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Samson Valve 3321 Pneumatic Control Valve ANSI

Samson Valve 3321 Pneumatic Control Valve ANSI is a threaded seat globe control valve designed for light industrial applications limited to ANSI 300 pressure class ratings and less. The basic model is the pneumatic version without a positioner. There is an electro-pneumatic version that includes an integrated positioner in the actuator or an attached positioner. The last two configurations are both with electric actuators with the primary difference being the amount of force available. Samson Valve 3321 Pneumatic Control Valve ANSI is ideal for general light industrial applications where process conditions require a basic control valve to meet process requirements.

Product Features

Samson Valve 3321 Pneumatic Control Valve ANSI Ideal product for light industrial applications with flanged connections, offered with two optional Cv values per line size for flexibility to fit application type four different actuator options in order to meet available external power source type

Samson Valve 3321 Pneumatic Control Valve ANSI can be combined with the following actions:

3372-Electro-Pneumatic Actuator

special function:
Composed of two diaphragm boxes, a rolling diaphragm, and an internal spring, suitable for the connection of SAMSON 3214, 3260, and V2001 series valves, models with integrated i/p converter (rated stroke 15 mm) or directly mounted type 3725 positioner (rated stroke 15 and 30 mm)
Drive from 4 to 20 mA

3371-Pneumatic Actuator

special function:
Suitable for connection of SAMSON series V2001 valves
The actuator is mainly composed of two diaphragm boxes, a diaphragm, and an internal spring. The actuator is connected to the bonnet using a yoke.

Product Parameters

Product name Samson Valve 3321 Pneumatic Control Valve ANSI
Usage Low voltage service

Throttle service

Low temperature service

Version ANSI
Medium temperature -10 to 300°C / 14 to 572°F
Valve size NPS½ to NPS 4
Pressure Level 125 to 300 level
Supply Pneumatic

Application and After-Sales Service

Control valves are mainly used in the following areas:
1. Petroleum equipment
2. Hydropower station
3. Metallurgy
4. Ocean
5. Food and medicine
6. Rural and urban architecture
7. Rural and urban heating
8. Environmental protection
9. Gas
10. Pipeline

After-sales service

Online support and Video technical support.

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