Globe Valve AT 1028B

Globe valve made of nodular iron, with flanges, PN25. With bellows that prevents the media from coming in contact with the stuffing box. Maintenance-free, external spindle thread, display device that indicates open/closed mode, non-rising steering wheel.

A shut-off valve for steam, condensate, hot water, thermal oil and media that is hazardous for health and Environment.

Dimension range	DN 15 to DN 100
PN	25
Temperature range	-10 °C to +300 ºC
Material	Ductile iron

Variations
Product information

Variations

Article number	Amount
AT 1028B15 4355801
AT 1028B20 4355802
AT 1028B25 4355803
AT 1028B32 4355804
AT 1028B40 4355805
AT 1028B50 4355806
AT 1028B65 4355807
AT 1028B80 4355808
AT 1028B100 4355809

Product information

Main facts

Dimension range	PN	Temperature range	Material
DN 15-100	25	-10 °C to +300 ºC	Ductile iron

Range of application

Shut-off valve for:
- Steam
- Condensate
- Hot water
- Thermal oil

AMA-text

PSB.5 Globe Valve
Globe valve AT 1028B..., DN.., flanged connection. Ductile iron body with stainless steel bellows.

Quality assurance

Testing is carried out in accordance to EN 12266-1. Leakage class A applies to this type of valve.

CE-marking
The valves meet the requirements in AFS 2016:1 and 2014/68/EU (Pressure Equipment Directive).

Material specification

Pos	Component	Material
1	Body	Ductile iron EN-GJS400-18-LT
2	Bonnet	Ductile iron EN-GJS400-18-LT
3	Seat	Stainless steel 1.4006
4	Cone/globe	Stainless steel 1.4021
5	Bellow	Stainless steel 1.4571

Dimensions and weight

DN	15	20	25	32	40	50	65	80	100
A	130	150	160	180	200	230	290	310	350
B	178	178	193	201	224	228	270	295	321
C	125	125	125	125	150	150	175	200	250
Weight	3,2	3,9	4,6	6,5	9,0	11	15,8	20,5	35
Dimension in mm, weight in kg.

Function and design

With bellows that prevent the fluid from coming in contact with the stuffing box. This eliminates the risk of leakage from the stuffing box.

- External stem thread
- Position indicator, open/closed
- Non-rising handwheel

Technical information

Pressure and temperature
According to DIN EN 1092-2, with the following maximum values:

Pressure and temperature

Working pressure	Working temperature max. °C
max. bar	max. °C
25	-10
25	120
24,3	150
23	200
21,8	250
20	300
17,5	350

Pressure drop

Pressure Drop
To calculate the pressure drop the following values are used:

Kvs

DN	15	20	25	32	40	50	65	80	100
K_vs	5,9	7,4	13	18	30	41	79	115	181

Accessories and options

Larger dimensions on request.
Pressure class according to PN16.

Installation

Connections
Connection flanges according to SS 335 - PN25 . Can be mounted in any position except with handwheel pointing downwards.
Vibrations in the piping system should be avoided. The system should be flushed before startup.

Maintenance and spare parts

The valve is practically maintenance free.

Marking

Manufacturer, DN, PN, CE, material and flow arrow.

How to order

AT 1028B	50
Example: AT 1028B50
Fig. No.	DN
RSK-number, see the RSK-register