942 Pressure Drop (inches )325 SERIES capacities expressed in CFH sp gr gas325 Appliance RegulatorsMaximum inlet psi (2 or 5 psi CSA)Model Number and PipeSize (Inlet & Outlet) 1/2 psi 3/4 psi1 psiPressure Drop325-3325-5A3039559512314620525128768 881252172803314655706583/8 , 1/2 1/2 , 3/4 , 1 CSA Load325-7325 2 psi Line RegulatorsMaximum inlet psi (CSA)325-3L325 5 psi Line RegulatorsMaximum inlet psi (CSA)Model Number and PipeSize (Inlet & Outlet)

4 CSA LoadPressure 1/2 psi3/4 psi1 psi psi2604505816909721191137516851820150100 3002509001000-1421843558063838703/8 , 1/2 1/2 1-1/4 , 1-1/2 2504255501000140300900551252609521745012 3280581146331690205465972-----3001252172 803311-1/4 1-1/2 --------------: Non-CSA Certified3/4 , 1 325-5AL325-7L325-5AL48325-5AL600325-7L21 0D325-3L48325-3L47 Model Number and PipeSize (Inlet & Outlet)CSA Load3/8 , 1/2 1/2 1/2 3/4 3/4 1 1-1/4 1-1/2 Pressure Drop-------------------------1/2 psi3/4 psi1 psi-----------CAUTION: Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.

5 Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall, make system adjustments and per-form any required : Maxitrol practices a policyof continuous improvement in the de-sign of its products. It reserves theright to change the specifcations atany time without prior THERMAL PRODUCTS LTDC ombustion Equipment & Controls for Industry 21 Amber St # 9, Markham Ontario Canada L3R 4Z3 Tel: (905) 475-9292 Fax: (905) 475-3286 210 SERIES capacities expressed in CFH sp gr gasMaxitrol recommended maximum inlet psiModel Number andPipe Size210D210E210G210J1 x 11-1/4 x 1-1/41-1/2 x 1-1/21-1/2 x 1-1/22 x 22-1/2 x 2-1/23 x 34 x 4 psi3/4 psi1 psi

6 1350156031603475900110012001915221044704 9208600160019002100331538257740852015000 2000250027004280494099951100019000240029 0032005065584511825130202300033004100450 0712582251663518310320004100500055008725 1007020375224254000047505850635010075116 3023525258904550058007150775012340142452 88103171055700R/RS SERIES capacities expressed in CFH recommended maximum inlet Pressure :R psiRS 5 psiModel Number andPipe SizeR400 &R400SR500 &R500SR600 &R600S3/8 x 3/81/2 x 1/21/2 x 1/23/4 x 3/43/4 x 3/41 x 1 Pressure Drop (inches ) Pressure Drop (inches ) 63576011501280 68582012451380 730876133514806000 CAUTION: Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.

7 Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall, make system adjustments and per-form any required : Maxitrol practices a policyof continuous improvement in the de-sign of its products. It reserves theright to change the specifcations atany time without prior THERMAL PRODUCTS LTDC ombustion Equipment & Controls for Industry 21 Amber St # 9, Markham Ontario Canada L3R 4Z3 Tel: (905) 475-9292 Fax: (905) 475-3286