FREE Delivery On All Orders Over £250 - Conditions Apply

Supplying the poultry industry for three decades

SKU: 77050

Butterfly Valve - M20 Swivel Female x 1/2"BSPT Female



Whether you have a small or large-scale poultry farm, you need all the proper hardware to keep your systems functioning. Our M20 Swivel Female Butterfly Valve is extremely durable.

Butterfly valves are easy to operate and don't take up too much space, making them an excellent addition to your plumbing systems. The M20 Swivel Butterfly Valve is exceptionally resistant to wear and tear, so you can expect an extremely long life cycle. 

Here at Dalton Engineering, we aim to exceed your expectations with all of our products and hardware. Feel free to reach out to our team today to ask more about our M20 Swivel Female Butterfly Valve, or any of our other products.

Delivery and Shipping

We use DX and DPD to deliver our orders. Our delivery zones and rates are listed below:

Free Delivery (UK Mainland Only *Some post codes excluded, see Zone 2 above)

For deliveries between 0 and 100Kg with a value that exceeds £249.99 plus VAT we offer free delivery. Orders over 100kg do not benefit from free delivery.

Delivery zone 1 (UK Mainland *Some post codes excluded, see Zone 2 below)

* 0 - 0.99Kg DPD £4.50 plus VAT
* 1 - 19.99Kg Courier £8.00 plus VAT
* 20Kg Courier £8.00 plus VAT + 22p per Kilo thereafter up to a limit of 100Kg

Delivery zone 2 (BT, IM, IV, KW, HS, ZE Post Codes)

* 0 - 0.99Kg DPD £4.50 plus VAT
* 1 - 19.99Kg Courier £32.00 plus VAT
* 20Kg Courier £32.00 plus VAT + 58p per Kilo thereafter up to a limit of 100Kg

*Regional Exclusions & Weight Restrictions Apply

Payment & Security

Payment methods

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  • Shop Pay
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

  • Free Delivery

    On All Orders Over £250

  • Special offers

    Regular sales and discounts

  • Easy returns

    Hassle free returns policy

  • Chat facility

    Talk to a real person


When Mr Heinz Kremer started a company in december of 1956, he had no idea that his company would evolve into Gasolec B.V. a Dutch company that produces gas heaters for the poultry and pig market all over the world. Being one of the oldest producers in the market, Gasolec has almost 70 years of experience in designing and developing heaters through its own Research and Development department. The products comply with the highest standards in the market. Through a continuous search for improvements Gasolec is able to fulfil the needs of its customers.

Gasolec has a few simple guiding principles towards its customers:
1) Deliver the best value for money.
2) Focus on long term relationships through good sales support, service & maintenance.
3) Always delivery high quality through our products and our way of working.
4) Minimize the stock of complete heaters and light units at the dealers by realizing short delivery times through flexible production processes.

About Dalton Supplies

Dalton Engineering has been in the poultry business for over 35 years. We are experts at looking after your poultry feeding, drinking and ventilation systems.