Derry Traditional - Black Nickel Thermostatic Radiator Valve & Lockshield Corner 15mm
Product code: 49997
Smarter room comfort from a thermostatic valve set
Give this radiator its own level of thermostatic control with the Derry Traditional Black Nickel TRV and lockshield set. The corner 15mm connection is designed for the appropriate pipe route, while the wax sensor works with the valve to reduce hot-water flow when the room no longer needs as much heat.
Why choose these radiator valves?
- Manage radiator warmth around how the room is used: The valve automatically alters hot-water flow through the individual radiator in response to the room temperature and selected setting.
- Use less unnecessary heat in rooms that are already warm: Restricting flow when less heat is needed can help prevent an already-comfortable room from continuing to receive unnecessary radiator heat.
- Give the heating system extra protection from freezing conditions: A frost-protection setting helps reduce freezing risk by allowing some hot-water flow when the room temperature drops to a very low level.
- Simplify the purchase with both valves supplied: The set includes the TRV and matching lockshield together, giving you both radiator valves in one coordinated purchase.
- Choose a valve body that suits your pipe route: For pipework coming straight from the wall to a side-entry radiator, this corner layout keeps the connection compact.
- Adjust the radiator to suit how you use the room: Multi-temperature control provides a choice of thermostatic settings rather than limiting the radiator to fully open or fully closed.
- Let the thermostatic mechanism respond without constant adjustment: A wax sensing element reacts to room-temperature changes and adjusts the valve mechanism without constant manual input.
- Choose a finish that complements the installation: The classic valve profile adds a decorative finishing touch that works naturally with traditional radiator styles. Its polished & lacquered Black Nickel surface lets the valves become part of the radiator's overall finish rather than an afterthought.
- Choose with added confidence beyond installation: The included 3 years guarantee adds confidence when choosing a valve set for ongoing everyday use.
What's included
- Thermostatic radiator valve head with body
- Matching lockshield valve
- Decorator's cap
Key technical details
- Connection Size Type: 1/2 BSP
- Fitting Type: Corner
- Connection: 15mm
- Control Type: Multi Temperature Control
Need help calculating the heat output for your room?
Guarantee Length: 3 Years
Collection: Derry Traditional
Supplied with: TRV Valve, Lockshield and Fitting Instructions Included
Colour: Black Nickel
Finish: Polished & Lacquered
Heat Source: Central Heated/Hot Water
Material: Brass
Style: Traditional
Product Assurances: CE Marked,3 Years
Fitting Type: Corner
Sensor Type: Wax
SKU DER-TRV-TRCD-WGH-BNC
GTIN:5056675405263
Dry Mass (kg):0.893kg
Height: 121mm
Width:86mm
Control Type: Multi Temperature Control
- Free delivery options (UK Mainland, Northern Ireland/Highlands/Islands)
- Next working day delivery options (selected products & locations)
- We deliver between 8am and 6pm
- Contact us to delay delivery/request a specific day
- Limitless (that's right, no time limit!) returns on eligible items.
- Free of charge: either we will arrange collection/send a returns label, or we’ll refund your reasonable return postage costs.
- Returns for reasons other than damage or faults can only be accepted if the item is unused, unfitted, and returned in its original packaging and resaleable condition.
- Please note that made-to-order, personalised, or bespoke items manufactured to your specification are exempt from the standard cancellation rights under the Consumer Contracts Regulations and cannot be returned unless faulty or damaged.
- Whilst all our products pass strict quality standards, on very rare occasions an item may arrive damaged. We ask that you inspect the packaging before signing for delivery and note any visible damage when signing, or refuse the delivery and state damage as the reason.
- If you discover damage after accepting delivery, please contact us as soon as possible with photographs of the damage and packaging.
- Once damage or a fault has been confirmed, we will either replace the item completely free of charge or provide a full refund, including any applicable delivery charges.
-
How can I contact you?
You can message us on live chat. We aim to reply in one minute, between 9am - 5:30pm. After 5:30pm, we'll create a ticket and get back to you asap.
-
Where do you deliver?
We deliver to the whole of the UK and Northern Ireland - including the highlands and islands.
We are currently unable to offer international delivery. However, you can place an order for collection and arrange to have a courier of your choice collect the order and delivery it to you.
-
Who will deliver my order?
Our two primary couriers for UK Radiators products are Royal Mail and DX Express. Your courier will depend on the size and weight of the items on your order.
For example a pair of valves will be sent to you with Royal Mail, whereas a Column radiator will be sent with DX.
Tracking is provided for all orders dispatched from our warehouse.
If you order a Terma product, your item(s) will be coming directly from their warehouse.
The couriers they use are Stop Start and Parcelforce, and tracking is provided where possible.
-
Can I choose a specific time or day for my delivery?
If, for any reason, you would like to delay your delivery, please contact one of the customer service team as soon as you have placed your order, who will be able to assist you.
We are currently unable to request specific delivery time slots with our couriers.
Some of our couriers will advise you of a smaller time slot for your delivery, but unless otherwise stated, deliveries can take place any time between 7am and 7pm.
-
Can I upgrade my delivery?
We offer the option to upgrade delivery to either Two Man VIP delivery to a room of your choice, or Next Working Day delivery. Upgrade availability is dependant on the size of product and delivery location. Once dispatched, your order is sent on the delivery service chosen at checkout. This cannot be changed after dispatch.
-
Can I send orders to a different address?
You can change the shipping address to a different address if your billing address matches what's registered against your payment method.
However, this can only be done when placing the order.
We are unable to change the delivery address after the order has been placed and dispatched. In this instance, the order would need to be cancelled and refunded, and a new order placed with the correct delivery address.
Derry Traditional - Black Nickel Thermostatic Radiator Valve & Lockshield Corner 15mm
Product code: 49997
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Derry Traditional - Black Nickel Thermostatic Radiator Valve & Lockshield Corner 15mm
The Alpha White Column Radiator (H500mm × W768mm) offers the perfect mix of classic elegance and dependable performance.
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Watts & BTUs (British Thermal Units) Explained
What is a Watt?
Watts are our main unit of energy/power in the UK, commonly associated with lightbulbs and Home Energy performance certificates (EPCs).
What is a BTU?
BTUs are the unit of measurement used to portray a radiators heat output and a rooms heating requirement. 1 Watt is equal to 3.41 BTUs.
Why are they important?
We buy radiators to heat our homes, right? So, we need a way of knowing if a radiator is powerful enough to heat the room that we are shopping for - Watts and BTUs provide us with a value that makes its easier to compare radiators and ultimately choose the right one for our heating requirement.
Need help figuring out how much heat your room needs?
Our fast and easy-to-use BTU calculator can help you:
- Work out a heating requirement value (in BTUs & Watts) for your room
- Show you in-stock radiator recommendations that can fulfil this heat requirement
Delta (Δ) Ratings Explained
What is a Delta (Δ) Rating?
When discussing heat outputs, the Delta rating is the difference between the temperature of the water inside the heating system and the desired temperature of the room.
What does the value represent?
In simple terms, this value is about heat loss. Heating a room only works, if the radiator output exceeds the heat loss of the room.
We use this calculation to make it easy to choose a radiator that will have a heat output that exceeds the heat loss of the room when connected to your heating system type.
If you don't know the room heat loss, you can use our calculator to find out.
What Delta Rating should I use?
- Δ50 = Gas or oil boiler with a flow temperature of around 75°C and a return temperature of around 65°C.
- Δ30 = Low temperature systems e.g heat pumps.
Smarter room comfort from a thermostatic valve set
Give this radiator its own level of thermostatic control with the Derry Traditional Black Nickel TRV and lockshield set. The corner 15mm connection is designed for the appropriate pipe route, while the wax sensor works with the valve to reduce hot-water flow when the room no longer needs as much heat.
Why choose these radiator valves?
- Manage radiator warmth around how the room is used: The valve automatically alters hot-water flow through the individual radiator in response to the room temperature and selected setting.
- Use less unnecessary heat in rooms that are already warm: Restricting flow when less heat is needed can help prevent an already-comfortable room from continuing to receive unnecessary radiator heat.
- Give the heating system extra protection from freezing conditions: A frost-protection setting helps reduce freezing risk by allowing some hot-water flow when the room temperature drops to a very low level.
- Simplify the purchase with both valves supplied: The set includes the TRV and matching lockshield together, giving you both radiator valves in one coordinated purchase.
- Choose a valve body that suits your pipe route: For pipework coming straight from the wall to a side-entry radiator, this corner layout keeps the connection compact.
- Adjust the radiator to suit how you use the room: Multi-temperature control provides a choice of thermostatic settings rather than limiting the radiator to fully open or fully closed.
- Let the thermostatic mechanism respond without constant adjustment: A wax sensing element reacts to room-temperature changes and adjusts the valve mechanism without constant manual input.
- Choose a finish that complements the installation: The classic valve profile adds a decorative finishing touch that works naturally with traditional radiator styles. Its polished & lacquered Black Nickel surface lets the valves become part of the radiator's overall finish rather than an afterthought.
- Choose with added confidence beyond installation: The included 3 years guarantee adds confidence when choosing a valve set for ongoing everyday use.
What's included
- Thermostatic radiator valve head with body
- Matching lockshield valve
- Decorator's cap
Key technical details
- Connection Size Type: 1/2 BSP
- Fitting Type: Corner
- Connection: 15mm
- Control Type: Multi Temperature Control
Need help calculating the heat output for your room?
Guarantee Length: 3 Years
Collection: Derry Traditional
Supplied with: TRV Valve, Lockshield and Fitting Instructions Included
Colour: Black Nickel
Finish: Polished & Lacquered
Heat Source: Central Heated/Hot Water
Material: Brass
Style: Traditional
Product Assurances: CE Marked,3 Years
Fitting Type: Corner
Sensor Type: Wax
SKU DER-TRV-TRCD-WGH-BNC
GTIN:5056675405263
Dry Mass (kg):0.893kg
Height: 121mm
Width:86mm
Control Type: Multi Temperature Control
- Free delivery options (UK Mainland, Northern Ireland/Highlands/Islands)
- Next working day delivery options (selected products & locations)
- We deliver between 8am and 6pm
- Contact us to delay delivery/request a specific day
- Limitless (that's right, no time limit!) returns on eligible items.
- Free of charge: either we will arrange collection/send a returns label, or we’ll refund your reasonable return postage costs.
- Returns for reasons other than damage or faults can only be accepted if the item is unused, unfitted, and returned in its original packaging and resaleable condition.
- Please note that made-to-order, personalised, or bespoke items manufactured to your specification are exempt from the standard cancellation rights under the Consumer Contracts Regulations and cannot be returned unless faulty or damaged.
- Whilst all our products pass strict quality standards, on very rare occasions an item may arrive damaged. We ask that you inspect the packaging before signing for delivery and note any visible damage when signing, or refuse the delivery and state damage as the reason.
- If you discover damage after accepting delivery, please contact us as soon as possible with photographs of the damage and packaging.
- Once damage or a fault has been confirmed, we will either replace the item completely free of charge or provide a full refund, including any applicable delivery charges.
-
How can I contact you?
You can message us on live chat. We aim to reply in one minute, between 9am - 5:30pm. After 5:30pm, we'll create a ticket and get back to you asap.
-
Where do you deliver?
We deliver to the whole of the UK and Northern Ireland - including the highlands and islands.
We are currently unable to offer international delivery. However, you can place an order for collection and arrange to have a courier of your choice collect the order and delivery it to you.
-
Who will deliver my order?
Our two primary couriers for UK Radiators products are Royal Mail and DX Express. Your courier will depend on the size and weight of the items on your order.
For example a pair of valves will be sent to you with Royal Mail, whereas a Column radiator will be sent with DX.
Tracking is provided for all orders dispatched from our warehouse.
If you order a Terma product, your item(s) will be coming directly from their warehouse.
The couriers they use are Stop Start and Parcelforce, and tracking is provided where possible.
-
Can I choose a specific time or day for my delivery?
If, for any reason, you would like to delay your delivery, please contact one of the customer service team as soon as you have placed your order, who will be able to assist you.
We are currently unable to request specific delivery time slots with our couriers.
Some of our couriers will advise you of a smaller time slot for your delivery, but unless otherwise stated, deliveries can take place any time between 7am and 7pm.
-
Can I upgrade my delivery?
We offer the option to upgrade delivery to either Two Man VIP delivery to a room of your choice, or Next Working Day delivery. Upgrade availability is dependant on the size of product and delivery location. Once dispatched, your order is sent on the delivery service chosen at checkout. This cannot be changed after dispatch.
-
Can I send orders to a different address?
You can change the shipping address to a different address if your billing address matches what's registered against your payment method.
However, this can only be done when placing the order.
We are unable to change the delivery address after the order has been placed and dispatched. In this instance, the order would need to be cancelled and refunded, and a new order placed with the correct delivery address.
