LF251 Series 2.5" Liquid Filled Pressure Gauge | Lower & Back Mount | Weiss Instruments

Product details PRODUCT DESCRIPTION The LF251 Series Liquid Filled Pressure Gauges by Weiss Instruments are designed for accurate and stable pressure measurement in demanding environments. These gauges feature a glycerine-filled case that helps reduce vibration, pulsation, and mechanical wear, ensuring longer service life and consistent performance. Constructed with a durable 304 stainless steel case and a crimped polished stainless steel ring, the LF251 Series offers excellent protection in industrial and outdoor applications. The clear acrylic window and dual-scale dial (psi & kPa) provide easy readability. Available in both lower and center back connection types, with pressure ranges from vacuum to 10,000 psi, this series is suitable for a wide range of applications including compressors, pumps, hydraulic systems, and plumbing installations. KEY FEATURES 2.5″ compact dial sizeGlycerine-filled for vibration resistance304 stainless steel casePolished stainless steel ringDual scale (psi & kPa)Clear acrylic window±1.6% accuracyAvailable in lower and back mount connectionsSuitable for high-pressure and industrial applications TECHNICAL SPECIFICATIONS Specification Details Series LF251 Brand Weiss Instruments Type Liquid Filled Pressure Gauge Dial Size 2.5″ Connection Type Lower / Center Back Connection Size 1/4″ NPT Case Material 304 Stainless Steel Ring Crimped Polished Stainless Steel Window Clear Acrylic Fill Fluid Glycerine Tube Phosphor Bronze (up to 6000 psi), 316 SS (up to 10,000 psi) Socket Brass with threaded restrictor Movement Brass Dial ABS, white with black & red markings Pointer Black anodized aluminum Accuracy ±1.6% of span Process Temperature -18°C to 60°C Ambient Temperature -18°C to 60°C ITEM NUMBERS / MODELS Code PSI Range Type 015 0–15 psi Pressure 030 0–30 psi Pressure 060 0–60 psi Pressure 100 0–100 psi Pressure 160 0–160 psi Pressure 200 0–200 psi Pressure 300 0–300 psi Pressure 400 0–400 psi Pressure 600 0–600 psi Pressure 1000 0–1000 psi Pressure 1500 0–1500 psi Pressure 2000 0–2000 psi Pressure 3000 0–3000 psi Pressure 5000 0–5000 psi Pressure 6000 0–6000 psi Pressure 10000 0–10,000 psi Pressure VAC 30″ Hg / 0 Vacuum V15 30″ Hg / 15 psi Compound V30 30″ Hg / 30 psi Compound V60 30″ Hg / 60 psi Compound V100 30″ Hg / 100 psi Compound V150 30″ Hg / 150 psi Compound V200 30″ Hg / 200 psi Compound V300 30″ Hg / 300 psi Compound APPLICATIONS General serviceCompressors & pumpsHydraulic equipmentPlumbing & heating systemsOutdoor applications FAQs Q1: What is the purpose of glycerine filling in this gauge?A: Glycerine filling reduces vibration, pulsation, and internal wear, improving accuracy and lifespan. Q2: What connection types are available?A: The LF251 Series is available in both lower mount and center back connection types. Q3: What is the maximum pressure range available?A: This series supports pressure ranges up to 10,000 psi. Q4: Is this gauge suitable for outdoor use?A: Yes, the stainless steel construction and liquid filling make it suitable for harsh and outdoor environments. Q5: Does it support dual scale readings?A: Yes, the dial includes both psi and kPa scales as standard. View More View Less