Products
Check valve
Oil, petroleum, steam and liquid fluids of different viscosities. Not suitable for dry gas service.
Check valve · NCM 8481.30.00
- ¼" to 2"
- Class 800 · 1500 · 2500
- Vertical ball type
- Horizontal ball or piston type
- Swing type
- Optional spring
Three configurations according to pipe layout and service: vertical ball type, with integral or renewable seat; horizontal ball or piston type, with welded or bolted bonnet; and swing type, with bolted bonnet in reduced or full port.
Horizontal ball and piston versions can be ordered with spring (suffix R) and the horizontal piston type with O-Ring (suffix O). The vertical type accepts a renewable seat (suffix N).
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
- 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 on swing type (F), with spring (R), with O-Ring (O), renewable seat on vertical type (N)
- LimitationNot suitable for dry gas service
- HS code8481.30.00
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.
- 111 to 118
- Vertical ball type
- Integral or renewable seat
- ¼" to 2" — Class 800
- 733 to 738
- Swing type — bolted bonnet
- Reduced port
- ½" to 2" — Class 800
- 733F to 737F
- Swing type — bolted bonnet
- Full port
- ½" to 2" — Class 800
- 753 to 757
- Swing type — bolted bonnet
- Reduced port
- ½" to 1½" — Class 1500
- 221 to 228 · 321 to 328
- Horizontal ball / piston type
- Welded bonnet
- ¼" to 2" — Class 800
- 231 to 238 · 331 to 338
- Horizontal ball / piston type
- Bolted bonnet
- ¼" to 2" — Class 800
- 253 to 257 · 353 to 357
- Horizontal ball / piston type
- Bolted bonnet
- ½" to 1½" — Class 1500
- 263 to 267 · 363 to 367
- Horizontal ball / piston type
- Welded bonnet
- ½" to 1½" — Class 1500
- 273 to 275 · 373 to 375
- Horizontal ball / piston type
- Welded bonnet
- ½" to 1" — Class 2500
Designation
A code example
335-CXO-G5-W8R
Horizontal piston check valve Ø 1", bolted bonnet class 800, body and bonnet ASTM A-105 steel, trim Gr. 316, spiral wound AISI 316/graphite gasket, flexible graphite packing, socket weld ends, with spring.
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
Gate valve
General service, oils, petroleum and gas, steam and fluids of different viscosities. NCM 8481.80.93 See details →
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 →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.