Product Introduction
Type 3321 Globe Valves can be equipped with either electropneumatic, pneumatic or electric actuators: • Electropneumatic actuators with integrated or mounted i/p positioner (Type 3321-IP Control Valve) • Pneumatic actuators (Type 3321-PP Control Valve) • Electric actuators (Type 3321-E1 or Type 3321-E3 Control Valve) Valve body materials • Cast iron A 126 B for Class 125 • Spheroidal graphite iron A 395 for Class 150 • Cast steel A216 WCC for Class 150 or 300 • Stainless steel A351 CF8M for Class 150 or 300 • Metal or soft-seated valve plug The control valves can be optionally equipped with positioners, limit switches or contacts and resistance transmitters. Versions – Type 3321-IP Electropneumatic Globe Valve · With Type 3372 Electropneumatic Actuator, optionally with integrated positioner (120 cm² only, with plug connector, see Fig. 1) or Type 3725 Positioner (Fig. 3, Fig. 4), tight-closing function for completely venting or filling the actuator with air, reference variable 4 to 20 mA, max. 6 bar supply air, fail-safe position fail-close or fail-open, optionally with limit switch – Type 3321-PP Pneumatic Globe Valve (Fig. 2) · With Type 3371 Pneumatic Actuator with 120 cm² (up to NPS 2) or Type 3371 with 350 cm² (NPS 2½ and larger), fail-safe position fail-close or fail-open, optionally with limit switch – Type 3321-E1 Electric Globe Valve (Fig. 5) · NPS ½ to 2 with Type 5824-30 Electric Actuator for 230 V/50 Hz or 24 V/50 Hz, optionally with limit contacts, resistance transmitters, positioner
Specifications
Seat-plug seal | Metal or soft sealing |
Characteristic | Inherent characteristic |
Rangeability | 50:1 for NPS ½ to 2 · 30:1 for NPS 2½ to 4 |
Medium temperature range | 14 to 430 °F · (–10 to +220 °C) |
Application | Angle Valve, Global Valve |
Leakage class according to ANSI/FCI 70‑2 |
Metal seal: IV Soft seal: VI |
Duty type
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S1 - 100 % according to EN 60034-1
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Degree of protection
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IP 54 according to EN 60529,
IP 65 with cable glands (can be retrofitted) 1)
Suspended mounting not permitted
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Signal pressure (output)
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0 bar up to the capacity of the supply pressure · Can be limited to approx. 2.3 bar by software
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Permissible ambient temperature
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–20 to +80 °C
–25 to +80 °C with metal cable gland
The limits in the test certificates additionally apply for explosion-protected versions
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Influences
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Temperature: ≤0.15 %/10 K
Effect of vibration: ≤0.25 % up to 2000 Hz and 4 g according to IEC 770
Supply air: None
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Detailed Image
Packaging and Delivery
1.Swift delivery
For common parts, we can deliver the goods within 3 days
2.Original products
All the products we sell are from origin manufacturer. We will submit all the manufacturer documentation while we finish delivery.
3.Quality Assurance
4.Technical Support
Including inspection, repair, and maintenance, we can give all kinds of technical support.
5. Quickly response
Our staffs will keep 24h online and answer your question very quickly.