| Specification | Details |
|---|---|
| Brand | Blackmer |
| Manufacturer | Blackmer / PSG |
| Model / MPN | TXSD2A |
| Series | TX Series |
| Product Type | Sliding Vane Transfer Pump |
| Nominal Port Size | 2" |
| Pump Configuration | Double-Ended Shaft |
| Pump Body | Cast Iron |
| Seal Configuration | PTFE / Carbon / PTFE |
| Seal Face | Carbon |
| Stationary Seal O-Ring | PTFE |
| Rotating Seal Ring | PTFE |
| Head O-Rings | PTFE |
| Head O-Ring P/N | 702242 |
| Number of Vanes | 4 |
| Vane Type | Duravane |
| Relief Valve | Integral / Adjustable |
| Standard TX Relief Spring Range | 76–110 PSI* |
| Drive | External drive / shaft driven |
| Application | Petroleum and compatible liquid transfer |
| Industrial Use | Tank trucks, tenals, bulk plants and transfer systems |
Blackmer's parts documentation confirms that the TXSD2A is a double-ended-shaft pump and identifies PTFE head O-rings as part number 702242. It also documents PTFE/carbon mechanical-seal configurations for the TXD2A/TXSD2A family.
Blackmer documentation lists four Duravanes for the TXD2A/TXSD2A family and multiple relief-valve spring options, including 36–50, 51–75, 76–110 and 111–125 PSI; therefore, the actual relief-valve spring fitted to a used or surplus pump should be verified rather than assumed.
For this particular TXSD2A TEF/CAR/TEF configuration, the description indicates a PTFE O-ring, carbon seal face and PTFE seal ring. Blackmer documentation identifies the corresponding mechanical-seal configuration as using a cast-iron stationary seat, PTFE O-ring, carbon seal face and PTFE rotating seal ring.
The PTFE head O-ring is separately identified by Blackmer as P/N 702242, with two head O-rings used per pump.
BLACKMER TXSD2A 2" SLIDING VANE TRANSFER PUMP – PTFE/CARBON/PTFE SEALS – PTFE HEAD O-RINGS
Offered is a Blackmer TXSD2A 2-inch positive-displacement sliding vane transfer pump configured with PTFE/Carbon/PTFE mechanical seals and PTFE head O-rings.
The TXSD2A belongs to Blackmer's proven TX-series pump family and uses a double-ended rotor/shaft configuration. Its sliding-vane pumping principle is designed for dependable transfer of petroleum products and other liquids compatible with the pump's construction and sealing materials.
This unit's PTFE/Carbon/PTFE sealing arrangement provides a carbon seal face combined with PTFE sealing components. It is additionally equipped with PTFE head O-rings, making this configuration useful where PTFE compatibility is preferred over standard elastomer head seals.
The pump incorporates four replaceable Duravane vanes and an integral adjustable relief-valve assembly. Blackmer's serviceable design allows major wear components, seals, bearings, vanes and O-rings to be replaced when required.
Highlights:
The TXSD2A is suitable for appropriately engineered bulk-liquid transfer installations such as:
Important: Liquid compatibility must be verified against the actual pump materials and PTFE/carbon seal configuration before use. Also verify the installed relief-valve spring, flange/port configuration, rotational direction and operating requirements from the actual pump nameplate before installation.