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1 1 2 Globe Valve

1 1 2 Globe Valve

1 1 2 Globe Valve threaded cast iron valves can adjust the flow of cold and hot water when equipped with DFQ-X series motor drive control devices. They are widely used in liquid control in central air conditioning, heating, water treatment, industrial processing and other systems.
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Product parameters

●Valve core: stainless steel 06Cr19Ni10 (two-way), HPb59-1 (three-way)
●Valve stem seal: four-layer V-type and O-type combined nitrile rubber seal, polytetrafluoroethylene sealing sleeve
●Valve stem: stainless steel 06Cr19Ni10
●Valve body, valve cover material: HT250
●Nominal pressure (PN): 1.6MPa
●Working medium: water, fluid temperature 5~95℃
●Valve leakage: ≤0.03%KV
●Flange standard: GB/T 17241.6 PN16

DDF-S-X

 

Order code Product Model Valve type DN Connection Bolt size Kv value Stroke Dimensions Maximum closing pressure difference
[kPa]
L d D H H1
12451 DDF-S-X-232 2 WAY 32 Flange 4×M16 21 20 180 ∅100 ∅135 138 108 600 ------ ------
12452 DDF-S-X-240 2 WAY 40 Flange 4×M16 28 20 200 ∅110 ∅145 139 119 500 ------ ------
12453 DDF-S-X-250 2 WAY 50 Flange 4×M16 34 20 230 ∅125 ∅165 142 135 350 ------ ------
12454 DDF-S-X-265 2 WAY 65 Flange 4×M16 54 20 290 ∅145 ∅185 154 165 250 ------ ------
12455 DDF-S-X-280 2 WAY 80 Flange 8×M16 67 20 310 ∅160 ∅200 158 180 200 ------ ------
12456 DDF-S-X-2100 2 WAY 100 Flange 8×M16 120 40 350 ∅180 ∅220 200 200 ------ 300 500
12457 DDF-S-X-2125 2 WAY 125 Flange 8×M16 180 40 400 ∅210 ∅250 213 230 ------ 200 350
12458 DDF-S-X-2150 2 WAY 150 Flange 8×M20 256 40 480 ∅240 ∅285 229 270 ------ 150 200
12459 DDF-S-X-2200 2 WAY 200 Flange 12×M20 330 40 600 ∅295 ∅340 259 329 ------ ------ 150
12672 DDF-S-X-332 3 WAY 32 Flange 4×M16 21 20 180 ∅100 ∅135 138 90 600 ------ ------
12673 DDF-S-X-340 3 WAY 40 Flange 4×M16 28 20 200 ∅110 ∅145 139 100 500 ------ ------
12460 DDF-S-X-350 3 WAY 50 Flange 4×M16 34 20 230 ∅125 ∅165 142 115 250 ------ ------
12461 DDF-S-X-365 3 WAY 65 Flange 4×M16 54 20 290 ∅145 ∅185 154 145 200 ------ ------
12462 DDF-S-X-380 3 WAY 80 Flange 8×M16 67 20 310 ∅160 ∅200 158 155 150 ------ -----
12463 DDF-S-X-3100 3 WAY 100 Flange 8×M16 120 40 350 ∅180 ∅220 200 175 ------ 250 350
12464 DDF-S-X-3125 3 WAY 125 Flange 8×M16 180 40 400 ∅210 ∅250 213 200 ------ 200 250
12465 DDF-S-X-3150 3 WAY 150 Flange 8×M20 256 40 480 ∅240 ∅285 229 240 ------ ------ 200
12466 DDF-S-X-3200 3 WAY 200 Flange 12×M20 330 40 600 ∅295 ∅340 259 300 ------ ------ 150

 

 

Installation Instructions

 

 

 This series of valves is compatible with Siemens actuators.
 The valve stem moves downwards in the direction of valve opening.
 Before installing the valve, the pipeline should be clean and free of scale, metal flakes and other debris left during welding.
 The pipeline must be concentric and free of vibration when connected to the valve body, and the water flow direction should be consistent with that marked on the valve body.
 When the actuator is installed vertically on the valve body, avoid installing the actuator under the valve, and leave enough space for daily maintenance (such as disassembling the actuator).
 When maintaining the valve, the power supply must be cut off or isolated, and the water system should not be under pressure.

 

 

FAQ

 

1.What is a 1 1 2 globe valve and what is its role in HVAC systems?
A stop valve is a valve used to control fluids. Its main function is to open or close a fluid channel and regulate flow. In HVAC systems, it is used to regulate or cut off the flow of fluids such as water, coolant, steam, etc. to ensure that the system operates as required.

 

2.What are the advantages of using a stop valve in HVAC systems?
The design of the stop valve gives it excellent sealing performance, which can effectively prevent fluid leakage. At the same time, its intuitive operation allows precise control of flow and is suitable for environments with various temperatures and pressures.

 

3.What is the difference between a Y-type stop valve and an ordinary stop valve?
The Y-type stop valve has an inclined valve body in structure, which has less resistance when the fluid passes through, so it can significantly reduce the pressure drop. In contrast, the fluid path of an ordinary stop valve is more straight or right-angled, which may result in a higher pressure drop.

 

4.In what cases should a 1 1 2 globe valve be selected?
The Y-type stop valve is suitable for systems that need to frequently adjust the flow and want to reduce energy consumption or pressure drop. For example, in HVAC systems with long pipes or high flow rates, the low pressure drop characteristics of the Y-type stop valve help improve efficiency.

 

5.Are there any requirements for the installation direction of the stop valve?
The stop valve should generally be installed in the direction of the medium flow. Most valves have an arrow on the valve body indicating the flow direction to ensure correct installation and avoid pressure differential problems in the system.

 

 

 

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