The Seetru Screw Jack

A simple and effective hydraulic tester for safety valves – now available to customers!

The Seetru Screw Jack is a simple yet effective device which was initially designed to allow technicians from our Engineering Services division to quickly and accurately assess the functional performance of Safety Valves on-site.

Due to the sheer number of enquiries our engineers have received regarding this fantastic piece of kit, we have now made the Screw Jack available for purchase. The size range available is from ¼″ to 2″ inlet.

Features & Benefits:
• Lightweight (dry weight 3.9kg)
• Durable (stainless steel construction)
• Ease of operation
• Bench mounted or sat in a vice
• Can be used with either water or oil
• Gauge can be supplied (optional extra)
• BSP or NPT • 6 adaptors available (optional extra) • Suitable for screwed and flanged valves
• Max working pressure: 460 bar.g /6671 psi

Other Products & Services from Seetru include: -
• Safety Relief Valves
• Stock Safety Valves (Quick Delivery)
• LGS® Safety Valves (Liquid, Gas & Steam)
• Auxiliary Valves • Liquid Level Contents Gauges
• Window Sight Glasses

Flanged Safety Valves
Seetru also offer a comprehensive range of flanged safety valves through our sister company Leser UK, see

Seetru Engineering Services
Service offered through our Engineering Services division include: -
• Safety Valve Testing & Certification
• On-Site Services
• TruTest® In-Situ Valve Testing
• Safety Valve Reconditioning

Tel: 0117 927 9204

Published in Valve User Magazine Issue 45

Winter 2019 // Issue 51
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