Automatic differential by-pass valves have been designed to stabilise the circulation, flow rate and pump pressures in heating systems. The valve can easily be set based on system calculations for the differential pressure and the visual dial on the valve. This allows the optimum flow rate through the boiler to be maintained by the valve automatically opening to by-pass, allowing the circulation to continue even if the thermostatic radiator valves are closed.
- Automatically stabilises flow
- Protects the pump from pumping against closed head
- Easily adjustable
- Available with 22mm & 28mm angled or straight connections
| Brand |
HEAPE |
| Threaded connections |
22mm or custom |
| Certification |
CE,ISO9001:2008,TUV |
| Material |
Brass and plastic |
| Maximum Working Pressure |
8-10 Bar |
| Max Operating Temperature |
110ºC |
| Flow capacity |
1-5 m3/h |
| differential pressure range |
0.1-0.5bar |
FAQ
Q: Why choose your factory?
A: Heape can provide the best quality products to help you promote the market. We have professional technicians and good management for production, also provide the best after-sell services. You can rest assure that you will feel relax when you cooperate with us.
Q: How long is your product guarantee period?
A: We have three-year guarantee and 24 hours full-time service.
Q: What is your MOQ?
A: We have very small MOQ. We have a large warehouse and we promise "Quick Order, Immediate Delivery".
Q: Can you accept OEM?
A: Yes, we can do OEM for you. And we also have professional technical team, we can provide ODM service too.
Q: How long is your delivery time?
A: For the items if we have enough stocks, we can send to you immediately. For mass production, we can promise 30-35 days.
Q: What is your package?
A: We will do very good protection for all the goods. Generally we pack the products with inner white box and yellow master carton. The master carton is very strange due to 5-layers corrugated paper. All the cartons will be packed with Plywood pallets.
Q: What's your payment term?
A:1. T/T 30% as deposit, the balance shall paid before shipment.
L/C at sight (for large quantity order)
OA 30/45/60 days (for good reputation customers)
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