SEVERE SERVICE VALVESFOR MARINE APPLICATIONSZero Travel 1 trim, AC trims,
valves with perforated plugs

SOME OF OUR REFERENCES

SAMSON – A name recognized worldwide as a synonym for high-quality work, entrepreneurial spirit, and innovative strength. Our field of expertise spans the entire range of
instrumentation and controls. SAMSON supplies high-quality control valves for marine
applications. The fields of application range from ballast water systems to highly complex
applications for regasification skids on board ships and fuel gas supply systems. The tablebelow contains a list of hull identification numbers in which SAMSON control valves areinstalled.

Shipyard

Hull identification number

SAMSUNG Heavy Industries

2023

Hyundai MIPO Dockyard, Korea

8166, 8167, H2449, H2450, H2451, H8159, H8160, H8161, H8184, H8185

Hudong-Zhonghua Shipbuilding

H1663A, H1664A

CSSC Jiangnan Shipyard

H2535, H2536, H2561, H2562, H2563, H2564, H2573

Hyundai Heavy Industries Co. Ltd

H2708, H2709, H2710

WISON Offshore & Marine Ltd

M12028COSCO Shipyard Group Co., Ltd.

NE212, NE213

Sinopacific Offshore & Engineering Co. Ltd

S1015, S1016, S1017, S1018, S1019, S1020, S1024, S1025, S1026, S1027

STX Offshore & Shipbuilding Co. Ltd

S4031, S4032, S4080

Nantong COSCO KHI Ship Engineering

NE212, NE213

Dingheng (Jiangsu)

AD0015

Kawasaki Heavy Industries

KHI 22N1709

Imabari

H8177, H8188

Hanjin Heavy Industries

SN00268

ZT-1 – ZERO TRAVEL 1 TRIM

The Zero Travel 1 trim is intended for a single-stage letdown in the FTC (flowto-close) direction of flow. It is suitable for liquids, two-phase flows, or gases.
The benefit of the trim is that a single-stage letdown at differential pressures
can be achieved under certain conditions. Typical applications include: Pressure letdown and critical steam applications.

Zero Travel 1 trim
Suitable forType 3251 · Type 3256

Valve size

DN 50 to 80 · NPS 2 to 3

Pressure rating

PN 16 to 400 · Class 150 to 2500

KV coefficients · CV coefficients

0.16 to 1.3 · 0.2 to 1.5

Temperature range(depending on the valve bonnet)–196 to +550 °C · –325 to +1022 °F

Direction of flow

FTC

Characteristic

Equal percentage · LinearStellite® 6BMaterials (seat and plug)1.4401/1.4404 with Stellite® facing316/316L with Stellite® facing
1.4006 with Stellite® facing · 410 T

AC TRIMS

The main task of AC trims is to prevent cavitation. Additionally, they increase
the operational reliability of the valve used and the overall availability of theplant. The double guiding of the plug by the seat and body allow standard
SAMSON globe and angle valves to be operated with little vibration. Thanks
to the modular design of the SAMSON valves, AC trims can easily be retrofitted. In part, low-cavitation operation can considerably reduce the soundpressure level in the valve and prevent mechanical vibration. As a result, erosion on the surfaces of the internal parts can be avoided, which considerably
extends the valve’s
service life. The cost incurred throughout the entire product life cycle is reduced, not least because unscheduled plant shutdowns are avoided.

AC Trims

AC-1

AC-3

AC-5

Suitable for

Series 240 and 250

Series 250

Series 250

Valve size

DN 50 to 300
NPS 2 to 12

DN 15 to 300
NPS ½ to 12

DN 25 to 200
NPS 1 to 8

Pressure rating

PN 16 to 160Class 150 to 900

PN 40 to 400
Class 300 to 2500

PN 40 to 400
Class 300 to 2500

KV coefficients
CV coefficients

22 to 1500
26 to 1150

0.25 to 160
0.3 to 190

0.4 to 63
0.5 to 75

Temperature range–10 to +220 °C · 14 to 428 °F

Direction of flow

FTO

Characteristic

Equal percentage

Equal percentage · Linear

Materials (seat and plug)

1.4006, 1.4301, 1.4404 *

1.4006, 1.4301, 1.4112, .4404 ** Optional Stellite® facing

1.4006, 1.4301, 1.4112, .4404 *VALVES WITH PERFORATED PLUGS

The perforated plug is mainly used for valves insteam appli­
cations, particularly for operation in
the wet steam region.
Additional fields of application include the controlof two-phase medium flow, liquid media which vaporize on the outlet side (flashing valves) or emergency relief valves (blow-off valves) involving gas
relief in which flow velocities lower than 0.3 Machcannot be kept.

Perforated plug
Suitable forType 3241

Valve size

DN 25 to 500
NPS 1 to 20

Pressure rating

PN 16 to 400
Class 125 to 2500

KV coefficients
CV coefficients*Type 3248

Type 3251

Type 3254

Type 3256

4 to 1300
5 to 1500

4 to 1300
5 to 1500

4 to 3200
5 to 3700

63 to 3200
75 to 3700

4 to 1240
5 to 1440

Equal percentage 4 to 1000
characteristic:
5 to 1150

4 to 1000
5 to 1150

4 to 2500
5 to 2900

54 to 2500
62 to 2900

4 to 950
5 to 1100

Linearcharacteristic:

Temperature range (depending on
the valve bonnet)–196 to +450 °C–325 to +842 °F–273 to +220 °C–459 to +428 °C–196 to +550 °C–325 to +1022 °F–196 to +550 °C–325 to +1022 °F–196 to +550 °C–325 to +1022 °F

Standard direction of flow

FTOFTOFTOFTOFTCCharacteristic

Equal percentage · LinearMaterials (seat and plug)

Selection depending on application* Values for standard direction of flow and versions without flow divider

SAMSON AT A GLANCE

STAFF

PRODUCTION SITES– Worldwide 4,500– Europe 3,600– Asia 600– Americas 200– Frankfurt am Main, Germany 1,900– SAMSON Germany, Frankfurt, established in 1916
Total plot and production area: 150,000 m²– Chemicals and petrochemicals– Food and beverages– Pharmaceuticals and biotechnology– Oil and gas– Liquefied Natural Gas (LNG)– Marine equipment– Power and energy– Industrial gases– Cryogenic applications– District energy and building automation– Metallurgy and mining– Pulp and paper– Water technology– Other industries

PRODUCTS– Valves– Self-operated regulators– Actuators– Positioners and valve accessories– Signal converters– Controllers and automation systems– Sensors and thermostats– Digital solutions

SALES SITES– More than 50 subsidiaries
in over 40 countries– More than 200 representatives– SAMSON Turkey, Istanbul established in 1984
Total plot and production area: 11,100 m²– SAMSON USA, Baytown, TX, established in 1992
Total plot and production area: 20,000 m²– SAMSON China, Beijing, established in 1998
Total plot and production area: 47,000 m²– SAMSON India, Pune district, established in 1999
Total plot and production area: 28,000 m²– SAMSON Russia, Rostov-on-Don, established in 2015
Total plot and production area: 24,000 m²– SAMSON AIR TORQUE, Bergamo, Italy
Total plot and production area: 27,000 m²– SAMSON CERA SYSTEM, Hermsdorf, Germany
Total plot and production area: 14,700 m²– SAMSON KT-ELEKTRONIK, Berlin, Germany
Total plot and production area: 1,100 m²– SAMSON LEUSCH, Neuss, Germany
Total plot and production area: 18,400 m²– SAMSON PFEIFFER, Kempen, Germany
Total plot and production area: 20,300 m²– SAMSON RINGO, Zaragoza, Spain
Total plot and production area: 19,000 m²– SAMSON SED, Bad Rappenau, Germany
Total plot and production area: 10,400 m²– SAMSON STARLINE, Bergamo, Italy
Total plot and production area: 27,000 m²– SAMSON VDH PRODUCTS, the Netherlands
Total plot and production area: 12,000 m²– SAMSON VETEC, Speyer, Germany
Total plot and production area: 27,100 m²

SAMSON AKTIENGESELLSCHAFT
Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
E-mail: samson@samsongroup.com
Internet: www.samsongroup.com

2023-01 · WA 355 EN

INDUSTRIES AND APPLICATIONS– SAMSON France, Lyon, established in 1962
Total plot and production area: 23,400 m²