lockshield

Hi, I'm new to the forum and would appreciate a bit of advice: I have just fitted a magna clean, flushed all the sludge out of the rads and put inhibitor in the system. I've got a combi with 10 rads. I'm going to balance the system properly using digital thermometers but just to get things up...

First time posting so thank you for any help in advance. I can't seem to open what I believe is a Lockshield valve, turning anti-clockwise and will not budge. I'm trying to turn the spindle in the centre. Never had a radiator before and not entirely sure that is the issue is there something...

Hi all, I have a radiator that I would like to put a lockshield with a drain down on it as it is the end of a line rad. Issue is that I need a straight through lockshield because of the routing of the pipes. Can you get a straight through lockshield with a drain down, or as another option can...

Hi All Im a good DIYer not a plumber. Im workng on a closed heating system. Im replacing all valves on Rads. New Pegler lockshield valves and Drayton TRV4. To scope it out tonght tonight I started on the downstairs hall rad to see how this would work. I closed off both existing rad valves...

Hi guys, I have spent days getting prepared to remove a radiator. Have watched youtube vids, got a list of step-by-step instructions, some really good information from this forum and am all ready to go... and I have fallen at first hurdle!!! Everyone says the lockshield cap just pulls off. This...

I nearly avoided completely unexpected disaster when opening the lockshield valve fully open as somehow the safety ring (as shown in pictures) came off due to which the small screw inside lockshield few away and water fountain came out. I haven't applied too much pressure to open the lockshield...

Does anyone make a lockshield valve key (like a bleed valve key)? I'm sick of using an adjustable - a proper key would be much better.

Hi all, On my radiators which don't have TRV's, on one valve is a plastic cap which can be turned which i assume to be the control/flow valve and the other valve has no cap, just a square head that could be turned with pliers. When balancing you alter the lockshield valve, how should the...

Hi All I got open vent system with 2 zone valve. I am not able to put CH and DHW on same time cos there is no lockshield valve on Cylinder's flow and return. Everytime put both of them on DHW pipe steals all heating. After DHW zone valve 22mm pipe goes to cylinder and returns to main return...

How To Balance Radiators Tool List: Radiator-bleeding key Lockshield valve adjuster or adjustable spanner Screwdriver Digital thermometer or multimeter with thermometer function 1. Make sure all the radiators have been bled. Turn off the central heating and allow the radiators...

i have replaced a rad and when ive fitted new one , the lock shield at both sides ( its a bathroom rad , so doesnt have a trv ) are leaking via the spindle . if i try to pack them using ptfe tape , do i need to make sure there is no pressure in the system ? i have a combi boiler and pressure is...

Sorry if this has been covered before. I live in a dormer bungalow. I'm replacing all of the down stairs radiators with vertical radiators. The flow and return pipes are dropping down in 15mm from the upper room where there is a loop of flow and return in 22mm. On all of the downstairs...

Hi guya had a job yesterday that could't be completed. 2 lockshields needed changing, it's small pipe. I had 2 10mm lockshields on and these were too big. Can't seem to find smaller, anyone know where i might get some?

Hi, I am having Drayton TRV4 corner angle valves fitted on my rads. Drayton don't make corner angle lockshields so I would be grateful if you could recommend a good quality supplier that does. Drayton have said that lockshields are not completely necessary. Are they saying I don't need to have...

I have just had a new combi boiler (Worcester 36 CDi Compact) fitted as a replacement for my trusty Worcester 350 Combi. The system was powerflushed as well (with a Magnacleanse filter on the machine, though it didn't take as long as I'd have expected: about 3 hours for a 13-rad system). A...

Hi, I am replacing the radiators in my house, and unfortunately the manual rad valves I've picked don't come with a lockshield cap so the balance could be altered accidentally, or by children. I spoke with my local plumbing supplier who informs me that people either install them that way or...

Hi, Was wondering if anybody had any tips on how to open/close the lockshield valve on a radiator? I have one valve that did not budge when I attempted to move it with a set of pliers. Is more force required (adjustable spanner?). I was hesitant at putting too much force on the valve in case...

Hi. The problem I have is the bathroom getting too hot. I have a Potterton Suprima 40L boiler. I've found the Installation guide online which says that there must be a by-pass which allows 2gal/min. My bathroom radiator is the only one without a thermostat. My question is, should the valves...

hi all went to a house tonight to put some radiators on and fill up i replaced the stat side to the radiators a week ago as were directional and my work mate swapped the flow and returns over to new boiler but when i tried to fill up 3 out of 8 radiators wont fill the stat side will but not the...

Hi, I have some radiators with old style valves and I think they need rebalancing as they arnt warming up whilst the radiators nearest to the boiler are really hot I'm having difficulty identify which is the lockshield valve and which is the wheelhead valve. When I take the caps of both valves...