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Three-way pneumatic angle seat valve

Category: Pneumatic angle seat valve

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Detailed description

Working Principle

This valve is equipped with three through-holes, enabling directional switching, flow diversion, or mixing functions, and can to a certain extent replace two two-way shut-off valves. In the non-operating state, due to the action of the spring, port C remains normally closed while port B remains normally open; when the actuator piston is driven * compressed gas, port C opens and port B closes. In the double-acting configuration, the opening and closing of the valve are controlled * compressed air.

Technical Specifications

Working pressure: Max 1.6 MPa

Control pressure: 0.3–0.8 MPa

Control medium: neutral gas or air

Valve body material: CF8M

Cylinder material: CF8

Sealing material: PTFE

Medium temperature: -10°C to +180°C

Ambient temperature: -10°C to +80°C

Control type: single-acting normally closed, double-acting normally closed, double-acting free-state

Connection types: threaded, quick-connect

Applicable media: water, steam, oil, neutral gases or liquids, organic solvents, acid and alkali solutions, etc.

External dimensions

Threaded

Size	Actuator	Q	C	R	G	A	K	L	sw	Weight (kg)
DN15	40	G1/8	50.5	27	1/2 "	195	50	68	27	0.91
DN20	50	G1/8	60	33	3/4 "	230	60	75	32	1.25
DN25	50	G1/8	60	33	r	242	68	90	40	1.64

Quick-install

Size	Actuator	Q	C	R	D	A	K	L	Weight (kg)
DN15	40	G1/8	50.5	27	34	223	80	90	0.99
DN20	50	G1/8	60	33	50.5	246	80	90	1.48
DN25	50	G1/8	60	33	50.5	262	90	100	1.78

Pressure parameters

Configuration 1: Single-acting forward spring

Size	Actuator	Q	C	R	D	A	K	L	Weight (kg)
DN15	40	G1/8	50.5	27	34	223	80	90	0.99
DN20	50	G1/8	60	33	50.5	246	80	90	1.48
DN25	50	G1/8	60	33	50.5	262	90	100	1.78

Configuration 2: Single-acting reverse spring

Specifications	Actuator	Interface	Inner hole	Flow rate KV (m³/h)		Differential	Differential	Control
Size	Actuator	Interface	Inner hole	A→B	A→C	pressure range △P (MPa) A→B/A→C	pressure range △P(MPa)C→A	pressure (MPa)
DN15	40	1/2''	14	4.1	4.9	0-1.6	1.2	0.4-0.6
DN20	50	3/4 "	18	5.8	6.5	0-1.6	0.8	0.3-0.5
DN25	50	1"	24	13.9	14.4	0-1.4	0.4	0.3–0.65

Configuration 3: Double-acting forward spring

Specifications	Actuator	Interface	Inner hole	Flow rate KV (m³/h)		Differential	Differential pressure range △P(MPa)C→A	Control
Size	Actuator	Interface	Inner hole	A→B	A→C	pressure range △P(MPa)A→B/A→X:	Differential pressure range △P(MPa)C→A	pressure (MPa)
DN15	40	1/2''	14	4.1	4.9	0-1.6	1.2	0.4-0.6
DN20	50	3/4 "	18	5.8	6.5	0-1.6	1.4	0.45-0.65
DN25	50	1"	24	13.9	14.4	0-1.1	0.6	0.45-0.65

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