Statement: The key technical parameters in this document are sourced from the official technical documentation for fire butterfly valves published by Ningjin APC Industries, a leading Chinese UL/FM fire valve manufacturer. This documentation is provided as a production reference for fire valves manufactured at Ningjin APC Industries' plant and as product information for customers; for any detailed questions, please consult our professional team.
1. Made-to-Order Manufacturing & Sourcing Model
When commercial contractors, fire protection engineers, and global distributors evaluate the APC Industries HGD-381X / GD-381X Butterfly Valve Price, it is essential to understand our factory operational model. Ningjin APC Industries operates strictly as an advanced, direct manufacturer producing fire protection valves on a **made-to-order** basis. We do not maintain off-the-shelf warehouse inventory; instead, every production batch is engineered and fabricated to meet precise project specifications, nominal sizing, and regional certification requirements.
2. Key Technical Determinants of Valve Quotations
Because industrial and commercial fire protection projects vary in scope, quotations for the APC Industries HGD-381X / GD-381X Butterfly Valve Price are determined by several core engineering variables:
| Model Series | End Connection Type | Available Nominal Sizes | Key Actuation & Signal Features |
|---|---|---|---|
| GD-381X | Grooved End (ANSI/AWWA C606 Clear Waterway) | 2", 2½", 3", 4", 5", 6", 8", 10", 12" | Signal Gearbox c/w Internal Supervisory Micro-Switches |
| HGD-381X | Grooved × Flanged / Flanged × Grooved Hybrid | 2½", 3", 4", 6", 8", 10" | Signal Gearbox c/w Internal Supervisory Micro-Switches |
3. Core Engineering & Quality Compliance Baseline
Every unit factored into our project-based APC Industries HGD-381X / GD-381X Butterfly Valve Price guarantees uncompromised structural performance backed by international fire protection credentials:
- Maximum Working Pressure: 300 PSI (2.1 MPa) continuous operation
- Maximum Hydrostatic Testing Pressure: 600 PSI factory shell and seat test
- Global Certifications & Listings: Fully approved under UL, CUL, FM, VdS, CE, and CCC standards
- Material Integrity: High-strength ductile iron body and disc, EPDM rubber seat encapsulation, 416 stainless steel upper/lower shafts, and PTFE/C95400 stem bushings
4. How to Request an Accurate Factory-Direct Quotation (RFQ)
To obtain a formal project quotation for the APC Industries HGD-381X / GD-381X Butterfly Valve Price, engineering buyers and procurement agents should provide detailed project parameters to our sales engineering team, including required nominal diameters, connection standards, quantity schedules, and target delivery timelines (standard made-to-order production lead time is 6 to 9 weeks).
5. Frequently Asked Questions (FAQ)
Pricing depends on nominal pipe sizes, connection style (grooved vs. grooved-flanged hybrid), supervisory switch requirements, and custom exterior finishes.
No, Ningjin APC Industries operates purely on a made-to-order manufacturing model with standard production lead times of 6 to 9 weeks.
All quoted units include rigorous UL, CUL, FM, VdS, CE, and CCC international fire safety compliance listings.
