Are you looking for premium quality high-integrity Air Interlock Valves for petroleum road tankers and API bottom loading adaptors? Engineered for fail-safe drive-away protection. Quick delivery and worldwide dispatch available.
Pioneer Industries is one of India’s leading manufacturers, stockists, and global exporters of high-integrity Air Interlock Valves. Specifically engineered for petroleum road tanker bottom loading systems, aviation refuelers, and hazardous chemical transport vehicles, our Air Interlock Valves are critical safety-mandated components installed on API bottom loading adaptors, vapor recovery collection hoods, and guard bar cabinets.
The primary function of the Air Interlock Valve is to provide automatic, fail-safe pneumatic drive-away interlock protection. When an API loading arm coupler or vapor recovery hose is connected to the vehicle, it mechanically depresses the valve’s roller plunger. This pneumatic signal exhausts or pressurizes the tanker’s spring-brake brake lock circuit, mechanically immobilizing the vehicle until all terminal transfer hoses are disconnected.
Manufactured from high-strength die-cast aluminium with passivated stainless steel plungers, Pioneer Air Interlock Valves endure the harshest road haulage and petrochemical terminal environments. Built with integrated shaft wiper seals, our valves actively exclude road grit, mud, ice, and corrosive washdown slurry from entering the internal spool chamber.
Exporting to more than 85 countries worldwide, Pioneer Industries maintains extensive ready inventories. Every valve undergoes 100% factory hydrostatic and pneumatic testing at 225 PSI (15.5 bar) and is certified for over 100,000 continuous mechanical cycles in accordance with API RP 1004 and international ADR regulations.
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Pioneer Industries Air Interlock Valves feature a universal reversible mounting configuration that seamlessly fits all industry-standard API bottom loading adaptors and vapor recovery vent hoods. The valve can be plumbed in either Normally Open (NO) or Normally Closed (NC) mode to match the vehicle fleet’s pneumatic brake interlock logic.
Equipped with specialized low-temperature Viton GLT fluorocarbon seals, Pioneer Air Interlock Valves maintain bubble-tight sealing down to -40°C (-40°F), completely eliminating seal embrittlement and phantom air leaks during severe sub-zero winter operations.
Air Interlock Valve Model AIV-025 available in 1/4″ NPT Female pneumatic ports. Max Working Pressure: 150 PSI (10.3 bar). Proof Pressure: 225 PSI (15.5 bar). Operating Temperature: -40°C to +65°C. Endurance: 100,000 Cycles. Body: Die-Cast Aluminium. Seals: Viton GLT.
Explore comprehensive engineering parameters, flow coefficients (Kv / Cv), pressure ratings, and coil voltage configurations for Pioneer Industries Air Interlock Valves. Manufactured and 100% tested in accordance with international automation standards.
| Model / Part No. | Port Size | Valve Function | Operating Pressure | Body Material | Actuator Type | Net Weight |
|---|---|---|---|---|---|---|
| AIV-025-NO-AL | 1/4" NPT (F) | 3/2 Normally Open | 0 - 150 PSI (10.3 bar) | Die-Cast Aluminium | Spring Roller Plunger | 0.42 kg |
| AIV-025-NC-AL | 1/4" NPT (F) | 3/2 Normally Closed | 0 - 150 PSI (10.3 bar) | Die-Cast Aluminium | Spring Roller Plunger | 0.42 kg |
| AIV-025-ADJ-AL | 1/4" NPT (F) | 3/2 Field Configurable | 0 - 150 PSI (10.3 bar) | Die-Cast Aluminium | Adjustable Contact Arm | 0.46 kg |
| AIV-025-HD-SS | 1/4" NPT (F) | 3/2 Universal Ported | 0 - 200 PSI (13.8 bar) | CF8M Stainless Steel | Heavy Roller Arm | 0.78 kg |
| AIV-025-DP-AL | 1/4" NPT (F) | Dual Pilot Interlock | 0 - 150 PSI (10.3 bar) | Hard Anodized AL | Protected Plunger Guard | 0.48 kg |
| Component Part | Standard Construction | Alternative / High-Spec Alloys | Service Benefits |
|---|---|---|---|
| Valve Body & Cap | A380 Die-Cast Aluminium Alloy | Hard Anodized AL / ASTM A351 CF8M SS316 | Lightweight road axle weight reduction with superior salt-spray resistance. |
| Internal Spool & Plunger | ASTM A276 Grade 304 Stainless Steel | Grade 316 Stainless with Hard Chrome Plate | Resists abrasive mechanical wear from repeated API coupler latch strikes. |
| Primary Elastomeric Seals | Low-Temperature Viton (FKM GLT) | High-Fluorine Viton B / Chemraz FFKM | Zero swelling in gasoline, avgas, diesel, bio-diesel blends, and jet fuel. |
| Wiper Seal & Dust Boot | UV-Stabilized Polyurethane / Nitrile | Silicone Compound (-55°C rated) | Prevents road salt, slurry, and rainwash from entering internal spool bore. |
| Internal Return Spring | 17-7 PH Stainless Steel | Inconel X-750 Spring Alloy | Guarantees 100,000+ continuous return cycles without spring fatigue. |
| Component | Standard Specification & Material | Available Options & Grades |
|---|---|---|
| Valve Body | Hard Anodized Aluminium / Forged Brass CW617N / SS 316 | Anodized Aluminium 6061-T6 Forged Brass IS 319 / CW617N Stainless Steel SS 304 Stainless Steel SS 316 / 316L |
| Plunger & Core Tube | Magnetic Stainless Steel AISI 430FR / SS 304 Tube | Corrosion Resistant 430FR Copper Shading Ring Silver Shading Ring (Special) |
| Seals & Diaphragms | High-Grade Nitrile Rubber (NBR) / Viton (FKM) / PTFE | NBR (-10°C to +80°C) FKM / Viton (-10°C to +150°C) PTFE / Teflon (-20°C to +180°C) EPDM for Steam / Hot Water |
| Solenoid Coil | Epoxy Moulded Waterproof Continuous Duty (Class H / Class F) | 12V DC / 24V DC (6.5W) 24V AC / 110V AC / 230V AC IP65 DIN 43650 Form A/B Flameproof Ex d IIC T6 |
Custom Engineering Available: Looking for custom port configurations, high-pressure ratings, or specific cleanroom options? Pioneer Industries manufactures tailor-made Air Interlock Valves to exact project specifications. Contact our Mumbai technical team at +91 9821023876 or email inquiry@pioneerfitting.com.
Air Interlock Valves engineered by Pioneer Industries delivers precise, fail-safe automation performance across demanding industrial sectors:
Mounted directly onto 4" API adaptors to automatically trigger vehicle brake lock when loading arm couplers are attached.
Installed on tanker vapor collection line adaptors, ensuring vapor hoses are engaged before tanker bottom valves can open.
Fitted inside side protective guard bars, preventing truck movement while discharge cabinet doors or guard gates remain lowered.
Provides pneumatic deadman interlock on airport apron refueling dispensers and aviation fuel bowsers.
Incorporated into railway tank wagon discharge headers for automatic pneumatic immobilization during rack transfer.
Controls emergency foot valve pilot air circuits, halting toxic liquid transfer if cabinet doors are jarred open.
Pioneer Industries’ Air Interlock Valves are widely deployed in critical automated processes including:
Technical guidance, sizing insights, and engineering answers for instrumentation engineers, automation system integrators, and procurement specialists sourcing Solenoid Valves from Pioneer Industries.
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