Technical Data R

Transcription

1 Technical Data R

2 Technical Data Introduction The Series 226 is a range of Low Pressure, Direct Acting, diaphragm operated, spring loaded regulators. Service Conditions Size Model Max. Inlet Outlet Pressure Pressure Range Use with confidence on natural and manufactured gases of nonaggressive nature, including Nitrogen, Carbon Dioxide, Propane, and Butane etc. 3\4 & , 1 1 2, & Mk3 mbarg mbarg 3.7 to 7 mbarg 3.7 to 80 mbarg DN0 mbarg 3.7 to 80 mbarg Application Designed primarily for control of fuel gas feeds to industrial burners, heater units, boilers and other items of equipment where an accurate, safe and reliable controlled pressure supply is required. 3 /DN80 DN DN 226H Mk2 mbarg mbarg mbarg mbarg 3.7 to 80 mbarg 70 to mbarg 7. to mbarg 12. to mbarg Temperature Range: 20 O C to +60 O C Features Quick Response to Rapid Load Changes Installation at any angle Wide Operational Pressure Range Approvals to: DVGW GASTEC Complies generally with specification BG/PRS 33 Options Available with or without Inlet & Outlet Pressure Test Points (sizes and above) Internally or Externally Impulsed (sizes and above) Angle Type (1 1 4, 1 1 2, 2 screwed/80mm Flanged) Safety Diaphragm (sizes and above) Fitting of Lead Wire Seal Size Range Screwed Flanged 20mm (3\4 ) 2mm (1 ) 32mm (1.1\4 ) 40mm (1.1\2 ) 0mm (2 ) 0mm 80mm (3 ) 80mm mm mm Installation Any orientation, but moisture or debris must not ingress the vent hole. BS21 Rc, RP BS404 PN16* * Can be drilled to other standards on request. 1

3 Spring Selection Outlet Pressure Range (in mbarg) Spring Colour 20 & 2mm Sc 32 & 40mm Sc SPRING NUMBER 0mm Sc 0mm FL 80mm Sc/FL mm FL mm FL 3.7 to 7. Red to 10 White to 1 Blue White/Gold to 14 Red to 2 Green Self to 2 Black/Gold 410 Lt. Blue/Dk. Green to 3 Blue Green to 37 Yellow/Gold 412 Lt. Green/Red to 60 Green to Yellow to 60 Black Lt. Green/Brown to 7 Yellow 80 3 to 80 Yellow Brown/Gold to 80 Black to 80 Grey 98 to 112 Lt. Green/Grey to 112 Brown 774* 70 to Grey/Maroon 407 to Orange Self 77* 617 *Applicable to 80mm Series 226H only, connections: Sc=Screwed, FL=Flanged. Spring Data based on Spring Housing vertically upwards. 2

4 Capacities Set Point: 12. mbarg 20mm 226 MK2 Sc 2mm 226 MK2 Sc 0mm 226 MK3 Sc mm 226 MK2 FL Set Point: 20 mbarg 20mm 226 MK2 Sc 2mm 226 MK2 Sc 0mm 226 MK3 Sc mm 226 MK2 FL Set Point: 30 mbarg 20mm 226 MK2 Sc 2mm 226 MK2 Sc 0mm 226 MK3 Sc mm 226 MK2 FL

5 Set Point: 4 mbarg 0mm 226 MK3 Sc mm 226 MK2 FL Set Point: 0 mbarg 0mm 226 MK3 Sc mm 226 MK2 FL Set Point: 60 mbarg 0mm 226 MK3 Sc mm 226 MK2 FL

6 Set Point: 70 mbarg 0mm 226 MK3 Sc mm 226 MK2 FL Set Point: & mbarg mbarg mbarg 80mm 226H MK2 FL mm 226 MK2 FL Correction Factors The capacities given in the above tables are calculated in terms of natural gas of SG 0.6. To find the equivalent capacities of other gases, multiply the figures given by the appropriate correction factor listed below. Type of Gas Specific Gravity Correction Factor Air Propane Propane/Air (1 BthU) Butane Nitrogen For all other Gases, multiply by the following correction factor: 0.6 SG of Gas handled

7 Materials of Construction Regulator Size 20 & 2mm Screwed 32, 40 & 0mm Screwed 0mm Flanged 80mm Screwed/Flanged & mm Flanged 226 Mk3 Body BS 1490 LM2 Cast Iron: BS 142 GR.220 Diaphragm Casing BS 1490 LM2 BS 1490 LM2 Top Cap BS TD Zinc Die Cast: BS 4A BS 1490 LM2 Bottom Plug/ Cover BS TD BS 1490 LM2 Cast Iron: BS 142 GR.220 Main Diaphragm Reinforced Reinforced Balancing Diaphragm Reinforced Reinforced Main Diaphragm Plates : BS 40 GR 43A Zinc Plated BS1706 Plated Mild Steel Mild Steel bonded into Diaphragm Plated Mild Steel Plated Mild Steel Spindle Mild Steel, Zinc Plated Mild Steel with Protective Coating Mild Steel with Protective Coating Mild Steel with Protective Coating Valve Seat Spring Spring Adjuster Acetal Hostaform: C32021 Acetal Copolymer Cast Iron: BS 142 GR.220 Distance Piece Acetal Hostaform: C32021 Acetal Copolymer ABS ABS Impulse Tube Acetal Hostaform: C32021 Acetal Copolymer O Rings Breather Valve Vent Cap 6

8 Dimensions & Weights SIZE Type A B C D E F Wt. Kg s 20mm SC mm SC mm SC 226 Mk mm SC 226 Mk mm SC 226 Mk mm FL mm SC/FL mm FL mm FL All Dimensions in mm 7

9 Other Products in the Series 226 Range Relief Valves: Series 226R & 226HR Size Model Max. Inlet Pressure Relief Pressure Range 3\4 & 1 226R Mk3 mbarg 10 to 120 mbarg 11/4, 11/2, & 2 226R Mk3 226HR Mk3 mbarg 00 mbarg 10 to 120 mbarg 2 to mbarg DN0 226R Mk2 226HR Mk2 mbarg 00 mbarg 10 to 120 mbarg 10 to mbarg 3 /DN80 226R Mk2 226HR Mk2 mbarg 00 mbarg 10 to 70 mbarg 10 to 21 mbarg Pilots: Series 226K & 226HK Size Model Max. Inlet Pressure Outlet Pressure Range 3\4 & 1 226K 226HK 226MK 0 mbarg 0 mbarg mbarg 7. to 120 mbarg 110 to mbarg 7. to 37 mbarg Profiling Pilot: Size Model Max. Inlet Pressure Outlet Pressure Range 3\4 & 1 226DPP mbarg 17 to mbarg Zero Governors Series 226Z & 226ZBL Available in sizes: to 3 screwed and 0mm to mm Flanged 8

10 Enterprise Drive, Holmewood, Chesterfield, England. S42 UZ UK Tel: (01246) 01 UK Fax: (01246) 00 Int Tel: Int Fax: website: A Member of the Group The Bryan Donkin RMG Gas Controls policy is one of continuous improvement and development. The company reserves the right to change and introduce improved designs without notice.