Products
Gate valve
General service, oils, petroleum and gas, steam and fluids of different viscosities.

Gate valve · NCM 8481.80.93
- ¼" to 2"
- Class 800 · 1500 · 2500
- Bolted or welded bonnet
- Reduced or full port
- OS&Y · rising stem
- Solid wedge
Forged steel, outside screw and yoke (OS&Y), rising stem and solid wedge. Available with bolted or welded bonnet, reduced or full port, and threaded, socket weld, butt weld or flanged ends.
The range also covers extended body, bellowseal and extended bonnet versions for cryogenic service. Type 5 in the first position of the code identifies the whole gate valve family.
Specification
- Sizes¼" to 2" (DN 8 to DN 50), depending on model
- Pressure class800, 1500 and 2500
- Body and bonnetA-105 · A-350 LF2 cl. 1 · A-182 F-5, F-9, F-11 cl. 2 and F-316L
- TrimTrim 1, 5, 8, 9, 10, 12 and 16 per API 602
- GasketSpiral wound 316/graphite, 316/PTFE or Monel/PTFE; copper or AISI 316 flat washer
- PackingPTFE braided, PTFE “V” ring type, flexible graphite or special
- End typeThreaded NPT or BSPT, SW, BW, flanged RF or RJ, and combinations
- Design and manufactureAPI 602 · ASME B16.34
- TestingAPI 598 — 100 % of production
- OptionsFull port (F), reinforced extended end (E), locking device (T), live-loading packing (V)
- HS code8481.80.93
Models
Catalogue configurations
Each model number corresponds to a family; the last digit indicates the size. Dimension and weight tables for each are in the technical catalogue.
- 531 to 538
- Bolted bonnet — OS&Y
- Reduced port
- ¼" to 2" — Class 800
- 533F to 537F
- Bolted bonnet — OS&Y
- Full port
- ½" to 1½" — Class 800
- 521 to 528
- Welded bonnet — OS&Y
- Reduced port
- ¼" to 2" — Class 800
- 523F to 527F
- Welded bonnet — OS&Y
- Full port
- ½" to 1½" — Class 800
- 513 to 518
- Welded bonnet — OS&Y
- Extended body, reduced port
- ½" to 2" — Class 800
- 583 to 588
- Welded bonnet — OS&Y
- Bellowseal, reduced port
- ½" to 2" — Class 800
- 583F to 587F
- Welded bonnet — OS&Y
- Bellowseal, full port
- ½" to 1½" — Class 800
- 593 to 598
- Extended bonnet — OS&Y
- Cryogenic service, reduced port
- ½" to 2" — Class 800
- 593F to 597F
- Extended bonnet — OS&Y
- Cryogenic service, full port
- ½" to 1½" — Class 800
- 553 to 557
- Bolted bonnet — OS&Y
- Reduced port
- ½" to 1½" — Class 1500
- 563 to 567
- Welded bonnet — OS&Y
- Reduced port
- ½" to 1½" — Class 1500
- 573 to 575
- Welded bonnet — OS&Y
- Reduced port
- ½" to 1" — Class 2500
Designation
A code example
534-CXO-G5-N8F
Gate valve Ø ¾", bolted bonnet class 800, body and bonnet ASTM A-105 steel, trim Gr. 316, spiral wound AISI 316/graphite gasket, flexible graphite packing, NPT threaded ends, full port.
The nine positions of the code define type, size, body and bonnet material, trim material, gasket, packing, end type, class and additional specifications.
Other lines
We also manufacture
Globe valve
General service, liquids, vapours and gases. Throttling and shut-off. NCM 8481.80.94 See details →
Needle valve
General service, liquids, vapours and gases. Instrumentation and high pressure. NCM 8481.80.979 See details →
Check valve
Oil, petroleum, steam and liquid fluids of different viscosities. Not suitable for dry gas service. NCM 8481.30.00 See details →Engineering department
Need a configuration that is not in the catalogue?
Given the large number of possible combinations, our engineering department is at your disposal to advise on selection and even to adapt the design to your requirements when the application calls for it.