Pneumatic PTFE valve

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Pneumatic PTFE valve

Model: D671F
Nominal diameter: DN50 ~ 1200mm
Nominal pressure: 0.6 ~ 1.6MPa
Body material: ductile cast steel, cast steel, alloy steel, stainless
Temperature: -30 ~ + 70 ℃
Medium: air, water, sewage , steam, gas, oil and other
Design criteria: GB / T2238-1989
Flange size: GB / T9113.1-2000, GB / T9115.1-2000 , JB78
Length of the structure: GB / T12221-1989
Pressure test: GB / T13927-1992, JB / T9092-1999

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產(chǎn)品詳細

First, pneumatic PTFE sealing butterfly valve product overview

AT pneumatic PTFE butterfly valve by the PTFE seal and stainless steel valve plate, stem composition. Pneumatic PTFE sealing butterfly valve for temperature ≤ 150 ℃, weak corrosion or cleanliness requirements of a certain conditions, in food, medicine, chemicals, petroleum, electricity, paper and other water supply and drainage, gas pipeline for regulating the role of flow and interception of the media .

AT pneumatic PTFE butterfly valve main features
1, a new design, reasonable, unique structure, light weight, quick opening and closing.
2, torque is small, easy to operate, labor-saving smart.
3, can be installed in any location, easy maintenance.
4, seals can be replaced, sealing performance and reliable two-way seal to achieve zero leakage.
5, sealing material aging resistance, corrosion resistance, long life and other characteristics.

Second, pneumatic PTFE valve main technical parameters

1, the valve body

Body form	Straight-through casting body
Nominal diameter	DN50 ~ 1200mm
Nominal pressure	PN 0.6, 1.0, 1.6 MPa
Flange standard	GB, JB, HG, ANSI, JIS
Connection Type	Clip, flange type
Gland type	Integrated
Sealed packing	V-type PTFE filler, flexible graphite filler

2, the valve parts

Valve plate form	Vertical plate (butterfly)
Flow characteristics	Switch type: Linear; Adjustable: approximation and other white points

3, the implementing agency

Actuator model	GT series, SR series, AT series, AW series of single-and double-acting pneumatic actuator
Supply pressure	400 ~ 700KPa
Air source interface	G1 / 4 ", G1 / 8", G3 / 8 ", G1 / 2"
Ambient temperature	-30 ~ +70 ℃
The role of form	Single-acting actuator: Off Gas formula (B) - loss of gas when the valve opening (FO); open air (K) - loss of gas when the valve closed position (FC) double acting actuator: Off Gas formula (B ) - Leakage valve position to maintain (FL); open air (K) - loss of valve position to maintain (FL)
Can be equipped with accessories	Positioner, Solenoid valve, Air filter pressure reducer, Relief valve, Stroke switch, Valve position transmitter, Hand wheel mechanism, etc.

Third, pneumatic PTFE butterfly valve main performance indicators

Nominal diameter	DN (mm)	50 ~ 2000
Nominal pressure	PN (MPa)	0.6	1.0	1.6
test pressure	Strength test	0.9	1.5	2.4
	Seal test	0.66	1.1	1.76
	Gas seal test	0.6	0.6	0.6
Suitable media	Air, water, sewage, steam, gas, oil and so on.
Drive form	Manual, worm gear drive, gas drive, electric drive.

Fourth, pneumatic PTFE valve parts materials

Part Name	material
Body	Ductile cast steel, cast steel, alloy steel, stainless steel
Butterfly plate	Gray cast iron, ductile cast steel, cast steel, stainless steel and special materials
Sealing ring	PTFE, PTFE
Valve stem	2Cr13, stainless steel
filler	O-ring

Five, pneumatic PTFE valve shape connection size

Nominal diameter (mm)		50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000
L		90	90	100	115	130	140	150	250	270	290	310	330	350	390	430	470	500	550
L1		43	46	49	56	64	70	71	76	83	92	102	113	127	154	165	190	203	216
H	Flanged	63	70	83	105	115	137	164	206	230	248	289	320	343	413	478	525	585	640
H	Clip-on	63	70	83	105	115	137	164	206	230	248	289	320	343	413	478	525	585	640
n-φd		4-18	4-18	8-18	8-18	8-18	8-22	12-22	12-26	12-26	16-26	16-30	20-30	20-33	20-36	24-36	24-39	28-39	28-42
H1		According to the allocation of implementing agencies may be
A		Depending on the torque required by the valve, the configuration of different models, dimensions are not the same
D		165	185	200	220	250	285	340	405	460	520	580	640	715	840	910	1025	1125	1255
D1		125	145	160	180	210	240	295	355	410	470	525	585	650	770	840	950	1050	1170

Note: the size of the table without standard attachment data. The other due to product improvement technical innovation parameters may have some changes, please consult the company's technical department for the latest data.

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