BURKERT 361520 (Type 2101) is a pneumatically operated 2/2-way globe valve specially optimised for decentralised process automation. It meets all practical requirements even under difficult operating conditions. Its unique design allows easy integration of automation units in all expansion stages, from electrical/optical position feedback to pneumatic control and integrated fieldbus interface. Maximum service life and tightness are achieved by the proven self-adjusting v-seal packing gland. The highly integrated system of valve and automation unit is characterised by its compact and smooth design, integrated pilot air ducts, protection classes IP65/67, NEMA Type 4X and high resistance to chemicals.

General Technical Data

Product properties	Description
Design	Globe valve
Nominal diameter	DN 10...DN 100, NPS 3/8...NPS 4 (Model 361520 is DN15)
Safety setting	Normally closed (control function A), normally open (control function B)
Flow direction	Against closing direction (below seat), with closing direction (above seat)
Operating pressure	0 bar(g)...25 bar(g) (Model 361520 is 0-16 bar)
Pilot pressure	2.5 bar(g)...10 bar(g)
Seat leakage	Leakage rate A (DIN EN 12266 - 1), seat seal PTFE and PEEK, test medium air
Operating medium	Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, organic solvents, oxygen and fuel gases
Medium temperature	- 40 °C...+ 230 °C (Model 361520 is -10 °C to 185 °C)
Viscosity	Max. 600 mm²/s
Control medium	Air, neutral gases
Ambient temperature	- 10 °C...+ 100 °C (Model 361520 is -10 °C to 60 °C)
Degree of protection	IP65/67
Installation position	As required, preferably with actuator in upright position

Structure and Function

The globe valve consists of a pneumatically actuated piston actuator and a 2-way body. The actuator is made from polyphenylene sulphide (PPS) or stainless steel (for actuator size 225).

Depending on the variant, the valve seat is closed in the direction of or against the medium flow. Spring force (CFA) or pneumatic pilot pressure (CFB and CFI) generate the closing force on the swivel plate. A spindle connected to the actuator piston transmits the force.

Control Functions

WARNING

Risk of damage due to bursting pipes and bursting equipment when the flow is above the seat. In the case of liquid mediums, water hammer can occur causing pipes and the device to burst. Do not use valves with flow above the seat for liquid mediums.

• Control function A (CF A): Pneumatically operated 2/2-way on/off valve. Flow direction below seat. Normally closed by spring force. (Applies to Model 361520)
• Control function B (CF B): Pneumatically operated 2/2-way on/off valve. Flow direction below seat. Normally opened by spring force.
• Control function I (CF I): Actuating function via reciprocal pressurisation.

Materials

Note

The lubricants for packing gland and actuator are classified according to NSF H1.

No.	Element	Material
1	Ground terminal	Stainless steel 1.4301/1.4305 only for ATEX variant
2	Optical position indicator	Optical position indicator polysulfone PSU
3	Pilot air ports	Push-in connector PP (standard) / Thread G 1/8" stainless steel 1.4305 (on request)
4	Actuator cover	PPS
5	Actuator casing	Stainless steel 1.4561 (316Ti)
6	Piston seal	FKM
7	Spring	Stainless steel 1.4310
8	Pipe	Stainless steel 1.4401 (316)/1.4404 (316L)
9	Spindle packing	PTFE V-Rings (filled), with spring compensation
10	Spindle	Stainless steel 1.4401 (316)/1.4404 (316L)
11	Spindle guide	DN 15...DN 65: PEEK / DN 80...DN 100: 1.4401 (316)/1.4404 (316L)
12	Body seal	Graphite, PTFE (option)
13	Swivel plate	Stainless steel 1.4401 (316)/1.4404 (316L)
14	Seat seal	PTFE, PEEK (option)
15	Valve seat with O-ring	Stainless steel 1.4571, EPDM
16	Valve body	Stainless steel 316L / CF3M

Dimensions

Actuator Dimensions

Nominal diameter (DN)	NPS	Actuator size ∅ [mm]	∅ A	H
10	3/8	50 (D)	64.5	236
10	3/8	70 (M)	91	250
15	1/2	50 (D)	64.5	236
15	1/2	70 (M)	91	250
20	3/4	50 (D)	64.5	242
20	3/4	70 (M)	91	256
20	3/4	90 (N)	120	318

(Dimensions in mm, unless otherwise stated. See full datasheet for sizes up to DN100).

Basic Safety Instructions

DANGER

Risk of injury due to high pressure in the system or device.

• Before working on the system or device, switch off the pressure and ventilate or empty the lines.

Risk of injury due to electric shock (with installed electrical components).

• Before working on the device or system, switch off the power supply. Secure against reactivation.

WARNING

Risk of injury when opening the actuator. The actuator contains a spring under tension. When the actuator is opened, the spring will jump out and may cause injuries.

• Do not open the actuator.

Risk of injury due to moving parts in the device.

• Do not reach into openings in the device.

ATTENTION

Loose screw connection of the valve body connection with high mechanical stress or in applications with increased temperatures. If the pipeline is subject to high mechanical stress (vibrations) or in applications with temperatures above 140 °C, the screw connection on the valve body connection must be checked before installation and regularly during operation.