If you’re managing industrial equipment, water treatment plants, or sanitary facilities like dairies or breweries, replacing a pneumatic butterfly valve is a critical maintenance task. These valves control fluid flow with precision—from water and chemicals to food-grade liquids—and their replacement cost depends on size, material, and brand. Below, we break down typical price ranges, key factors affecting costs, and why Eagle’s sanitary stainless steel pneumatic butterfly valves offer unmatched value for hygiene-critical industries.
Average Pneumatic Butterfly Valve Replacement Cost: $300–$1,500+
The total cost to replace a pneumatic butterfly valve includes two parts: the valve itself and installation labor. Here’s a breakdown:
- Valve Only: $200–$1,200 (varies by size, material, and certification).
- Installation: $100–$300 (1–2 hours for a professional plumber/technician).
Example: A 3-inch stainless steel pneumatic butterfly valve for a brewery might cost $650, plus $150 installation—total $800.

Key Factors That Affect Replacement Cost
1. Valve Size
Larger valves cost more due to more materials and engineering. Common sizes and price ranges:
- 2-inch: $200–$500
- 3-inch: $350–$800
- 4-inch: $500–$1,200
2. Material: Standard vs. Sanitary/Stainless Steel
- Cast Iron/Aluminum: For general industrial use (e.g., water treatment). Price: $200–$600.
- Stainless Steel (304/316): Ideal for sanitary applications (food, pharma, dairy) or corrosive environments. Resists rust and bacteria buildup. Price: $400–$1,200.
3. Certifications for Hygiene-Critical Industries
Valves for food, beverage, or pharmaceutical use require certifications like FDA, 3A, or EHEDG, ensuring smooth, crevice-free surfaces that prevent contamination. These certifications add 10–30% to the cost but are non-negotiable for compliance.

Eagle Sanitary Pneumatic Butterfly Valves: $506–$850 for Premium Quality
For businesses prioritizing hygiene, durability, and cost-efficiency, Eagle’s sanitary stainless steel pneumatic butterfly valves stand out. Here’s why they’re worth the investment:
• Price Range: $506–$850
Eagle’s 2–4 inch sanitary valves (316L stainless steel, FDA/3A certified) fit most mid-sized sanitary systems, costing 30–50% less than premium European brands while meeting the same strict standards.
• Built for Sanitary Settings
- 316L Stainless Steel Body: Resists corrosion from acids, cleaning agents, and saltwater.
- Lug-Style Design: Easy to install and replace without disconnecting pipes.
- Pneumatic Actuator: Fast, reliable operation (0–90° rotation in 2–5 seconds) for automated systems.
Perfect for: Dairy processing lines, craft breweries, cosmetic manufacturing, and pharmaceutical filling systems.
• Why Choose Eagle Over Generic Brands?
- Certified Quality: Every valve undergoes pressure testing and meets FDA 21 CFR 177.2600 for food contact.
- Longevity: Stainless steel construction lasts 10+ years with minimal maintenance (vs. 3–5 years for cast iron).
- Direct Pricing: No middlemen—Eagle sells factory-direct, passing savings to customers.
When to Replace vs. Repair
In most cases, replacement is better than repair if:
- The valve is over 5 years old (stainless steel) or 3 years old (cast iron).
- Leaks persist after seal replacement.
- The valve fails hygiene inspections (e.g., pitting in stainless steel).
Final Thoughts
Replacing a pneumatic butterfly valve costs $300–$1,500+, with sanitary stainless steel models at the higher end. For hygiene-critical industries, Eagle’s $506–$850 sanitary valves offer the best balance of quality, compliance, and affordability. Investing in a certified stainless steel valve avoids costly downtime from leaks or failed inspections—ultimately saving you money in the long run.