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	<title>QB Knife Gate Valve Archives - Major Valves</title>
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	<title>QB Knife Gate Valve Archives - Major Valves</title>
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		<title>UNI-FLO QB KNIFE GATE VALVE</title>
		<link>https://majorvalves.co.za/shop/uni-flo-qb-knife-gate-valve/</link>
		
		<dc:creator><![CDATA[zunaid]]></dc:creator>
		<pubDate>Tue, 21 Apr 2026 06:22:19 +0000</pubDate>
				<guid isPermaLink="false">https://majorvalves.co.za/?post_type=product&#038;p=2283</guid>

					<description><![CDATA[<div style="margin: 15px 0">
<table style="width: 100%;min-width: 320px;border-collapse: collapse;font-size: 13px">
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<tr style="background-color: #f8f9fa;border-bottom: 2px solid #e9ecef;text-align: left">
<th style="padding: 8px 10px;color: #333;width: 35%">Feature</th>
<th style="padding: 8px 10px;color: #333">Detail</th>
</tr>
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<tbody>
<tr style="border-bottom: 1px solid #f1f1f1">
<td style="padding: 8px 10px;font-weight: 600">Sealing</td>
<td style="padding: 8px 10px">Bi-directional sealing with dual elastomer sleeves</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1;background-color: #fafafa">
<td style="padding: 8px 10px;font-weight: 600">Flow Design</td>
<td style="padding: 8px 10px">Full bore unrestricted flow design</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1">
<td style="padding: 8px 10px;font-weight: 600">Slurry Handling</td>
<td style="padding: 8px 10px">No cavities or grooves to prevent slurry build-up</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1;background-color: #fafafa">
<td style="padding: 8px 10px;font-weight: 600">Body</td>
<td style="padding: 8px 10px">Semi-lugged wafer type body for versatile installation</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1">
<td style="padding: 8px 10px;font-weight: 600">Construction</td>
<td style="padding: 8px 10px">SG iron body (BS 420/12) for strength and durability</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1;background-color: #fafafa">
<td style="padding: 8px 10px;font-weight: 600">Gate</td>
<td style="padding: 8px 10px">Stainless steel gate (304 standard, 316 optional)</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1">
<td style="padding: 8px 10px;font-weight: 600">Spindle</td>
<td style="padding: 8px 10px">Protected spindle with cover and bellows</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1;background-color: #fafafa">
<td style="padding: 8px 10px;font-weight: 600">Seals</td>
<td style="padding: 8px 10px">NR body seals for reliable sealing</td>
</tr>
<tr style="border-bottom: 1px solid #f1f1f1">
<td style="padding: 8px 10px;font-weight: 600">Yoke</td>
<td style="padding: 8px 10px">FBE coated mild steel yoke (stainless steel optional)</td>
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<tr style="border-bottom: 1px solid #f1f1f1;background-color: #fafafa">
<td style="padding: 8px 10px;font-weight: 600">Flange Compatibility</td>
<td style="padding: 8px 10px">DIN PN10 (other drillings available)</td>
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<tr style="border-bottom: 1px solid #f1f1f1">
<td style="padding: 8px 10px;font-weight: 600">Size Range</td>
<td style="padding: 8px 10px">DN50 - DN600</td>
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<tr>
<td style="padding: 8px 10px;font-weight: 600">Pressure Rating</td>
<td style="padding: 8px 10px">Up to 16 Bar (size dependent)</td>
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<p>The post <a href="https://majorvalves.co.za/shop/uni-flo-qb-knife-gate-valve/">UNI-FLO QB KNIFE GATE VALVE</a> appeared first on <a href="https://majorvalves.co.za">Major Valves</a>.</p>
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										<content:encoded><![CDATA[<p><strong>Knife Gate Valve </strong></p>
<p>The Knife Gate Valve is designed for reliable isolation in demanding slurry and bulk handling applications. Featuring a robust SG iron body and a semi-lugged wafer design, this valve ensures durability, corrosion resistance, and long service life in abrasive environments.</p>
<p>Equipped with dual replaceable elastomer sleeves, the valve provides bi-directional sealing, ensuring tight shut-off in both flow directions at maximum operating pressure. The full bore design allows unrestricted flow, minimizing pressure loss and improving system efficiency.</p>
<p>The smooth internal bore eliminates grooves and cavities where sediment or slurry can accumulate, reducing maintenance requirements. A protected spindle system, complete with a spindle cover and bellows, safeguards against contamination from splatter and harsh operating conditions.</p>
<p>Available in sizes from DN50 to DN600 with varying pressure ratings, this valve is ideal for industries requiring efficient flow control, abrasion resistance, and dependable shut-off performance.</p>
<p><strong>Key Features:</strong></p>
<ul>
<li>Bi-directional sealing with dual elastomer sleeves</li>
<li>Full bore unrestricted flow design</li>
<li>No cavities or grooves to prevent slurry build-up</li>
<li>Semi-lugged wafer type body for versatile installation</li>
<li>SG iron body (BS 420/12) for strength and durability</li>
<li>Stainless steel gate (304 standard, 316 optional)</li>
<li>Protected spindle with cover and bellows</li>
<li>NR body seals for reliable sealing</li>
<li>FBE coated mild steel yoke (stainless steel optional)</li>
<li>Flange compatibility: DIN PN10 (other drillings available)</li>
<li>Size range: DN50 – DN600</li>
<li>Pressure ratings: up to 16 Bar (size dependent)</li>
</ul>
<p><strong>Applications:</strong></p>
<p>Ideal for slurry, wastewater, mining, and bulk material handling systems where reliable isolation and minimal maintenance are critical.</p>
<p>The Knife Gate Valve delivers efficient, low-maintenance performance with robust construction and long-term reliability.</p>
<p>The post <a href="https://majorvalves.co.za/shop/uni-flo-qb-knife-gate-valve/">UNI-FLO QB KNIFE GATE VALVE</a> appeared first on <a href="https://majorvalves.co.za">Major Valves</a>.</p>
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