BURKERT Type 2012 (SKU 20111678) is an externally piloted globe valve consisting of a pneumatically operated piston actuator and a 2/2-way valve body. The actuator is made of PA (Polyamide). The reliable self-adjusting packing gland provides high sealing integrity. This maintenance-free and robust valve features a stainless steel housing with a weld end connection.

Product Variants

Stainless Steel Body with PA Actuator

Performance data	Value
Maximum pilot pressure
Actuator size 40 (C), 50 (D), 63 (E), 80 (F)	10 bar(g)
Actuator size 100 (G), 125 (H)	7 bar(g)
Actuator size 175 (K), 225 (L)	6 bar(g)
Medium data
Medium temperature	-10 °C...+ 185 °C
Environment and installation
Actuator size 40 (C)...125 (H) ambient temperature	-10 °C...+ 60 °C

Control Functions

The valve operates with flow direction above the seat for steam and gases. It utilizes Control Function A (CF A), meaning it is a pneumatically operated 2/2-way on/off valve that is normally closed by spring force.

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.

Approvals and Conformities

• Explosion Protection (ATEX): EPS 18 ATEX 2 008 X II 2G Ex h IIC T4…T2 Gb / II 2D Ex h IIIC T135 °C…T300 °C Db.
• Conformity: Compliant with Pressure Equipment Directive 2014/68/EU and Machinery Directive 2006/42/EC.

Material Specifications

No.	Element	Material (Stainless steel body with PA actuator)
1	Transparent cover	PC
2	Actuator	PA
3	Piston seal	NBR
4	Pilot air ports	Stainless steel 1.4305
5	Spindle seal	PTFE V-Rings (filled), with spring compensation
6	Spring	Stainless steel 1.4310
7	Pipe	Stainless steel 1.4401 or 316L
9	Body seal	Graphite, PTFE (option)
10	Spindle	Stainless steel 1.4401 or 1.4404
13	Seat seal	PTFE
15	Valve body	Stainless steel CF3M

Dimensions

Body with Welded Connection

Nominal diameter	ES	LS	DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B
DN	[mm]	[mm]	∅ DS [mm] / WS [mm]
10	20	90	17.2 / 1.6
15	20	90	21.3 / 1.6
20	20	100	26.9 / 1.6
25	26	130	33.7 / 2.0
32	26	140	42.4 / 2.0
40	26	150	48.3 / 2.0
50	26	175	60.3 / 2.0
65	26	210	76.1 / 2.3
80	26	230	88.9 / 2.3
100	26	260	114.3 / 2.6