Related Manuals for Pressure Tech MF-414 Series
Summary of Contents for Pressure Tech MF-414 Series
- Page 1 THE MF-414 SERIES Operating and Service Manual Series includes all variants of MF-414 Issue C Dec 2018...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. Description ..........................3 2. Installation ..........................3 3. Operation ..........................4 4. Special Conditions for Safe Use ..................... 5 5. Hazardous Location Usage ..................... 5 6. Servicing and Maintenance ....................5 6.1. Servicing the MF-414G.................... 6 6.1.1. -
Page 3: Description
1. Description The MF-414 is a ‘medium flow’ piston sensed pressure reducing regulator, which incorporates a balanced main valve to provide stable control under varying inlet pressures. The regulator has the option of a PEEK seat for gas service, or TX 2000 ceramic for hydraulic service. Both designs have a segregated captured vent to allow pressure reduction of the outlet pressure through a ¼”... -
Page 4: Operation
Pressure should be reduced in this case by venting downstream of the regulator, and turning the hand wheel simultaneously anti-clockwise. The MF-414 series may be offered with pressure limiting, pressure locking or pre-set pressure options: Pressure limited regulators are fitted with locknuts on the adjusting mechanism in order to limit the maximum allowable downstream pressure. -
Page 5: Special Conditions For Safe Use
Safety concerns relating to handling of technical gases. Any uncertainty should be clarified with Pressure Tech before working on the regulator. Pressure Tech Ltd recommends the use of Krytox GPL 205 during servicing. Prior to commencing service, please ensure that:... -
Page 6: Servicing The Mf-414G
6.1. Servicing the MF-414G *Note: fig 1 should be used as a reference for the following set of instructions 6.1.1. Accessing the Main Valve Assembly *The top works and sensor assembly must first be removed to access the main valve assembly. -
Page 7: Accessing The Sensor Assembly
6.1.2. Accessing the Sensor Assembly The loading mechanism and vent seat for the MF-414 can be accessed from the top of the regulator. Ensure the spring is de-compressed by rotating the hand wheel fully anti-clockwise and follow the instructions below: Remove the securing grub screw (23) from the regulator body (1). - Page 8 O' RING STD FIT-M3X5 GRUB SCREW R40X89 SPRING SPRING PT-C-045 ADJUSTING NUT PT-C-046 SCREW BEAR-51103 BEARING PT-C-043-004 ADJUSTING SCREW Ø74 PT-C-040-001 BONNET PT-C-048-001 LARGE NYLON HAND WHEEL PT-C-132 LOCK NUT PT-C-049 NAME PLATE FIT-M3X8 SCREW © Copyright of Pressure Tech Ltd...
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Page 9: Servicing The Mf-414H
6.2. Servicing the MF-414H *Note: fig 2 should be used as a reference for the following set of instructions 6.2.1. Accessing the Main Valve Assembly *The top works and sensor assembly must first be removed to access the main valve assembly. -
Page 10: Accessing The Sensor Assembly
6.2.2. Accessing the Sensor Assembly The loading mechanism and vent seat for the MF-414 can be accessed from the top of the regulator. Ensure the spring is de-compressed by rotating the hand wheel fully anti-clockwise and follow the instructions below: Remove the T-Bar (30, 31) by unscrewing one side whilst firmly gripping the other. - Page 11 O' RING STD FIT-M3X5 GRUB SCREW R40X89 SPRING 517 KG SPRING PT-C-045 ADJUSTING NUT PT-C-046 SCREW 51103-SS BEARING 420SS ◼ 74 PT-C-043-001 ADJUSTING SCREW PT-C-040-001 BONNET PT-C-107 T BAR HANDLE PT-C-108 T BAR HANDLE © Copyright of Pressure Tech Ltd...
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Page 12: Technical Data
Gas: Bubble tight 8. Warranty Statement Pressure Tech Ltd guarantee all products correspond with their specification at the time of delivery and, with exception to wear and tear, wilful damage, negligence, and abnormal working conditions, will be free from defects for a period of 12 months from date of delivery.