DIRECT COUPLED DIAPHRAGM SEAL

DIRECT COUPLED DIAPHRAGM SEAL

Forged‑Body Seal for Pulp, Slurry & Corrosive‑Media Isolation

Overview

The DIRECT COUPLED DIAPHRAGM SEAL from AIMS Control safeguards gauges, transmitters, and switches when direct media contact would clog, corrode, or foul a sensing element. A single‑piece forged chamber and laser‑welded diaphragm form a hermetic barrier, allowing accurate pressure transmission while keeping aggressive fluids or solids at bay. Available in AISI 316L, Monel, Hastelloy C, and other exotic alloys—this seal is the ideal choice for chemical reactors, pulp‑and‑paper slurries, and offshore process skids.

Key Features & Benefits

• Rigid Forged Construction

Eliminates weld‑seam fatigue common in fabricated bodies; rated for full vacuum to 0 … 400 bar.

• Laser‑Welded Metallic Diaphragm

Provides uniform thickness and leak‑free performance, even after millions of flex cycles.

• Wide Media Compatibility

Choose AISI 316L SS for general service or upgrade to Monel / Hastelloy C for acids, chlorides, and sour gas.

• Direct or Remote Assembly

Bolt the seal directly to the instrument or use a remote capillary to decouple temperature effects and vibration.

• High‑Performance Fill Fluid

Standard Silicone DC‑200 (-40 … 205 °C) ensures rapid, linear pressure transfer; other fills (HT, food‑grade) on request.

• Optional Wetted‑Surface Protection

PTFE, PFA, or glass‑lined coatings available for sticky, polymerizing, or ultra‑corrosive media.

Why Choose This Diaphragm Seal?

1. Leak‑Proof Integrity – Laser‑welded diaphragm + forged body eliminates crevices where media can creep.
2. Custom Alloy Flexibility – Tailor wetted parts to resist pH 0–14, high‑chloride brines, or H₂S‑laden fluids.
3. Fast, Linear Response – Low‑viscosity silicone fill ensures accurate gauge or transmitter output.
4. Backed by pressure gauge manufactures in Gujrat India – Local fabrication, quick alloy changeovers, and same‑day calibration services.

Typical Applications

• Chlor‑alkali and caustic soda production lines
• Viscous slurry handling in pulp & paper mills
• Offshore wellhead chemical injection loops
• High‑purity acids in semiconductor fabs
• Hygienic / CIP lines in pharma & biotech (with FDA‑grade fill)
• Molten‑sulfur or asphalt transfer skids

Quality & Compliance

Every DIRECT COUPLED DIAPHRAGM SEAL is helium‑leak tested to 1 × 10⁻⁶ mbar‑L/s, hydro‑tested to 1.5 × design pressure, and supplied with full material traceability (EN 10204 3.1). ISO 9001 and PED‑compliant manufacturing ensures consistent performance and audit readiness.

Partner with AIMS Control

Trust instrumentation engineered by leading pressure gauge manufactures in Gujrat India. Our diaphragm seals integrate seamlessly with gauges, transmitters, and switches—extending sensor life and reducing total cost of ownership in hostile services.

Call to Action

Need to isolate your pressure instrument from aggressive or clogging media?
Request a quote for the DIRECT COUPLED DIAPHRAGM SEAL or speak with our specialists to select the right alloy, fill fluid, and assembly style for your process.