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Lined Plastic Bellows Control Valves Straight Through Single Seated 20-150mm

Product Details

Place of Origin: China

Brand Name: WEYO

Model Number: HPF

Payment & Shipping Terms

Minimum Order Quantity: Negotiable

Price: Based on oroiect reauirements

Packaging Details: Customized packaging to protect products

Delivery Time: 7 - 15 days for small orders, 15 - 30 days for large orders

Payment Terms: L/C, T/T

Supply Ability: 5000 units per month for small parts. 1000 units per month for large parts

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Product Details

Product Description

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                                                                                                                                                                                                                                    Bellow Control Valves, 150mm Control Valves, 20mm electric control valve
                      

Type:	Straight-through Single-seated Control Valve	Nominal Diameter:	20～150mm
Nominal Pressure:	PN1.6MPa	Operating Pressure:	PN1.0MPa
Connection Type:	Flanged Type, JB/T79.1 PN1.6MPa	Material:	Carbon Steel Lined With F46
Operating Temperature:	-30～+150℃	Packing:	Polytetrafluoroethylene (PTFE)

Type:	Straight-through Single-seated Control Valve
Nominal Diameter:	20～150mm
Nominal Pressure:	PN1.6MPa
Operating Pressure:	PN1.0MPa
Connection Type:	Flanged Type, JB/T79.1 PN1.6MPa
Material:	Carbon Steel Lined With F46
Operating Temperature:	-30～+150℃
Packing:	Polytetrafluoroethylene (PTFE)

Lined Plastic Bellows Control Valves Straight Through Single Seated 20-150mm

HPF Lined Plastic Bellows Control Valve

The HPF lined plastic bellows control valve is a corrosion-resistant straight-through single-seated control valve. The inner wall of the valve body and the internal valve components that come into contact with the fluid are all lined with F46 anti-corrosion material. A bellows assembly is installed inside the valve. The top of the valve core is hermetically connected to the upper end of the PTFE bellows, and the lower end of the bellows is hermetically connected to the valve body, upper valve bonnet and support with bolts and nuts. In this way, the bellows isolates the medium from the outside world, ensuring that the valve core moves flexibly up and down. The valve has the following advantages:

It can resist corrosion from almost all chemical media (including concentrated nitric acid and aqua regia).
It has excellent sealing performance. Once the bellows is damaged, the control valve packing can serve as a second protective seal.

Structure Diagram of Internal Components of Lined Plastic Bellows Control Valve

Lined Plastic Bellows Control Valves Straight Through Single Seated 20-150mm 0

The Kv value and stroke are shown in Table 1. Table 1
Nominal diameter DN(mm)	3/4＂						20				25	32	40	50	65	80	100	150
seat diameter (mm)	3	4	5	6	7	8	10	12	15	20	26	32	40	50	65	80	100	150
rated flow coefficient Kv	0.08	0.12	0.2	0.32	0.5	0.8	1.2	2	3.2	5	8	12	20	32	50	70	100	240
flow characteristic	linearity						linear equal percentage
stroke(mm)	10										16		25		40				60

Figure 2 Flow Characteristic Curve

Lined Plastic Bellows Control Valves Straight Through Single Seated 20-150mm 1

Allowable pressure difference is shown in Table 2 Table 2 Unit: MPa

Action type	actuator	air supply pressure (MPa)	spring range (MPa)	positioner	allowable pressure difference (MPa)

					10	12	15	20	25	32	40	50	65	80	100	125	150
Air-closed type	HA2D	0.14	0.02-0.10	With or with out	1	0.88	0.57	0.32	0.22	0.13	0.09	0.05
		0.16	0.02-0.10	With		1	1	1	1	0.67	0.49	0.27
		0.4	0.08-0.24	With					1	1	1	0.75
	HA3D	0.14	0.02-0.10	With or with out							0.17	0.1	0.06	0.04	0.02	0.01	0.01
		0.16	0.02-0.10	With							0.85	0.49	0.31	0.21	0.12	0.07	0.04
		0.4	0.08-0.24	With							1	1	0.9	0.65	0.37	0.23	0.14
Air-to-open type	HA2R	0.14	0.02-0.10	With or with out	1	0.88	0.57	0.32	0.22	0.13	0.09	0.05
	HA2R	0.28	0.08-0.24	With					1	0.95	0.39	0.39
	HA3R	0.14	0.02-0.10	With or with out							0.17	0.1	0.06	0.04	0.02	0.01	0.01
	HA3R	0.28	0.08-0.24	With							1	0.6	0.43	0.3	0.17	0.1	0.06
Remarks: If the allowable pressure difference exceeds the provisions in this table, orders can be placed as special products.

Overall dimensions
Nominal diameter DN(mm)	3/4＂	20	25	32	40	50	65	80	100	150
L	120	180	185	200	220	250	275	300	350	480
ΦA	285				285		360			470
H	453	460	517	529	594	624	824	834	848	920
H1	50	65	70	80	79	85	100	114	162	240

Ordering Information

Model
Nominal diameter and Cv value
Flow characteristic
Accessories
Medium pressure and temperature
Valve action type
Actuator

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