Pilot HON 630a, HON 640

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1 product information serving the gas industry worldwide

2 pplication, characteristics, technical data pplication pilot for gas pressure regulators HON 0, HON 0, HON 0, HON 0 suitable for natural gas and all non-corrosive gaseous media Characteristics one-stage or two-stage pilot composed of interchangeable cartridge assemblies the two-stage version ensures a high regulating accuracy even under high inlet pressure changes equipped with inlet pressure (load limiting pressure) gauges, with or without outlet pressure gauge as an optional feature, and fine filter HON 90 can be provided with electric remote setpoint adjustment as an optional feature technical data max. inlet pressure p umax HON 60a HON bar two-stage version for high regulating accuracy adjustment range (see page no. ) one-stage version application at inlet pressure changes: p u bar adjustment range (see page no. ) weights materials Pilot HON 60a HON 60 body internal parts diaphragms sealings adjustment range W h up to bar 0 bar 90 bar 6.0 kg.0 kg aluminium alloy aluminium alloy/steel rubber-like plastic material (NBR) rubber-like plastic material (NBR).0 kg. kg 6. kg. kg accuracy class (C) and lock-up pressure class (SG) HON 60a C. SG 0 HON 60 C SG 0 lock-up pressure zone class (SZ) SZ. temperature range -0 C C (class ) function and strength according to N DIN-DVGW registration the pilots are components of the regulators C/PD approved

3 pplication, characteristics, technical data adjustment ranges Pilot HON 60a adjustment range W a control stage setpoint spring No.: colour wire-dia. in mm special feature bar black. larger measuring diaphragm bar yellow.6 control stage with diaphragm assembly bar brown 6. control stage with diaphragm assembly bar red 7.0 control stage with diaphragm assembly bar green 8.0 control stage with diaphragm assembly bar 6 white 9.0 control stage with metal harmonica type measuring unit load limiting stage... bar green.0 automatically > p a pilot HON 60 (one stage version, for inlet pressure Δp bar) adjustment range W a control stage setpoint spring No.: colour wire-dia. in mm special feature bar black. larger measuring diaphragm bar yellow.6 control stage with diaphragm assembly bar brown 6. control stage with diaphragm assembly bar red 7.0 control stage with diaphragm assembly bar green 8.0 control stage with diaphragm assembly bar 6 white 9.0 control stage with metal harmonica type measuring unit accuracy class ac and lock-up pressure class sg adjustment range accuracy class C lock-up pressure class SG HON 60a bar C 0 SG 0 >... bar C 0 SG 0 >... bar C SG 0 > bar C, SG 0 HON bar C 0 SG 0 >... bar C 0 SG 0 > bar C SG 0

4 Design and operation The gas pressure regulator is designed to keep the outlet pressure constant within given limits, independent of disturbing influences like inlet pressure and flow rate changes. This regulating operation is controlled by the pilot which feeds loading pressure to the main diaphragm to change its opening position for a regulation of the gas flow within the main valve. The amplifying valve in the double diaphragm system of the control unit is closed at zero flow. Due to the function of the throttling valve upstream of the pilot ensuring pressure compensation, inlet pressure will prevail in the loading pressure chamber above the main diaphragm. The closing spring gives the force to ensure tight shut-off on zero flow. The valve in the control unit of the pilot reduces the loading pressure to open the regulator (when the two-stage pilot HON 60a is used, an initial decrease of the load limiting pressure is followed by a reduction of the loading pressure within the loading pressure chamber). The inlet pressure prevailling at the lower side of the main diaphragm moves the diaphragm upwards to set free as much of the slotted valve part as is necessary for outlet pressure control. start-up valve load limiting pressure pilot HON 60 measuring impulse line inlet pressure throttling valve load limiting stage control stage filter HON 90 inlet pressure line amplifying valve vent line bleed line loading pressure line closing spring loading pressure chamber main control diaphragm expansion piece main valve body inlet pressure outlet pressure inlet pressure outlet pressure load limiting pressure loading pressure atmosphere main valve

5 Dimensions and connections HON 60a adjustment range W a = (0.... ) bar connection for measuring line: M H O I without pressure gauge p a N with pressure gauge p a B C D F G HON 60a adjustment range W a = (... 90) bar connection for measuring line: without pressure gauge p a W h = ( ) bar with pressure gauge p a W h = (...0) bar W a = ( ) bar W a = ( ) bar M I H K L K L B C D J J G F

6 Dimensions and connections HON 60 adjustment range W a = (... 90) bar connection for measuring line: without pressure gauge p a W h = ( ) bar with pressure gauge p a W h = (...0) bar W a = ( ) bar W a = ( ) bar 6 B H I C D F G dimensions in mm Pilot adjusting range B C D F G H I J K L M N O HON 60a W a = (0...) bar HON 60a W h = (...0) bar HON 60a W a = ( ) bar HON 60 W h = (...0) bar HON 60 W a = ( ) bar connections measuring line at outlet pressure line, thread M x. bleed line at main valve or outlet pressure line, thread M x. vent line to the open air, thread M x. inlet pressure line at inlet pressure line 0, thread M x. loading pressure line at main valve 0, thread M x.

7 Type description example: HON 60a - - So pilot 7 pilot HON 60a HON 60 setpoint spring of pilot control stage setpoint spring No. 6 special version setting range W h in bar special version (is to be specified in detail) So

8 For More Information To learn more about Honeywell s dvanced Gas Solutions, visit or contact your Honeywell account manager GRMNY Honeywell Process Solutions Honeywell Gas Technologies GmbH Osterholzstrasse Kassel, Deutschland Tel: +9 (0) Fax: +9 (0) HON 60a.00 / HON Honeywell International Inc.