NLB by-pass valves give operators precise, reliable control over pump pressure with a simple turn of the T-bar handle—much like adjusting a household faucet, but engineered for demanding high-pressure environments. Designed for smooth, consistent performance, each valve is hydraulically cushioned to ensure gradual pressure changes that protect both the operator and the equipment.
Built for long service life, every valve housing and all major components are precision-machined from rugged stainless steel to withstand years of heavy use. A full range of models is available to cover all common operating pressures, making it easy to match the right valve to your pump system. For applications that require automated pressure adjustment, air-assisted versions (identified by an “A” in the part number) provide enhanced control and responsiveness.
NLB also offers convenient conversion kits that allow older pump units to be updated to accept newer by-pass valves, extending equipment life and improving performance without requiring a full system replacement.
Durable, versatile, and easy to service in the field, NLB by-pass valves deliver the dependable pressure control that operators rely on every day.
NLB by-pass valves can be retrofitted to older NLB pump units. Our convenient conversion kits include everything you need.
$1.00 By-Pass Valves quantity Add to Quote
NLB’s high-pressure, heavy-duty gauges are oil-filled and hermetically sealed for reliable, long-lasting performance.
Rupture discs provide over-pressure protection by safely relieving excess system pressure above the unit’s maximum rating.
NLB Snubbers absorb the system pressure pulses that can cause gauge fluctuations
Have Questions?
At NLB, we're dedicated to assisting you. If you're uncertain about which product is best for your application, our team is ready to help you find the perfect solution. If we need to customize a product to fit your specific needs, we're prepared to do so! Simply give us a call or fill out the form, and one of our experts will be in touch with you shortly.
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