BURKERT Type 2032 externally controlled diaphragm valve consists of a pneumatically operated piston actuator, a diaphragm, and a T-valve body. The proven and robust actuator with a plastic housing ensures use in hygienic or aggressive ambient conditions. The flow-efficient valve bodies with little dead space enable high flow rates and a wide range of possible uses. The valve body and the diaphragm are available in all common materials and variants. The actuator has a compact, autoclavable design (PPS variant). The integration of automation units is possible in all configuration levels. An explosion-proof ATEX/IECEx device variant is available.

General Technical Data

Product properties
Block body (VH)	Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASTM A479 / A479M
Block body (VI)	Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASME BPE
Diaphragm	EPDM (AD), PTFE/EPDM (EA), Advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER)
Actuator	PPS, PA
Diaphragm size	8...100
Standard surface quality	Internally electrically polished: Ra ≤ 0.38 μm (ASME BPE SF4 / DIN HE4) Internally mechanically polished: Ra ≤ 0.5 μm (ASME BPE SF1)

Performance data
Maximum pilot pressure (CF A)	7 bar (for actuator size 40 to 125 / PPS) 6 bar (for actuator size 175 and 225 / PA)
Pilot air port	Thread G 1/4, thread G 1/8 for actuator size 40 and 50

Medium data
Operating medium	Neutral gases and liquids, highly purified, sterile, aggressive or abrasive mediums
EPDM (AD)	-10 °C...+143 °C (steam sterilisation max. +150 °C for 60 min)
PTFE/EPDM (EA)	-10 °C...+130 °C (steam sterilisation max. +140 °C for 60 min)
Advanced PTFE/EPDM (EU)	-5 °C...+143 °C (steam sterilisation max. +150 °C for 60 min)
Laminate of GYLON® and EPDM (ER)	-5 °C...+130 °C (steam sterilisation max. +140 °C for 60 min)
Control medium	Neutral gases, air

Environment and installation
PPS, actuator size ≤ 80 mm	+5 °C...+140 °C
PPS, actuator size 100 mm, 125 mm	+5 °C...+90 °C (short-term up to +140 °C)
PA, actuator size ≤ 125 mm	-10 °C...+60 °C
PA, actuator size ≥ 175 mm	-10 °C...+50 °C

Control Functions

• Control function A (CF A): Pneumatically operated T-valve. Normally closed by spring force.
• Control function B (CF B): Pneumatically operated T-valve. Normally opened by spring force.
• Control function I (CF I): Pneumatically operated T-valve on either side. Switching position dependent on external control.

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. IECEx: IECEx EPS 18.0007X Ex h IIC T4…T2 Gb / Ex h IIIC T135 °C…T300 °C Db.
• 3-A Sanitary Standards Inc.: The products comply with 3-A Sanitary Standards Inc (3-A SSI) as per certificate.
• FDA: The diaphragms made of EPDM, PTFE/EPDM, Advanced PTFE/EPDM and laminate of GYLON® and EPDM comply with the Code of Federal Regulations published by the FDA.
• USP: The diaphragms are tested according to USP Class VI.
• EC Regulation 1935/2004: Suitable for use with food and beverages.

Materials

Actuator size 40…125

No.	Element	Material
1	Transparent cap	Polysulfone PSU
2	Cover	Polyphenylene sulphide PPS (standard) / Polyamide PA (on request)
3	Pilot air ports	Stainless steel 1.4305
4	Piston seal	FKM
5	Socket	Sinter metal
6	Interface	Stainless steel 1.4404
7	Diaphragm	EPDM (AD), PTFE/EPDM (EA), Advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER)

Actuator size 175 and 225

No.	Element	Material
1	Cover	Polyamide PA
2	Pilot air ports	Stainless steel 1.4305
3	Diaphragm bonnet	Stainless steel 1.4308
4	Diaphragm	EPDM (AD), PTFE/EPDM (EA), Advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER)

Dimensions

Actuator

INFO

Dimensions in mm, unless otherwise stated.

Diaphragm size 8…50

Diaphragm size 65…100

Diaphragm size	Actuator size ∅	∅ A	C	K	H
8	40 (C)	53	34	G 1/8"	111
15	50 (D)	64	39	G 1/8"	137
15	63 (E)	80	52	G 1/4"	154
20	63 (E)	80	52	G 1/4"	165
20	80 (F)	101	52	G 1/4"	186
25	63 (E)	80	52	G 1/4"	170
25	80 (F)	101	60	G 1/4"	190
40	100 (G)	127	73	G 1/4"	246
40	125 (H)	158	86	G 1/4"	284
50	100 (G)	127	73	G 1/4"	254
50	125 (H)	158	86	G 1/4"	288
65	175 (K)	211	130	G 1/4"	350
80	175 (K)	211	130	G 1/4"	350
80	225 (L)	261	155	G 1/4"	345
100	225 (L)	261	155	G 1/4"	345

T-Body with welded connection

T-Body with clamp connection

TIP

The clamp dimensions must be added to the welded connection dimensions.

Performance Specifications

Maximum static operating pressure for Control Function A

Diaphragm size	Actuator size ∅	Pilot pressure [bar]	Max operating pressure EPDM, FKM [bar]	Max operating pressure PTFE, GYLON® [bar]
8	40 (C)	5.0...7	10	10
15	50 (D)	5.0...7	10	-
15	63 (E)	5.0...7	10	10
20	63 (E)	5.5...7	10	10
20	80 (F)	5.0...7	10	10
25	80 (F)	5.5...7	10	10
40	100 (G)	5.5...7	10	9
40	125 (H)	5.5...7	10	10
50	125 (H)	5.5...7	10	10
65	175 (K)	5.0...6	10	6
80	175 (K)	5.0...6	7	4
80	225 (L)	5.0...6	10	10
100	225 (L)	5.0...6	10	7

WARNING

For low operating pressures, optional variants with reduced spring force (EC04) are recommended. Pressure data [bar]: Overpressure to atmospheric pressure. Static: When closed, the valve is pressurised on one side with the maximum operating pressure.

Installation

Installation position

Any installation position, preferably with the actuator facing up. The following installation positions are recommended for the installation of T-valve bodies in circular pipelines:

For supply of medium:

For removal of medium:

Weld the valve body into the pipeline

DANGER

Damage to the diaphragm or the actuator. The diaphragm and actuator can be damaged when welding the valve body into the pipeline. In the case of devices with a welded connection, remove the actuator and diaphragm from the valve body before installation.

Maintenance & Repair

Tightening torques for body connection

Diaphragm size	Tightening torques EPDM, FKM [Nm]	Tightening torques PTFE, GYLON® [Nm]
8	2	2.5
15	3.5	4
20	4	4.5
25	5	6
40	8	10
50	12	15
65	20	30
80	30	40
100	40	50