Pneumatic triple eccentric clamp-on butterfly valve

The pneumatic clamp-on soft seal butterfly valve consists of a centerline butterfly valve and a pneumatic actuator as a whole assembly. The pneumatic device adopts a new series of GT type pneumatic actuators, with double-acting and single-acting (spring return), gear transmission, safe and reliable; The large-diameter valve adopts a series of AW type pneumatic actuator pull-fork transmission, with reasonable structure and large output torque, with double-acting and single-acting types. It is especially suitable for two-way sealing and valve body easy to corrode occasions to adjust the flow rate and intercept the medium. The products are widely used in thermal power plants, mines, lime plants, cement plants, laundry detergent plants, etc.

Main component materials

Send Inquiry Contact Us

Product Description

Product Overview

Main component materials

Sealing Material:

Natural rubber (NR) -20~+85°C

Ethylene propylene rubber (EPDM) -40~+125°C

Nitrile butadiene rubber (NBR) -20~+82 °C

Silicone rubber (SI) -70~+150°C

Fluoroelastomer (FPM) -23~+150°C

Fluoroprene (CR) 0~+80°C

Butyl rubber (IIR) -40~+100°C

Polytetrafluoroethylene plastic (PTFE) +10~+150°C

Flange connection size: GB4216-84, GB9115-88

Length: GB2221-89;

Stress Test: GB? T13927-92；

Key Performance Specifications

Nominal diameter	DN（mm）	50～1000
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
	Hermetically sealed test	0.6	0.6	0.6
Applicable media	Air, water, sewage, steam, gas, oil, etc.
Drive form	Pneumatic transmission

Main technical parameters:

DN(mm)	DN50～1000mm
Nominal Pressure(MPa)	PN1.0、1.6、2.5MPa
Valve body form	Straight-through cast body
Form of connection	Flange type, pair clamp type
Spool form	Butterfly plate type
Sealing packing	Flexible graphite, PTFE
Fundamental error	With positioner: less than ±2% of full stroke
Return	With positioner: less than ±2% of full stroke
Control mode	Switching type (two-position switching), Regulating type (4~20mA control)
Configure the actuator model	GT, AT, AW series single and double acting pneumatic actuators
Air supply pressure	0.4～0.7MPa
Air supply connection	G1/4"、G1/8"、G3/8"、G1/2"
Ambient temperature	-30～+70℃
Form of action	Single-acting actuator, double-acting actuator
Accessories are available	Positioners, solenoid valves, air filter pressure reducers, position retention valves, travel switches, valve position transmitters, handwheel mechanisms, etc

Connection Size (mm)

DN	L	H	HO	A	B	0.6MPa		1.0MPa		1.6MPa
DN	L	H	HO	A	B	DO	n-d	DO	n-d	DO	n-d
50	43	63	315	180	65	110	4-14	125	4-18	125	4-18
65	46	70	330	180	65	130	4-14	145	4-18	145	4-18
80	46	83	390	245	72	150	4-18	160	8-18	160	8-18
100	52	105	431	240	72	170	4-18	180	8-18	180	8-18
125	56	115	455	240	72	200	8-18	210	8-18	210	8-18
150	56	137	626	350	93	225	8-18	240	8-22	240	8-22
200	60	164	720	350	93	280	8-18	295	8-22	295	8-22
250	68	206	800	550	350	335	12-18	350	12-22	355	12-26
300	78	230	860	600	350	395	12-22	400	12-22	410	12-26
350	78	248	883	600	350	445	12-22	460	16-22	470	16-26
400	102	289	972	600	350	495	16-22	515	16-26	525	16-30
450	114	320	1043	750	350	550	16-22	565	20-26	585	20-30
500	127	343	1098	750	380	600	20-22	620	20-26	650	20-33
600	154	413	1236	750	380	705	20-26	725	20-30	770	20-36
700	165	478	1431	750	380	810	24-26	840	24-30	840	24-36
800	190	525	1488	750	380	920	24-30	950	24-33	950	24-39
900	203	620	1615	1250	380	1020	24-30	1050	28-33	1050	38-39
1000	216	725	1765	1500	580	1120	28-30	1160	28-36	1170	28-42