Medium Pressure Needle Valves (Pressures to 1550 Bar)
Maximator medium pressure needle valves >> Pressures to 22,500 psi (1,550 bar) with metal to metal seats have a high level of safety and reliability under adverse operating conditions. These valves may be used both with gases and liquids.
General Information
Part Number System
General Information
- Pressures to 22,500 psi (1,550 bar)
- MAXIMATOR medium pressure valves with metal to metal seats have a high level of safety and reliability under adverse operating conditions.
- These valves may be used for gases and liquids
- A special feature is the non-rotating stem which ensures a long life and thus a high reliability of the valve.
- Traceability is ensured through extensively documented data (batch number, max. pressure, material number, type designation).
- All Medium pressure valves include glands and collars.
Technical data:
| Body material | 316 L (1.4404) |
| Stem material | 17 – 4 PH (1.4542) |
| Medium | cf. Medium compatibility guide |
| Temperature | – 50° C up to +230° C |
| Sealing | PTFE + Carbon |
| Connections | 4MF, 6MF, 9MF, 12MF, 16MF |
| Orifice | 0,11″ – 0,56″ (2,7 – 14,3 mm) |
Special Features
- High-quality valve body – 1.4404 (316 L)
- Relief bore for absolute safety
- Six different valve designs
- Non-rotating stem
Special Designs
- Elongation for valve handles
- Extreme temperatures
- Special materials
Part Number System
| 21V Valves Series |
4M O.D. Tube Size |
07 Stem Type |
1 Body Pattern |
Options |
|---|---|---|---|---|
| 21V | 4M-1/4″ | 07-VEE Stem | 1-two-way straight | Extreme
temperature option, see information below. |
| 6M-3/8″ | 08-REGULATING stem* | 2-two-way angle | ||
| 9M-9/16″ | 87-VEE stem with replaceable seat | 3-three-way, two on pressure | ||
| 12M-3/4″ | 88-REGULATING stem with replaceable seat* | 4-three-way, one on pressure | ||
| 16M-1″ | 5-three-way, two stem manifold |
Typical catalog number: 21V4M071
Options for medium pressure valves:
Special Designs for Extreme Temperatures
Standard valves are supplied with Teflon/Carbon packing and may be operated to 450°F (230°C).
High temperature packing and/ or extended stuffing box are available for service from -423°F to 1200°F (-252°C to 650°C) by adding the following suffixes to the catolog order number.
- TG– standard valve with teflon glass packing to 600°F (315°C)
- GY- standard valve with graphite braided yarn packing to 800°F (425°C)
- HT- extended stuffing box valve with graphite braided yarn packing to 1200°F (650°C)
- B- standard valve with cryogenic trim materials and Teflon packing to -100°F (-73°C)
- LT- extended stuffing box valve with Teflon packing and cryogenic trim materials -423°F (-252°C)
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