The 2-Valve Instrument Manifold – Direct Mount (Non-Flanged Transmitter) is a block-type manifold designed for direct installation on differential pressure transmitters without flange connection.
It integrates two isolation valves within a compact body to control the high-pressure and low-pressure impulse lines of the transmitter.
The manifold connects to the process through 1/2 NPT threaded ports and mounts directly to the transmitter interface, forming a compact impulse line assembly without additional tubing adapters.
A 1/4 NPT vent/test port is provided for pressure release, calibration, or test connection.
The structure is specifically designed for coplanar or similar non-flanged pressure transmitters, enabling stable mechanical installation and reliable pressure sealing between the process line and the instrument.
The integrated block design reduces connection points and improves installation integrity in pressure measurement systems.

| Non. | Composant | Acier inoxydable 316 (nuance / spécification ASTM) | Alliage C-276 (nuance de matériau / spécification ASTM) |
| 1 | Poignée | Alliage d'aluminium | Alliage d'aluminium |
| 2 | Vis de blocage | Acier inoxydable 304 | Acier inoxydable 304 |
| 3 | Presse-étoupe | Acier inoxydable 304 / A479 | Acier inoxydable 304 / A479 |
| 4 | Tige de soupape supérieure | Acier inoxydable 316 / A479 | Acier inoxydable 304 / A479 |
| 5 | Écrou de blocage | Acier inoxydable | Acier inoxydable |
| 6 | Bonnet | Acier inoxydable 316 / A479 | Alliage C-276 / B574 |
| 7 | Bague de presse-étoupe | Acier inoxydable 316 / A479 | Acier inoxydable 316 / A479 |
| 8 | Emballage | PTFE ou graphite | PTFE ou graphite |
| 9 | Goupille rainurée | Acier inoxydable | Acier inoxydable |
| 10 | Tige de soupape inférieure | Acier inoxydable 316 trempé / A479 | Alliage C-276 / B574 |
| 11 | Corps de vanne | Acier inoxydable 316 / A479 ; Acier inoxydable 316 / A182 | Alliage C-276 / B564 |
| — | Lubrifiant | À base de disulfure de molybdène | À base de disulfure de molybdène |

Caractéristiques et fonctions
- Two isolation valves for high- and low-pressure impulse lines
- Direct mounting to compact pressure transmitters
- Back-seat sealing in fully open position
- Non-rotating hardened lower stem design
- Screw-locked handle for vibration resistance
- Integrated vent/test port for calibration
- Thread lubrication isolated from process media
- Compact block-type manifold structure
Avantages du produit
Improved sealing safety
Back-seat structure protects packing and prevents leakage during full opening.
Reduced stem wear
Non-rotating lower stem minimizes friction and extends service life.
Stable operation
Screw-locked handle prevents loosening under vibration or pulsation conditions.
Contamination-free sealing
Stem thread lubrication isolated from process medium ensures clean pressure transmission.
Compact installation
Direct mount structure reduces tubing connections and leak points.

This type of valve manifold is specially designed for Rosemount “coplanar” pressure transmitters (including models 3051C, 3051S, 2024 and 3095).
The standard configuration of each valve manifold of this model includes four 7/16″ UNF × 2.08″ high-strength bolts. It can be directly mounted to the transmitter.
Les avantages de notre entreprise
- Plus de 16 ans d'expérience dans la R&D et la fabrication d'équipements d'essai de pression et de surpression pneumatique
- Capacité de production annuelle supérieure à 1000+ ensembles d'équipements
- Plus de 8000 clients dans le monde lui font confiance
- Entreprise nationale de haute technologie avec plus de 28 brevets
- Équipe d'ingénieurs ayant plus de 10 ans d'expérience dans l'industrie
- Membre de l'Association chinoise de l'industrie des équipements spéciaux
- Membre du comité de normalisation de l'instrumentation nationale
- Système de gestion de la qualité certifié ISO 9001
- Produits certifiés CE pour une conformité internationale
- Concentré sur le marché de l'instrumentation industrielle de milieu et de haut de gamme