5-Valve Instrument Manifold -- 2x Block 2x Bleed Equalising SS316
Complete Isolation and Venting Manifold for Critical DP Transmitters
Document No.SV-DS-MNF-003
RevisionRev A
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
This datasheet covers 5-valve instrument manifolds machined from solid SS316 barstock with two block, two bleed, and one equalising valve for complete DP transmitter isolation, calibration, and venting.
Technical Specifications
| Parameter | Specification |
|---|
| Size Range | 1/2" NPT process x 1/2" NPT instrument (standard) |
| Pressure Rating | 6,000 PSI (standard), 10,000 PSI (high-pressure option) |
| Body Material | Solid SS316 barstock, one-piece machined |
| Valve Configuration | 2 block + 2 bleed + 1 equalise |
| Needle Tip | SS316 non-rotating Vee-point tip on all five valves |
| Seat Material | Integral SS316, matched-lapped |
| Temperature Range | -73°C to +538°C (graphite packing) |
| Connections | 1/2" NPT male/female process; 1/2" NPT female instrument; 1/4" NPT bleed/vent |
| Mounting | Direct mount 54 mm or remote mount with tube connections |
| Handle | SS304 knurled handwheel; colour-coded optional |
| Features | Full isolation and venting, non-rotating tip, blow-out proof stem, remote mount option |
Materials of Construction
| Component | Material |
|---|
| Body | SS316 solid barstock, one-piece machined with five integral valve chambers and internal passages |
| Needle | SS316 hardened non-rotating Vee-point tip on all five valves, matched-lapped |
| Stem | SS316 anti-blow-out stem with ACME threads on all five valves |
| Packing | PTFE V-rings (standard) or graphite braided (high temperature) |
| Gland Nut | SS316 hex gland nut with smooth threads |
| Bonnet | SS316 threaded or union bonnet for in-line packing replacement |
| Handle | SS304 knurled handwheel; colour-coded for block/bleed/equalise identification |
Testing & Inspection
| Test | Requirement |
|---|
| Test Standard | Hydrostatic 1.5x rated pressure per API 598 / MSS SP-99 |
| Certification | CE, ISO 9001, NACE MR0175 on request, SIL capable |
Applicable Standards
| Standard | Description |
|---|
| Design Standard | ASME B16.34 / MSS SP-99 |
Notes
- Five-valve manifolds are intended for critical measurement points where full isolation, venting, and equalising are required for safe transmitter maintenance.
- Remote-mount configuration uses tube fittings (Swagelok compatible); specify tube OD and wall thickness for ferrule selection.
- Bleed/vent connections are 1/4" NPT female; route vent tubing to safe disposal for toxic or high-pressure media.
- For SIS applications, specify SIL 2 or SIL 3 capable design with position monitoring switches on block valves.
- All internal passages are deburred and flushed with clean compressed air before assembly; manifold is pressure-tested as a complete assembly.
