Our standard materials include Stainless Steel (ASTM A351 CF8M / SS316L) for general corrosive resistance, Duplex Stainless Steel (ASTM A890 4A / 2205) for high resistance to chloride stress corrosion cracking (common in seawater and chemical processing), and special alloys like Hastelloy C276 for extremely corrosive media like acids. The choice depends on a chemical compatibility analysis of your process fluid, temperature, and pressure. Our team can provide a free consultation to select the optimal material.

This is dependent on the specific model, material, and pressure class. For example, an ANSI Class 600 BPW can handle significantly higher pressures than a Class 150. Generally, our range covers from -40°C to +250°C. For specific pressure-temperature ratings, please refer to the detailed technical datasheet for the specific ANSI/ASME B16.34 standard, which we provide for every product.

Sizing should not be based on pipe size alone. The correct method involves calculating the required Flow Coefficient (Cv). You need to provide us with your process data: flow rate, fluid type, specific gravity, inlet pressure, and desired outlet pressure. Our engineers will use this data to calculate the required Cv and recommend a BPW size that ensures stable control without being oversized (which is inefficient) or undersized (which can cause choking).

Yes, we offer models that are fully compliant with NACE MR0175/ISO 15156 for applications involving sour gas (H₂S). This requires specific material selection (like Duplex or certain grades of stainless steel) and heat treatment protocols, which we control and document stringently. Please specify this requirement when requesting a quote.

We provide a comprehensive 24-month warranty from the date of shipping, covering any defects in materials and workmanship. Standard models (up to DN200) in common materials are typically in stock and can be shipped within 48-72 hours. Custom-engineered solutions or those with special alloy materials have a lead time of 4-8 weeks, which will be confirmed at the time of order.

Our BPW systems are designed for low maintenance. We recommend periodic inspection (annually for standard service, semi-annually for severe service) for any signs of external corrosion or leakage. The robust design means internal components like seals have a very long life. We provide a detailed Installation, Operation, and Maintenance (IOM) manual with every shipment, and seal kits are readily available.

Absolutely. All our BPW units are designed with an ISO 5211 standard mounting pad. This allows for the easy and direct mounting of a wide range of pneumatic or electric actuators. We can supply the unit with a pre-installed and tested actuator package, complete with positioners and solenoid valves, to meet your exact automation requirements.