SR204 FCU used motorized electric two-way automatic filter valve for air conditioner
Product description:
SR204 Electric Dynamic Balancing valve is a new product for fan coil temperature control in HAVC system. It combines dynamic equilibrium and electric switch functions in one compact, high control precision, stable operation.SR204 Electric dynamic balancing valve consists of an electric actuator and a dynamic balancing two-way valve. Widely used in HVAC fan coil system it can also be used in other systems with similar functional requirements.
Features:
Electric actuator is used in the beginning of the valve or as PDM execution control part to control closed loop valve double-way and stability for water heating system or central air conditioning water system, directly installed in water heating system on the backwater line or the thermostatic valve, when the actuator power off, the valve will be closed. Paraffin thrusters, the PTC heating driven pusher with spring reset function. Work noise-free operation, location, or the degree of opening stroke indication.
Functions:
1.Electric switch function: according to control signal from the electric room thermostat, switch function will control actuator to turn on or off.
2.Dynamic Balancing function: When the valve is opened in the working pressure range, the dynamic balancing system changes as the differential pressure changes, the flow rate remains balance and not influenced by system pressure fluctuations.
3.Constant flow or the setting flow: flow rate can be set at the factory according to the air conditioning equipment, the flow rate was maintained as the design of flow rate required by the end device.
Material Description:
Body material: Forged Brass
Seals: EPDM
Valves guts: stainless steel or copper alloy
Spring, stem, valve seat: 304 stainless steel
Actuator parameter
Model | Voltage | Power | Time to on or off | Stroke |
SR42.B.24 | AC24V | 2VA | 3min(25℃) | 3.5min |
SR42.B.110 | AC110V | 2VA | 3min(25℃) | 3.5min |
SR42.B.220 | AC220V | 2VA | 3min(25℃) | 3.5min |
Technical Parameters:
Technical Parameters:
Nuts connection installation is easy, fast, easy removal
Voltage: AC24C, 110V, 220V
Power consumption: 2VA (consumable power)
Thrust: 110N
Stroke: 3.5mm
Whole distance time: 3 ~ 5min
Opening and closing time: 3min (25 ℃)
Connection Size: M30X1.5 nut
Ambient temperature: -5 ~ 60 ℃
Cable Length : 900mm
Housing material: Flame retardant PC
Shell Protection: IP44
Size range: DN15 DN20 DN25
Working pressure: PN20
Close differential pressure: 4Bar
Working Medium: Water
Medium temperature: 0 ~ 95 ℃
Model and size
model | L(mm) | L1(mm) | H(mm) | Constant flow (m3/h) | Differential pressure | Nominal pressure |
DN15 two-way valve | 98 | 143 | 116 | 0.8 | 3.0mpa | 2.0mpa |
DN20 two-way valve | 100 | 145 | 118 | 0.9 | 0.28mpa | 2.0mpa |
DN25 two-way valve | 102 | 148 | 120 | 1.1 | 0.25mpa | 2.0mpa |
CERTIFICATION: ISO, TS, API, GOST, CE....etc
We pay much attention in Test process:
(1) Shell Hydrostatic Test
| ANSI B 16.34 Section 7.1 | |||||||
| Valve Size NPS | Test pressure | Test Time. Sce | |||||
| Below DN50 | 1:5 times the 100°F | 15 Sce | |||||
| DN65~DN200 | Rating of ANSI Class | 60 Sce | |||||
| Up DN250 | Max. Operating Pressure | 180 Sce | |||||
| Test pressure should be above 1.5 times than the valve's Max work pressure (100F) | |||||||
(2) Seal Hydrostatic Test
The pressure should be more 1.1 times than working pressure by seal hydrastatic test
| ANSI B 16.34 Section 7.2 | |||||||
| Valve Size NPS | Test pressure | Test Time. Sce | |||||
| below DN50 | 1:1 times the 100°F | 15 Sce | |||||
| DN65~DN200 | Rating of ANSI Class | 30 Sce | |||||
| above DN250 | Max. Operating Pressure | 60 Sce | |||||
| Test pressure should be more 1.5 times than the valve's Max work pressure (100F) | 180Sce | ||||||
(3) Seal Air Test
Seal air leakage test is based on 80PSIG(6kgf/cm2) inert-gas or the air reach the test pressure, then close the valve. after that check the valve whether it is leakage or not.
1.100% factory price, because we are direct producer of ball valve, butterfly valves, check/non-return valves, gate valves and so on.
2.Market, technical support and after-sale service within 24 hours.
3. You can order your own configuration.
A: Manual B: pneumatic C: electric D: bare shaft E: disc with pin F: disc without pin G: double half shaft H: one piece body I: two pieces body J: logo
Fully welded ball valve - Company advantages:
1. We are factory: We have strict quality control system and amounts of testing equipments for different kind of valve, such as size, pressure, working environment etc. also can provide the competitive price.
2. Certification: API, CE, ISO,GOST, TS ..etc
3. Low MOQ: Our factory owns the casting company by itself. We are always ready for providing the sample and producing some small orders, in order to meet the business well.
4. OEM Accepted: We can make the products with the client's demand standard or the customer requirement.
5. Complete Service: We are always ready to hear from you, reply within 12 hours.
6. Quick Delivery: We always keep the large stock for some hot products.
1.What's payment terms? 30% payment in advance, 70% balanced before delivery. (if total value is USD$ 500, we suggest 100% payment in advanve.)
2.What's MOQ? One set. (if small size, we can check if free sample or not, freight need to be paid by customer.)
3.How control the quality of ball valve?
Select high quality raw material; Strict required during machining; Seat material comply with food grade; Tested twice to insure zero leakage; First copper plating disc, then nickle plating disc to increase the adhesiveness
4.Delivery time?
10-15 days after received the advance payment. (if stock, about 10 days)