Pneumatic flange hard seal butterfly valve - butterfly valve - product center - Hefei proliferation bo luo industrial control equipment co., LTD

butterfly valve

Pneumatic flange hard seal butterfly valve

　　Pneumatic hard seal pair butterfly valve

　　Product model: D643H

　　Nominal diameter: DN50~DN1200

　　Nominal pressure: 1.0MPa~1.6MPa

　　Connection method: clip type

　　Material: WCB, stainless steel

　　Applicable temperature: -40~+425°C

　　Applicable medium: gas, water oil, etc. (high temperature occasion)

　　Pneumatic actuator: double acting, single acting

　　Uses: Used to cut or adjust various corrosive and non-corrosive media

　　Pneumatic hard seal pair butterfly valve product overview

　　The pneumatic hard sealing butterfly valve adopts a three-dimensional eccentric structure, and the butterfly plate is a soft and hard laminated metal sheet, which has the double advantages of a metal hard seal and an elastic seal. It has a two-way sealing function, is not limited by the flow direction of the medium during installation, and is not affected by the position of the space, and can be installed in any direction. Pneumatic hard seal butterfly valves are widely used in metallurgical, electric power, petroleum, chemical and other industrial pipelines with medium temperature ≤ 425 °C to regulate flow and cut off fluids.

　　Pneumatic hard seal pair butterfly valve features

　　1, metal seal can be applied to media with a little particles, slurry

　　2, the applicable temperature can reach 425 ° C

　　3, almost no friction when sealing, to ensure less torque, better sealing

　　4, flange to the pinhole connection for a variety of standards

　　Pneumatic hard seal pair butterfly valve actuator

　　The new series of GT-type pneumatic actuators are double-acting and single-acting (spring-return), gear transmission, safe and reliable; large-diameter valves adopt series AW pneumatic actuator fork-type transmission, with reasonable structure and large output torque. There are double acting and single acting.

　　1. Gear type double piston, large output torque and small volume.

　　2. The cylinder is made of aluminum and gold materials, which is light in weight and beautiful in appearance.

　　3. Manual operation mechanism can be installed at the top and bottom.

　　4. The rack-and-pinion connection can adjust the opening angle and rated flow.

　　5. The actuator can be equipped with electric signal feedback indication and various accessories for automatic operation.

　　6, IS05211 standard connection provides convenience for the installation and replacement of the product.

　　7. The joint screws adjusted at both ends can make the standard product have an adjustable range of ±4° at 0° and 90°. Ensure synchronization with the valve.

　　Pneumatic hard seal pair butterfly valve technical parameters and performance

GTD/ATDTechnical parameters of pneumatic actuators		Pneumatic seal butterfly valve parameters
Types of	Double-acting piston, spring return	Nominal diameter	DN50～400mm
Air pressure	Double acting:2-8bar/Single acting:4-8bar	Nominal	PN1.6、2.5MPa
Output torque	Double acting:4N·M～10560N·M	Valve shaft material	Carbon steel、304/316/316Lstainless steel
Output torque	Single acting:N·M～2668N·M	Body material	Carbon steel, alloy steel, stainless steel
Operating temperature	Normal temperature: -20 ℃ ~ 80 ℃ (nitrile rubber O-rings)	Stem material	Carbon steel, alloy steel, stainless steel
Operating temperature	High temperature: -20 ℃ ~ 160 ℃ (Viton O-ring)	Seating	stainless steel
Range of motion	0～90°±5°	structure type	Three-dimensional eccentric
Connection thread	GTD40～GTD83/ATD50～ATD88 G1/8″	temperature	≤425℃
Connection thread	GTD110～GTD350/ATD100～200 G1/4″	Applicable medium	Water, air, natural gas, oil and weak corrosive fluid
Valve position signal	Locator: 4 ~ 20mA / reply is: fully open fully closed signal	Feature	Zero leakage, long life, easy to install, high temperature high pressure

Nominal diameter(mm)	Size（mm）
	L	L1	H	1.6Mpa		2.5Mpa
	L	L1	H	D1	4-Φd	D1	4-Φd
50	43	108	245	125	4-18	125	4-18
65	46	112	250	145	4-18	145	4-18
80	46	114	350	160	4-18	160	4-18
100	52	127	380	180	4-18	190	4-22
125	56	140	410	210	4-18	220	4-26
150	56	140	490	240	4-22	250	4-26
200	60	152	560	295	4-22	310	4-26
250	68	165	621	355	4-26	370	4-30
300	78	178	680	410	4-26	430	4-30
350	78	190	757	470	4-26	490	4-33
400	102	216	825	525	4-30	550	4-36
450	114	222	925	585	4-30	600	4-36
500	127	229	1010	650	4-33	660	4-36
600	154	267	1180	770	4-36	770	4-39

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