Piggable Valve
A valve (usually ball or gate) designed with a full-bore opening and geometry that allows an inspection or cleaning pig to pass through without obstruction. Required on pig-launcher/receiver sections of oil and gas pipelines. Must be full-bore and have no body cavities that trap the pig.
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Frequently Asked Questions
What is Piggable Valve?
A valve (usually ball or gate) designed with a full-bore opening and geometry that allows an inspection or cleaning pig to pass through without obstruction. Required on pig-launcher/receiver sections of oil and gas pipelines. Must be full-bore and have no body cavities that trap the pig.
How does Piggable Valve affect valve material and design selection?
A valve (usually ball or gate) designed with a full-bore opening and geometry that allows an inspection or cleaning pig to pass through without obstruction. Valve material selection must account for this service condition at every component: body, bonnet, trim (seats, disc/ball/gate, stem), packing, and bolting. Reference ASME B16.34 for pressure-temperature limits by material group, and NACE MR0175 for sour service material restrictions. Vajra Industrial Solutions provides materials-of-construction (MOC) recommendations based on your process datasheet.
Which valve certifications are required for Piggable Valve service?
Service-specific certifications depend on the application: fire-safe testing to API 607 for hydrocarbon service, cryogenic testing per BS 6364 for LNG service, fugitive emission certification to ISO 15848-1 for LDAR compliance, NACE MR0175 compliance for sour service, and SIL certification per IEC 61508/61511 for safety-critical applications. Vajra Industrial Solutions supplies fully certified valve packages with all required documentation.
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