Pressure Calibration Volume Controllers QTVC (3000 psi / 210 bar) Perform both ultra-precise low pressure differential or high pressure static pressure calibrations with nitrogen using the same device. Features: • Proprietary pressure balanced fine adjustment piston allows for extremely precise, finger-tip control of pressure at 0.03 psi (2 mbar) or 3000 psi (210 bar) or any range in between. • Fine adjust piston, fill, balance and vent valves are in one light weight, compact unit • Includes handle, Quick-test System™ outlet connections, hoses and adapters QTVC-LKIT • Low volume Quick-test hose, gauge adapter and process connection can be attached to QTVC without thread sealant or a wrench • Soft-seated valves make filling and venting the system very precise • Optional stand for laboratory or table top use (QTVC-LKIT) • Optional padded strap for field use (NPAK-STRP) • Made in U.S.A. R alston Ins t rum ent s, L LC w ww.ralstonins t .com 1 . 8 0 0 . 3 47.6575 Pressure Calibration Volume Controllers QTVC (3000 psi / 210 bar) Specifications QTVC connection type National Pipe Thread (NPT) British Parallel Thread (BSPP)* Maximum pressure 3000 psi (210 bar) 3000 psi (210 bar) Pressure media Compressed nitrogen Compressed nitrogen Fine adjust resolution ± 0.0005 psi (0.035 mbar) ± 0.0005 psi (0.035 mbar) Mechanical rotation 42 turn (pressure balanced) 42 turn (pressure balanced) Operating temperature range 0º to 130ºF (-18º to 56º C) 0º to 130ºF (-18º to 56º C) Reference connection (brass) See below See below Inlet, gauge ports (brass) Male Quick-test port (QTHA-5SB0) Male Quick-test port (QTHA-5SB0) Outlet ports (brass) (2) Male Quick-test port with cap and chain (QTFT-5SB0) (2) Male Quick-test port with cap and chain (QTFT-5SB0) Quick-test hose 1 (brass ends) 6 ft (183 cm) long (QTQT-HOS-6’) 2 m (6.6 ft) long (QTQT-HOS-2m) Quick-test hose 2 (brass ends) 3 ft (92 cm) long (QTQT-HOS-3’) 1 m (3.3 ft) long (QTQT-HOS-1m) Process connection (brass) (2) 1/4” male NPT (QTHA-2MB0) (2) 1/4” female BSPP (QTHA-2FB0-RG) Construction Aluminum, brass, plated steel, stainless steel Aluminum, brass, plated steel, stainless steel Seal material Buna-N, Teflon™, Delrin™ Buna-N, Teflon™, Delrin™ Weight 3.7 lb (2.5 kg), with stand 6.2 lb (2.8 kg) 3.7 lb (2.5 kg), with stand 6.2 lb (2.8 kg) Ordering Information QTVC volume controllers with NPT connections Model Description QTVC-1MBA-6’-3’ 1/8” male NPT gauge adapter (QTHA-1MBA), 2 hoses, 2 process connections QTVC-2MBA-6’-3’ 1/4” male NPT gauge adapter (QTHA-2MBA), 2 hoses, 2 process connections QTVC-2FBA-6’-3’ 1/4” female NPT gauge adapter (QTHA-2FBA), 2 hoses, 2 process connections QTVC-0000-0-0 QTVC only, no gauge connection, no hoses, no process connections QTVC volume controllers with BSPP connections* Model Description QTVC-2FBA-RG-2m-1m 1/4” female BSPP gauge adapter (QTHA-2FBA-RG), 2 hoses, 2 process connections QTVC-3FBA-RG-2m-1m 3/8” female BSPP gauge adapter (QTHA-3FBA-RG) , 2 hoses, 2 process connections QTVC-4FBA-RG-2m-1m 1/2” female BSPP gauge adapter (QTHA-4FBA-RG), 2 hoses, 2 process connections Add -FKIT Field calibration kit - includes padded shoulder strap, metal hardware Add -LKIT QTVC Laboratory kit - includes non-skid stand, bulkhead male Quick-test port * Not for sale in North American market For accessories, repair kits and hoses see page 17. For a complete list of accessories and parts see product manual or detailed specification sheet. For a list of the most commonly used gauge and process connections see page 18. For a complete list refer to Ralston Instruments Pressure Connection catalog. Contact your Ralston Instruments dealer or the factory for information on reference gauges and pressure calibration kits. R alston Ins t rum ent s, L LC w ww.ralsto nins t .com 1 . 8 0 0 . 3 47.6575